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KM-2

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  • j-chris.polet
    Another link gives some flight characteristics of the KM-2 modification : http://www.airwar.ru/enc/sea/km2.html Despite considerable efforts in the aviation
    Message 1 of 5 , Oct 3, 2013
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      Another link gives some flight characteristics of the KM-2 modification :


      Despite considerable efforts in the aviation industry, in the prewar years, domestic designers have not been able to create a long-range maritime reconnaissance aircraft. In 1937, the Soviet Union was forced to purchase a license for the production of twin-engine flying boat Consolidated PBY- 1, more recent modifications which have become widely known as the " Catalina ". Simultaneously, three cars were purchased unassembled. Two years later, the factory number 31 at Taganrog unfolded mass production of seaplanes under the symbol "GST" ( seaplane transport ). The first cars were produced with engines M-87, and later - with the M- 88. After delivery of twenty-one aircraft to the customer the production stopped, since airframe was low-tech and labor-intensive. Surprisingly, the command of Naval Aviation indifferently met new cars.

      As a result, much of the North entered the aircraft, which aircraft operated under the symbol MP- 7. Large range and duration of the flight had to " taste" of the NSRA .

      The second time, "Catalina" appeared in the Soviet Union during World War II and after the termination of the Lend -Lease constituted a significant part of the fleet of seaplanes .

      In the late 40 's, when the warehouses run out of new American engines and spare parts for them, the Ministry of Defence has asked the leaders of the aviation industry to replace your "lend-lease" engines for domestic AL- 62 and AL-82FN. But MAP, citing the complexity and volume of work, the Navy refused . The situation was saved EDO Polar Aviation. In 1948, a small group headed by M. Mostow, proposed to fit PBN- 1 with AL-82FN engine with feathering propellers AB -9E - 21K instead of the Pratt & Whitney R- 1830- 92. The new engines are pretty hard to get it, but the designers of luck. Propeller group completely removed from the Tu -2, crashed shortly before the events described. Engines repaired and left only one blower speed as high ceiling seaplane was not required .

      scheme "Catalina" KM-2
      Seaplane increased nacelle, oil tanks and the center section. Increased the stiffness of the cockpit canopy and installed additional damping sheets on the sides of the boat in the plane of rotation of the propellers, as well as domestic flight and navigational equipment and control devices of the power plant.

      «Каталина» КМ-2
      The first plane has undergone modernization with index Polar Aviation H-338. In the period from June to July 1948 in Krasnoyarsk, with the participation of the crew in the Polar Aviation pilots Bahtinova and Romanova, flight mechanics and Ostrovenko Priydaka, radio operator Korsakov KM-2 has passed factory tests. September 4th car in transport version passed the factory number 447 in one part of the naval aviation on the state tests, which took place in the period from September 4 to October 9, 1948 at NAS KishLake near Riga. At this stage, the tests were leading engineer VD Kuharenko, pilots FS Leshenko and L. Ivanov, VV navigator Filkin and radio operator SD Rams.
      The use of more powerful engines favorably affected the flight characteristics of the "Catalina". According to both the crew of testers and pilots flying by Kulikov and Fedukova, equipment seaplane domestic appliances greatly simplify orientation in piloting. Easier to control and turned the power plant. At the same time, the engine offset towards 430 mm resulting in a significant increase in the noise level in the cockpit.

      Markedly improved maneuverability on the water. It became easier to steer in a straight line in a crosswind and decreased circulation radius at high wind speeds.
      The run of the seaplane as a whole is stable, he quickly gained the take-off speed and gradually broke away from the water. Rise in wind wave height of 1.2 m was simple seaplane out on redan vigorously and steadily planing. In the case of ejection wave on a seaplane take-off speed at large drawdowns were not, he quickly picked up speed and continued flying without splashdown.

      At the minimum acceptable level flight speed of 160 km/h the car is well governed and has been stable. Input KM-2 and turn it on conclusion of flight technique was the same as in the PBN-1. Normal load on the handlebars.
      Seaplanes KM-2 and PBN-1 had two types of landing on the first and second planing steps with the indicated speed 145-138 km/h and 115-110 km/h, respectively. Landing on the first redan was made with wind wave height of 0.8 m, and the second - with wind waves over 0.8 m in the latter case, the alignment was carried out at a height of 6-8 m Landing on wind waves up to 1.2 m was carried out both planing steps. At first redan car alight on water hard, with a strong feeling of hitting the bottom. On the second redan soft splashdown. "Barcelona" is not observed.

      KM-2 was flying well with one working and zaflyugirovannym (feathered ?) second screw, idle the engine. Currently unfolding in the direction of the non-working small motor and the load on the leg completely shot trimmer.

