Guess I offended Doug Hart with my posting of my experience with his operation. I have been banned from the Hart Aero group for discussing my problem with Doug...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Airchairgroup group. File :...
Airchairgroup@yahoogr...
Nov 1, 2007 2:17 pm
6363
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Airchairgroup group. File :...
Airchairgroup@yahoogr...
Nov 1, 2007 2:19 pm
6364
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the Airchairgroup group. File :...
Airchairgroup@yahoogr...
Nov 1, 2007 2:21 pm
6365
I hope Chris doesnt mind but as the recent files uploaded are very exciting to me I wanted to thank him for providing in hi res format. nonetheless, I have...
And forgot to mention about the plans of small russian plane "Kolibri". This is also copyrighted material at least in Russia and CIS states. This plane was...
Never underestimate a Russian Aircraft - some of their military aircraft can land with their gear up (due to combat) and be back in the air 60 min later - know...
Hi Scott and all, Yes, that is the E749. The spar is .025 2024 t3 with 1x1 .063 angles. Nose ribs are 2" blue foam with .025 channels. Leading edges are .016...
Referencing our recent discussions, one thing I failed to mention was the early use of SKID-FINS on gliders and although I cant find any use of them on two...
I recently stumbled across this and dont know if I ever shared this before.... The really neat possibility this opens up as opposed to pusher is the ability...
2024-T3 clad is the greatest alum alloy for most aircraft purposes that we use. 6061-T6 is next, especially for its tight bend radius. Hysol we use for ...
That's pretty cool. Do you know what kind of accuracy he's getting? Also, is he using the wing on a Lazair or something else? That airfoil has a lot more speed...
I suspect that unless they were carefully designed as efficient winglets, the tip fins would cost you more drag than the dihedral. After all, the cosine of 7...
I think the math with propellors is well enough known that you could get pretty close if you knew the performance of the airframe fairly well. BTW, I figure...
I am getting excited about the idea of a very simple, open cockpit ultraight inspired by the Pelican flying wing I've already mentioned. It would be a glider...
Lincoln, do you think tips at 180 mph ( 262 ft/sec or mach .24 ) would be noisy ? I mentioned 75 inch props as that is the longest adjustable prop that is...
I think Chris is just using the wing on a regular ? ole airchair. I dont know of any planes to have used the more recent E749 but I do know of several fabric...
Not WingTip-Fins but Skid-Fins built around the king posts on wire braced aircraft. These used to reduce dihedral for more efficiency and still retain the...
I believe you should leave well enough alone, Rex. Cloth covering and undercambering do not go well together. It involves rib lacing/riveting and maybe...
Rex- Here is what I think would be the result.... Your stall, and best L/D glide speed would drop a few mph. I think your Glide ratio would increase a notch...
I think the issue isn't so much the "undercamber" as it is the required precision to really take advantage of the designed extent of laminar flow. Some of the...
If you will notice these aircraft are all made from Schweitzer 1-34, 2-32 aircraft. (built in the plant) ************************************** See what's new...
Why are we concerned with all these laminar airfoils when they won't work with a low velocity airchair? ************************************** See what's new...
180 mph is SO much less than the usual speed that I'm thinking it would have to be much quieter. Usually propellor tips have a significant Mach number. For...
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