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I thought some of you might enjoy seeing how the Mustang II did at cruise in the Flight Levels.
This is a normally-aspirated, IO-320-B1A, 160 HP, fixed gear M-II.
Thursday, March 10th I flew non-stop from KOLV (in Northwest Mississippi) to Gettysburg, Pennsylvania (W05),
663 NM straight-line (airways filed= 679 NM). Center gave me "Direct destination" shortly after takeoff.
(Image of the route): http://experimentalairplane.com/KOLV-W05-route.gif (72 KB)
Started "fairly low" at 9,000', then step-climbed to the mid-teens, then tried the Flight Levels for the last few hundred miles taking advantage of winds that were forecast to be 270° at 65 K over West Virginia at FL 180.
Takeoff time was 1057 CT (1157 ET).
At 1420 ET was 60 southwest of Charleston (HVQ) and collected these data at 17,000':
OAT -16.5°C, Alt. 29.80", IAS 105 K, TAS 138 K, GS 187 K (49 K TW comp.)
MP=15.2", 2400 RPM, FF 6.0 GPH, EGT 1400°
DTG 312 NM, GPS ETA 1553
Photo taken at 14:50 ET at FL 200, GS 194 K,
IAS=102K, OAT -26°C, TAS 139 K, FF 6.0 GPH, (55 K TW comp.)
MP=13.5", 2500 RPM ( I elected to push the RPM up to 2500)
(yeah, I know, I was 75' too high when I took this shot...)
(FL 200 was 'by request', since it was the wrong altitude for the direction of flight,
also FL 180 was unusable due to the altimeter setting).
I became a bit of a "high-altitude-road-block" on the arrivals to Dulles, so Washington Center put me back down to
Flight Level 190.
Second photo taken approaching Elkins, WV at 15:01 ET at FL 190, GS 209 K,
OAT -23°C, 14.1" MP, 2400 RPM, FF 5.8 GPH
(did not record IAS, est. IAS 104 K), est. TAS 140 K
DTG 157 NM (landed at 15:54, :53 minutes later)
Started descent 90 NM out, for high-speed, efficient descent.
Total flight time was 3+57, from takeoff to landing average GS 168 K, burned 30.5 gallons, used 900 psi of my oxygen.
Driving the same time I would have only been just past Nashville...
What a cool plane!
Keep Building!
Rick Henry
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