      Stability and control of the seaplane was normal and he was a good balance in all flight modes. When tested for buffeting operation at maximum engine speed was adjusted to 115 km/h, but vibration is not detected.

      color option "Catalina" KM-2

      The conclusions of the Act on state tests indicated that :

           "Seaplane KM-2 with domestic AL-82FN engines and four-blade propeller AB-9E-21K at the maximum rate of climb, the practical ceiling, takeoff and landing characteristics and seaworthiness has better performance than a seaplane PBN-1 engines, Pratt & Whitney R-1830-92.

           Given that the modification did not change the airframe structure and therefore can be installed bomber, mine-torpedo and small arms, seaplane KM-2 can be used in the following versions of combat use:

           - A night heavy bomber;
           - The destroyer;
           - Torpedo;
           - Long-range reconnaissance to search for ships and submarines on the high seas;
           - Patrol aircraft and patrol and rescue service;
           - Aircraft landing and sanitary services;
           -Trainer seaplane. "

      In conclusion, stated:

          "... The KM -2 with domestic engines AL-82FN ... state tests survive. ... Recommend the installation of engines AL-82FN for seaplanes PBN- 1 naval aviation .
          Due to the removal of engines AL-82FN forward by 430 mm centering CM -2 has moved forward by 2.8 % MAC .

          Maneuverability seaplane KM -2 on the water, thanks to higher capacity engines, improved compared with PBN- 1 seaplane . Average circulation radius is equal to one of the seaplane wing span .

          On the run-up seaplane quickly goes on redan and steadily glides . Splashing glass cockpit pilots and screws on plane missing.

          Seaplane KM -2 can steer at any angle to the wind force of 10 m/s . On one engine can steer in a straight line when the wind force of up to 6 m / s and above.

          With a normal gross weight 14,000 kg can produce a seaplane landing in wind of up to 1.2 and the wind speed of 15 m/s .

          Making full use of the power of engines AL-82FN seaplane KM-2 maximum speeds can be obtained much larger than the allowable specifications UPA GUSMP .

          In addition, the use of forced power motors, seaplane KM - 2 allows you to increase the maximum weight of a tear , but it is necessary to check the structural strength of the seaplane . "

       
      Jean-Christophe
    • Erik Thingbo
      J-Christophe. Thanks for interesting readings about the Russian Catalina’s and it are a great piece of history as well! Erik ... From: j-chris.polet To:
      Message 2 of 5 , Oct 4, 2013
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        J-Christophe.

        Thanks for interesting readings about the Russian Catalina’s and it are a great piece of history as well!

        Erik

        ----- Original Message -----
        Sent: Thursday, October 03, 2013 10:57 PM
        Subject: [PBY] KM-2

         

        Another link gives some flight characteristics of the KM-2 modification :


        Despite considerable efforts in the aviation industry, in the prewar years, domestic designers have not been able to create a long-range maritime reconnaissance aircraft. In 1937, the Soviet Union was forced to purchase a license for the production of twin-engine flying boat Consolidated PBY- 1, more recent modifications which have become widely known as the " Catalina ". Simultaneously, three cars were purchased unassembled. Two years later, the factory number 31 at Taganrog unfolded mass production of seaplanes under the symbol "GST" ( seaplane transport ). The first cars were produced with engines M-87, and later - with the M- 88. After delivery of twenty-one aircraft to the customer the production stopped, since airframe was low-tech and labor-intensive. Surprisingly, the command of Naval Aviation indifferently met new cars.

        As a result, much of the North entered the aircraft, which aircraft operated under the symbol MP- 7. Large range and duration of the flight had to " taste" of the NSRA .

        The second time, "Catalina" appeared in the Soviet Union during World War II and after the termination of the Lend -Lease constituted a significant part of the fleet of seaplanes .

        In the late 40 's, when the warehouses run out of new American engines and spare parts for them, the Ministry of Defence has asked the leaders of the aviation industry to replace your "lend-lease" engines for domestic AL- 62 and AL-82FN. But MAP, citing the complexity and volume of work, the Navy refused . The situation was saved EDO Polar Aviation. In 1948, a small group headed by M. Mostow, proposed to fit PBN- 1 with AL-82FN engine with feathering propellers AB -9E - 21K instead of the Pratt & Whitney R- 1830- 92. The new engines are pretty hard to get it, but the designers of luck. Propeller group completely removed from the Tu -2, crashed shortly before the events described. Engines repaired and left only one blower speed as high ceiling seaplane was not required .

        scheme "Catalina" KM-2
        Seaplane increased nacelle, oil tanks and the center section. Increased the stiffness of the cockpit canopy and installed additional damping sheets on the sides of the boat in the plane of rotation of the propellers, as well as domestic flight and navigational equipment and control devices of the power plant.

        «Каталина» КМ-2
        The first plane has undergone modernization with index Polar Aviation H-338. In the period from June to July 1948 in Krasnoyarsk, with the participation of the crew in the Polar Aviation pilots Bahtinova and Romanova, flight mechanics and Ostrovenko Priydaka, radio operator Korsakov KM-2 has passed factory tests. September 4th car in transport version passed the factory number 447 in one part of the naval aviation on the state tests, which took place in the period from September 4 to October 9, 1948 at NAS KishLake near Riga. At this stage, the tests were leading engineer VD Kuharenko, pilots FS Leshenko and L. Ivanov, VV navigator Filkin and radio operator SD Rams.
        The use of more powerful engines favorably affected the flight characteristics of the "Catalina". According to both the crew of testers and pilots flying by Kulikov and Fedukova, equipment seaplane domestic appliances greatly simplify orientation in piloting. Easier to control and turned the power plant. At the same time, the engine offset towards 430 mm resulting in a significant increase in the noise level in the cockpit.

        Markedly improved maneuverability on the water. It became easier to steer in a straight line in a crosswind and decreased circulation radius at high wind speeds.
        The run of the seaplane as a whole is stable, he quickly gained the take-off speed and gradually broke away from the water. Rise in wind wave height of 1.2 m was simple seaplane out on redan vigorously and steadily planing. In the case of ejection wave on a seaplane take-off speed at large drawdowns were not, he quickly picked up speed and continued flying without splashdown.

        At the minimum acceptable level flight speed of 160 km/h the car is well governed and has been stable. Input KM-2 and turn it on conclusion of flight technique was the same as in the PBN-1. Normal load on the handlebars.
        Seaplanes KM-2 and PBN-1 had two types of landing on the first and second planing steps with the indicated speed 145-138 km/h and 115-110 km/h, respectively. Landing on the first redan was made with wind wave height of 0.8 m, and the second - with wind waves over 0.8 m in the latter case, the alignment was carried out at a height of 6-8 m Landing on wind waves up to 1.2 m was carried out both planing steps. At first redan car alight on water hard, with a strong feeling of hitting the bottom. On the second redan soft splashdown. "Barcelona" is not observed.

        KM-2 was flying well with one working and zaflyugirovannym (feathered ?) second screw, idle the engine. Currently unfolding in the direction of the non-working small motor and the load on the leg completely shot trimmer.

        Stability and control of the seaplane was normal and he was a good balance in all flight modes. When tested for buffeting operation at maximum engine speed was adjusted to 115 km/h, but vibration is not detected.

        color option "Catalina" KM-2

        The conclusions of the Act on state tests indicated that :

             "Seaplane KM-2 with domestic AL-82FN engines and four-blade propeller AB-9E-21K at the maximum rate of climb, the practical ceiling, takeoff and landing characteristics and seaworthiness has better performance than a seaplane PBN-1 engines, Pratt & Whitney R-1830-92.

             Given that the modification did not change the airframe structure and therefore can be installed bomber, mine-torpedo and small arms, seaplane KM-2 can be used in the following versions of combat use:

             - A night heavy bomber;
             - The destroyer;
             - Torpedo;
             - Long-range reconnaissance to search for ships and submarines on the high seas;
             - Patrol aircraft and patrol and rescue service;
             - Aircraft landing and sanitary services;
             -Trainer seaplane. "

        In conclusion, stated:

            "... The KM -2 with domestic engines AL-82FN ... state tests survive. ... Recommend the installation of engines AL-82FN for seaplanes PBN- 1 naval aviation .
            Due to the removal of engines AL-82FN forward by 430 mm centering CM -2 has moved forward by 2.8 % MAC .

            Maneuverability seaplane KM -2 on the water, thanks to higher capacity engines, improved compared with PBN- 1 seaplane . Average circulation radius is equal to one of the seaplane wing span .

            On the run-up seaplane quickly goes on redan and steadily glides . Splashing glass cockpit pilots and screws on plane missing.

            Seaplane KM -2 can steer at any angle to the wind force of 10 m/s . On one engine can steer in a straight line when the wind force of up to 6 m / s and above.

            With a normal gross weight 14,000 kg can produce a seaplane landing in wind of up to 1.2 and the wind speed of 15 m/s .

            Making full use of the power of engines AL-82FN seaplane KM-2 maximum speeds can be obtained much larger than the allowable specifications UPA GUSMP .

            In addition, the use of forced power motors, seaplane KM - 2 allows you to increase the maximum weight of a tear , but it is necessary to check the structural strength of the seaplane . "

         
        Jean-Christophe

      • j-chris.polet
        I am collecting (and translating) all the infos we have on the Russian sites I can find. I do not practice Russian but just recognize the alphabet and
        Message 3 of 5 , Oct 6, 2013
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          I am collecting (and translating) all the infos we have on the Russian sites I can find.
          I do not practice Russian but just recognize the alphabet and wording... Hard work but fruitfull.
          Seems some guys have first hand material.
          Is it reliable recording is the question.
          Have a good day.
          Cold is coming down over the country but nice weather forecasted for the next week.
           
          Jean-Christophe


          De : Erik Thingbo <erik.thingbo@...>
          À : PBY@yahoogroups.com
          Envoyé le : Vendredi 4 octobre 2013 13h22
          Objet : Re: [PBY] KM-2

           
          
          J-Christophe.
          Thanks for interesting readings about the Russian Catalina’s and it are a great piece of history as well!
          Erik
          ----- Original Message -----
          Sent: Thursday, October 03, 2013 10:57 PM
          Subject: [PBY] KM-2

           
          Another link gives some flight characteristics of the KM-2 modification :


          Despite considerable efforts in the aviation industry, in the prewar years, domestic designers have not been able to create a long-range maritime reconnaissance aircraft. In 1937, the Soviet Union was forced to purchase a license for the production of twin-engine flying boat Consolidated PBY- 1, more recent modifications which have become widely known as the " Catalina ". Simultaneously, three cars were purchased unassembled. Two years later, the factory number 31 at Taganrog unfolded mass production of seaplanes under the symbol "GST" ( seaplane transport ). The first cars were produced with engines M-87, and later - with the M- 88. After delivery of twenty-one aircraft to the customer the production stopped, since airframe was low-tech and labor-intensive. Surprisingly, the command of Naval Aviation indifferently met new cars.

          As a result, much of the North entered the aircraft, which aircraft operated under the symbol MP- 7. Large range and duration of the flight had to " taste" of the NSRA .

          The second time, "Catalina" appeared in the Soviet Union during World War II and after the termination of the Lend -Lease constituted a significant part of the fleet of seaplanes .

          In the late 40 's, when the warehouses run out of new American engines and spare parts for them, the Ministry of Defence has asked the leaders of the aviation industry to replace your "lend-lease" engines for domestic AL- 62 and AL-82FN. But MAP, citing the complexity and volume of work, the Navy refused . The situation was saved EDO Polar Aviation. In 1948, a small group headed by M. Mostow, proposed to fit PBN- 1 with AL-82FN engine with feathering propellers AB -9E - 21K instead of the Pratt & Whitney R- 1830- 92. The new engines are pretty hard to get it, but the designers of luck. Propeller group completely removed from the Tu -2, crashed shortly before the events described. Engines repaired and left only one blower speed as high ceiling seaplane was not required .

          scheme "Catalina" KM-2
          Seaplane increased nacelle, oil tanks and the center section. Increased the stiffness of the cockpit canopy and installed additional damping sheets on the sides of the boat in the plane of rotation of the propellers, as well as domestic flight and navigational equipment and control devices of the power plant.

          «Каталина» КМ-2
          The first plane has undergone modernization with index Polar Aviation H-338. In the period from June to July 1948 in Krasnoyarsk, with the participation of the crew in the Polar Aviation pilots Bahtinova and Romanova, flight mechanics and Ostrovenko Priydaka, radio operator Korsakov KM-2 has passed factory tests. September 4th car in transport version passed the factory number 447 in one part of the naval aviation on the state tests, which took place in the period from September 4 to October 9, 1948 at NAS KishLake near Riga. At this stage, the tests were leading engineer VD Kuharenko, pilots FS Leshenko and L. Ivanov, VV navigator Filkin and radio operator SD Rams.
          The use of more powerful engines favorably affected the flight characteristics of the "Catalina". According to both the crew of testers and pilots flying by Kulikov and Fedukova, equipment seaplane domestic appliances greatly simplify orientation in piloting. Easier to control and turned the power plant. At the same time, the engine offset towards 430 mm resulting in a significant increase in the noise level in the cockpit.

          Markedly improved maneuverability on the water. It became easier to steer in a straight line in a crosswind and decreased circulation radius at high wind speeds.
          The run of the seaplane as a whole is stable, he quickly gained the take-off speed and gradually broke away from the water. Rise in wind wave height of 1.2 m was simple seaplane out on redan vigorously and steadily planing. In the case of ejection wave on a seaplane take-off speed at large drawdowns were not, he quickly picked up speed and continued flying without splashdown.

          At the minimum acceptable level flight speed of 160 km/h the car is well governed and has been stable. Input KM-2 and turn it on conclusion of flight technique was the same as in the PBN-1. Normal load on the handlebars.
          Seaplanes KM-2 and PBN-1 had two types of landing on the first and second planing steps with the indicated speed 145-138 km/h and 115-110 km/h, respectively. Landing on the first redan was made with wind wave height of 0.8 m, and the second - with wind waves over 0.8 m in the latter case, the alignment was carried out at a height of 6-8 m Landing on wind waves up to 1.2 m was carried out both planing steps. At first redan car alight on water hard, with a strong feeling of hitting the bottom. On the second redan soft splashdown. "Barcelona" is not observed.

          KM-2 was flying well with one working and zaflyugirovannym (feathered ?) second screw, idle the engine. Currently unfolding in the direction of the non-working small motor and the load on the leg completely shot trimmer.

          Stability and control of the seaplane was normal and he was a good balance in all flight modes. When tested for buffeting operation at maximum engine speed was adjusted to 115 km/h, but vibration is not detected.

          color option "Catalina" KM-2

          The conclusions of the Act on state tests indicated that :

               "Seaplane KM-2 with domestic AL-82FN engines and four-blade propeller AB-9E-21K at the maximum rate of climb, the practical ceiling, takeoff and landing characteristics and seaworthiness has better performance than a seaplane PBN-1 engines, Pratt & Whitney R-1830-92.

               Given that the modification did not change the airframe structure and therefore can be installed bomber, mine-torpedo and small arms, seaplane KM-2 can be used in the following versions of combat use:

               - A night heavy bomber;
               - The destroyer;
               - Torpedo;
               - Long-range reconnaissance to search for ships and submarines on the high seas;
               - Patrol aircraft and patrol and rescue service;
               - Aircraft landing and sanitary services;
               -Trainer seaplane. "

          In conclusion, stated:

              "... The KM -2 with domestic engines AL-82FN ... state tests survive. ... Recommend the installation of engines AL-82FN for seaplanes PBN- 1 naval aviation .
              Due to the removal of engines AL-82FN forward by 430 mm centering CM -2 has moved forward by 2.8 % MAC .

              Maneuverability seaplane KM -2 on the water, thanks to higher capacity engines, improved compared with PBN- 1 seaplane . Average circulation radius is equal to one of the seaplane wing span .

              On the run-up seaplane quickly goes on redan and steadily glides . Splashing glass cockpit pilots and screws on plane missing.

              Seaplane KM -2 can steer at any angle to the wind force of 10 m/s . On one engine can steer in a straight line when the wind force of up to 6 m / s and above.

              With a normal gross weight 14,000 kg can produce a seaplane landing in wind of up to 1.2 and the wind speed of 15 m/s .

              Making full use of the power of engines AL-82FN seaplane KM-2 maximum speeds can be obtained much larger than the allowable specifications UPA GUSMP .

              In addition, the use of forced power motors, seaplane KM - 2 allows you to increase the maximum weight of a tear , but it is necessary to check the structural strength of the seaplane . "

           
          Jean-Christophe


        • Louis Dorny
          I ll assist as I can in making sense of the Russian. Thanks for collecting the stuff. As seen elsewhere, GST is ГСТ = гудросамелотный
          Message 4 of 5 , Oct 6, 2013
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            I'll assist as I can in making sense of the Russian. Thanks for collecting the stuff.  

            As seen elsewhere, 'GST' is ГСТ = гудросамелотный транспорт = hydroplane/seaplane transport.

            Lou


            On Oct 6, 2013, at 2159 , j-chris.polet wrote:

             

            I am collecting (and translating) all the infos we have on the Russian sites I can find.
            I do not practice Russian but just recognize the alphabet and wording... Hard work but fruitfull.
            Seems some guys have first hand material.
            Is it reliable recording is the question.
            Have a good day.
            Cold is coming down over the country but nice weather forecasted for the next week.
             
            Jean-Christophe


            De : Erik Thingbo <erik.thingbo@...>
            À : PBY@yahoogroups.com
            Envoyé le : Vendredi 4 octobre 2013 13h22
            Objet : Re: [PBY] KM-2

             
            
            J-Christophe.
            Thanks for interesting readings about the Russian Catalina’s and it are a great piece of history as well!
            Erik
            ----- Original Message -----
            Sent: Thursday, October 03, 2013 10:57 PM
            Subject: [PBY] KM-2

             
            Another link gives some flight characteristics of the KM-2 modification :


            Despite considerable efforts in the aviation industry, in the prewar years, domestic designers have not been able to create a long-range maritime reconnaissance aircraft. In 1937, the Soviet Union was forced to purchase a license for the production of twin-engine flying boat Consolidated PBY- 1, more recent modifications which have become widely known as the " Catalina ". Simultaneously, three cars were purchased unassembled. Two years later, the factory number 31 at Taganrog unfolded mass production of seaplanes under the symbol "GST" ( seaplane transport ). The first cars were produced with engines M-87, and later - with the M- 88. After delivery of twenty-one aircraft to the customer the production stopped, since airframe was low-tech and labor-intensive. Surprisingly, the command of Naval Aviation indifferently met new cars.

            As a result, much of the North entered the aircraft, which aircraft operated under the symbol MP- 7. Large range and duration of the flight had to " taste" of the NSRA .

            The second time, "Catalina" appeared in the Soviet Union during World War II and after the termination of the Lend -Lease constituted a significant part of the fleet of seaplanes .

            In the late 40 's, when the warehouses run out of new American engines and spare parts for them, the Ministry of Defence has asked the leaders of the aviation industry to replace your "lend-lease" engines for domestic AL- 62 and AL-82FN. But MAP, citing the complexity and volume of work, the Navy refused . The situation was saved EDO Polar Aviation. In 1948, a small group headed by M. Mostow, proposed to fit PBN- 1 with AL-82FN engine with feathering propellers AB -9E - 21K instead of the Pratt & Whitney R- 1830- 92. The new engines are pretty hard to get it, but the designers of luck. Propeller group completely removed from the Tu -2, crashed shortly before the events described. Engines repaired and left only one blower speed as high ceiling seaplane was not required .

            scheme "Catalina" KM-2
            Seaplane increased nacelle, oil tanks and the center section. Increased the stiffness of the cockpit canopy and installed additional damping sheets on the sides of the boat in the plane of rotation of the propellers, as well as domestic flight and navigational equipment and control devices of the power plant.

            «Каталина» КМ-2
            The first plane has undergone modernization with index Polar Aviation H-338. In the period from June to July 1948 in Krasnoyarsk, with the participation of the crew in the Polar Aviation pilots Bahtinova and Romanova, flight mechanics and Ostrovenko Priydaka, radio operator Korsakov KM-2 has passed factory tests. September 4th car in transport version passed the factory number 447 in one part of the naval aviation on the state tests, which took place in the period from September 4 to October 9, 1948 at NAS KishLake near Riga. At this stage, the tests were leading engineer VD Kuharenko, pilots FS Leshenko and L. Ivanov, VV navigator Filkin and radio operator SD Rams.
            The use of more powerful engines favorably affected the flight characteristics of the "Catalina". According to both the crew of testers and pilots flying by Kulikov and Fedukova, equipment seaplane domestic appliances greatly simplify orientation in piloting. Easier to control and turned the power plant. At the same time, the engine offset towards 430 mm resulting in a significant increase in the noise level in the cockpit.

            Markedly improved maneuverability on the water. It became easier to steer in a straight line in a crosswind and decreased circulation radius at high wind speeds.
            The run of the seaplane as a whole is stable, he quickly gained the take-off speed and gradually broke away from the water. Rise in wind wave height of 1.2 m was simple seaplane out on redan vigorously and steadily planing. In the case of ejection wave on a seaplane take-off speed at large drawdowns were not, he quickly picked up speed and continued flying without splashdown.

            At the minimum acceptable level flight speed of 160 km/h the car is well governed and has been stable. Input KM-2 and turn it on conclusion of flight technique was the same as in the PBN-1. Normal load on the handlebars.
            Seaplanes KM-2 and PBN-1 had two types of landing on the first and second planing steps with the indicated speed 145-138 km/h and 115-110 km/h, respectively. Landing on the first redan was made with wind wave height of 0.8 m, and the second - with wind waves over 0.8 m in the latter case, the alignment was carried out at a height of 6-8 m Landing on wind waves up to 1.2 m was carried out both planing steps. At first redan car alight on water hard, with a strong feeling of hitting the bottom. On the second redan soft splashdown. "Barcelona" is not observed.

            KM-2 was flying well with one working and zaflyugirovannym (feathered ?) second screw, idle the engine. Currently unfolding in the direction of the non-working small motor and the load on the leg completely shot trimmer.

            Stability and control of the seaplane was normal and he was a good balance in all flight modes. When tested for buffeting operation at maximum engine speed was adjusted to 115 km/h, but vibration is not detected.

            color option "Catalina" KM-2

            The conclusions of the Act on state tests indicated that :

                 "Seaplane KM-2 with domestic AL-82FN engines and four-blade propeller AB-9E-21K at the maximum rate of climb, the practical ceiling, takeoff and landing characteristics and seaworthiness has better performance than a seaplane PBN-1 engines, Pratt & Whitney R-1830-92.

                 Given that the modification did not change the airframe structure and therefore can be installed bomber, mine-torpedo and small arms, seaplane KM-2 can be used in the following versions of combat use:

                 - A night heavy bomber;
                 - The destroyer;
                 - Torpedo;
                 - Long-range reconnaissance to search for ships and submarines on the high seas;
                 - Patrol aircraft and patrol and rescue service;
                 - Aircraft landing and sanitary services;
                 -Trainer seaplane. "

            In conclusion, stated:

                "... The KM -2 with domestic engines AL-82FN ... state tests survive. ... Recommend the installation of engines AL-82FN for seaplanes PBN- 1 naval aviation .
                Due to the removal of engines AL-82FN forward by 430 mm centering CM -2 has moved forward by 2.8 % MAC .

                Maneuverability seaplane KM -2 on the water, thanks to higher capacity engines, improved compared with PBN- 1 seaplane . Average circulation radius is equal to one of the seaplane wing span .

                On the run-up seaplane quickly goes on redan and steadily glides . Splashing glass cockpit pilots and screws on plane missing.

                Seaplane KM -2 can steer at any angle to the wind force of 10 m/s . On one engine can steer in a straight line when the wind force of up to 6 m / s and above.

                With a normal gross weight 14,000 kg can produce a seaplane landing in wind of up to 1.2 and the wind speed of 15 m/s .

                Making full use of the power of engines AL-82FN seaplane KM-2 maximum speeds can be obtained much larger than the allowable specifications UPA GUSMP .

                In addition, the use of forced power motors, seaplane KM - 2 allows you to increase the maximum weight of a tear , but it is necessary to check the structural strength of the seaplane . "

             
            Jean-Christophe




          • j-chris.polet
            It comes to be funny whith names of crew members when Sokolov is translated Falcons, Zubov - Teeth, Joukov - Woolves...   Jean-Christophe
            Message 5 of 5 , Oct 7, 2013
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              It comes to be funny whith names of crew members when Sokolov is translated Falcons, Zubov - Teeth, Joukov - Woolves...

               
              Jean-Christophe


              De : Louis Dorny <louis41@...>
              À : PBY@yahoogroups.com
              Envoyé le : Lundi 7 octobre 2013 7h05
              Objet : Re: [PBY] KM-2

               
              I'll assist as I can in making sense of the Russian. Thanks for collecting the stuff.  

              As seen elsewhere, 'GST' is ГСТ = гудросамелотный транспорт = hydroplane/seaplane transport.

              Lou


              On Oct 6, 2013, at 2159 , j-chris.polet wrote:

               

              I am collecting (and translating) all the infos we have on the Russian sites I can find.
              I do not practice Russian but just recognize the alphabet and wording... Hard work but fruitfull.
              Seems some guys have first hand material.
              Is it reliable recording is the question.
              Have a good day.
              Cold is coming down over the country but nice weather forecasted for the next week.
               
              Jean-Christophe


              De : Erik Thingbo <erik.thingbo@...>
              À : PBY@yahoogroups.com
              Envoyé le : Vendredi 4 octobre 2013 13h22
              Objet : Re: [PBY] KM-2

               
              
              J-Christophe.
              Thanks for interesting readings about the Russian Catalina’s and it are a great piece of history as well!
              Erik
              ----- Original Message -----
              Sent: Thursday, October 03, 2013 10:57 PM
              Subject: [PBY] KM-2

               
              Another link gives some flight characteristics of the KM-2 modification :


              Despite considerable efforts in the aviation industry, in the prewar years, domestic designers have not been able to create a long-range maritime reconnaissance aircraft. In 1937, the Soviet Union was forced to purchase a license for the production of twin-engine flying boat Consolidated PBY- 1, more recent modifications which have become widely known as the " Catalina ". Simultaneously, three cars were purchased unassembled. Two years later, the factory number 31 at Taganrog unfolded mass production of seaplanes under the symbol "GST" ( seaplane transport ). The first cars were produced with engines M-87, and later - with the M- 88. After delivery of twenty-one aircraft to the customer the production stopped, since airframe was low-tech and labor-intensive. Surprisingly, the command of Naval Aviation indifferently met new cars.

              As a result, much of the North entered the aircraft, which aircraft operated under the symbol MP- 7. Large range and duration of the flight had to " taste" of the NSRA .

              The second time, "Catalina" appeared in the Soviet Union during World War II and after the termination of the Lend -Lease constituted a significant part of the fleet of seaplanes .

              In the late 40 's, when the warehouses run out of new American engines and spare parts for them, the Ministry of Defence has asked the leaders of the aviation industry to replace your "lend-lease" engines for domestic AL- 62 and AL-82FN. But MAP, citing the complexity and volume of work, the Navy refused . The situation was saved EDO Polar Aviation. In 1948, a small group headed by M. Mostow, proposed to fit PBN- 1 with AL-82FN engine with feathering propellers AB -9E - 21K instead of the Pratt & Whitney R- 1830- 92. The new engines are pretty hard to get it, but the designers of luck. Propeller group completely removed from the Tu -2, crashed shortly before the events described. Engines repaired and left only one blower speed as high ceiling seaplane was not required .

              scheme "Catalina" KM-2
              Seaplane increased nacelle, oil tanks and the center section. Increased the stiffness of the cockpit canopy and installed additional damping sheets on the sides of the boat in the plane of rotation of the propellers, as well as domestic flight and navigational equipment and control devices of the power plant.

              «Каталина» КМ-2
              The first plane has undergone modernization with index Polar Aviation H-338. In the period from June to July 1948 in Krasnoyarsk, with the participation of the crew in the Polar Aviation pilots Bahtinova and Romanova, flight mechanics and Ostrovenko Priydaka, radio operator Korsakov KM-2 has passed factory tests. September 4th car in transport version passed the factory number 447 in one part of the naval aviation on the state tests, which took place in the period from September 4 to October 9, 1948 at NAS KishLake near Riga. At this stage, the tests were leading engineer VD Kuharenko, pilots FS Leshenko and L. Ivanov, VV navigator Filkin and radio operator SD Rams.
              The use of more powerful engines favorably affected the flight characteristics of the "Catalina". According to both the crew of testers and pilots flying by Kulikov and Fedukova, equipment seaplane domestic appliances greatly simplify orientation in piloting. Easier to control and turned the power plant. At the same time, the engine offset towards 430 mm resulting in a significant increase in the noise level in the cockpit.

              Markedly improved maneuverability on the water. It became easier to steer in a straight line in a crosswind and decreased circulation radius at high wind speeds.
              The run of the seaplane as a whole is stable, he quickly gained the take-off speed and gradually broke away from the water. Rise in wind wave height of 1.2 m was simple seaplane out on redan vigorously and steadily planing. In the case of ejection wave on a seaplane take-off speed at large drawdowns were not, he quickly picked up speed and continued flying without splashdown.

              At the minimum acceptable level flight speed of 160 km/h the car is well governed and has been stable. Input KM-2 and turn it on conclusion of flight technique was the same as in the PBN-1. Normal load on the handlebars.
              Seaplanes KM-2 and PBN-1 had two types of landing on the first and second planing steps with the indicated speed 145-138 km/h and 115-110 km/h, respectively. Landing on the first redan was made with wind wave height of 0.8 m, and the second - with wind waves over 0.8 m in the latter case, the alignment was carried out at a height of 6-8 m Landing on wind waves up to 1.2 m was carried out both planing steps. At first redan car alight on water hard, with a strong feeling of hitting the bottom. On the second redan soft splashdown. "Barcelona" is not observed.

              KM-2 was flying well with one working and zaflyugirovannym (feathered ?) second screw, idle the engine. Currently unfolding in the direction of the non-working small motor and the load on the leg completely shot trimmer.

              Stability and control of the seaplane was normal and he was a good balance in all flight modes. When tested for buffeting operation at maximum engine speed was adjusted to 115 km/h, but vibration is not detected.

              color option "Catalina" KM-2

              The conclusions of the Act on state tests indicated that :

                   "Seaplane KM-2 with domestic AL-82FN engines and four-blade propeller AB-9E-21K at the maximum rate of climb, the practical ceiling, takeoff and landing characteristics and seaworthiness has better performance than a seaplane PBN-1 engines, Pratt & Whitney R-1830-92.

                   Given that the modification did not change the airframe structure and therefore can be installed bomber, mine-torpedo and small arms, seaplane KM-2 can be used in the following versions of combat use:

                   - A night heavy bomber;
                   - The destroyer;
                   - Torpedo;
                   - Long-range reconnaissance to search for ships and submarines on the high seas;
                   - Patrol aircraft and patrol and rescue service;
                   - Aircraft landing and sanitary services;
                   -Trainer seaplane. "

              In conclusion, stated:

                  "... The KM -2 with domestic engines AL-82FN ... state tests survive. ... Recommend the installation of engines AL-82FN for seaplanes PBN- 1 naval aviation .
                  Due to the removal of engines AL-82FN forward by 430 mm centering CM -2 has moved forward by 2.8 % MAC .

                  Maneuverability seaplane KM -2 on the water, thanks to higher capacity engines, improved compared with PBN- 1 seaplane . Average circulation radius is equal to one of the seaplane wing span .

                  On the run-up seaplane quickly goes on redan and steadily glides . Splashing glass cockpit pilots and screws on plane missing.

                  Seaplane KM -2 can steer at any angle to the wind force of 10 m/s . On one engine can steer in a straight line when the wind force of up to 6 m / s and above.

                  With a normal gross weight 14,000 kg can produce a seaplane landing in wind of up to 1.2 and the wind speed of 15 m/s .

                  Making full use of the power of engines AL-82FN seaplane KM-2 maximum speeds can be obtained much larger than the allowable specifications UPA GUSMP .

                  In addition, the use of forced power motors, seaplane KM - 2 allows you to increase the maximum weight of a tear , but it is necessary to check the structural strength of the seaplane . "

               
              Jean-Christophe






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