Cessna CH-1 / YH-41 "Seneca"
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Lee Rilea, e-mail, 06.01.2021 02:20

I am building a model of this bird. Any photos would be much appreciated, especially cockpit and engine


Jim Cavanagh, e-mail, 12.07.2016 22:31

Could anyone help me fid the Email address for Greg Paige (Above) who is restoring a Cessna Ch-1A. Clicking on his Email did nothing. Doing a bit of research on this aircraft.
Thanks.


Rob Ransone, e-mail, 31.12.2010 18:38

I was the flight test engineer at the AFFTC, Edwards AFB, CA, on the USAF stability & control reevaluation of YH-41 S/N 4244, flown between Oct '61 and May 62. The engine was a Continental FSO-526 supercharged reciprocating engine de-rated to 270 HP. Previous Army flight tests showed the aircraft to have a severe left roll and yaw during a throttle chop. This was completely eliminated by the addition of an automatic input to the lateral control system from an engine power sensing device called the engine power trim. The helicopter also had a leaf-spring roll rate damper. We also tested various configurations of this mechanical gyro and its effect upon stability and control. The single rotor had a shock absorber mounted between the rotor blade roots to dampen blade weaving. On one flight at 5000 ft., after a throttle chop, upon recovery we experienced severe vibrations. Bob Baldwin, the test pilot, declared an emergency and immediate return to base. I opened the access panel to the engine to transmission drive shaft, and saw that it was vibrating about 3-inches amplitude, and advices Bob to set down immediately, which he did. Vibration calmed during the autorotation descent, but developed to +3/-2 gs during the landing flare. The shock absorber had frozen and broke one attachment fitting. The shock absorber unbalanced the main rotor. The stability and control was now acceptable, but turbine-powered helicopters then provided much better performance and simpler maintenance, so the line was terminated.


David Hatcher, e-mail, 14.12.2010 03:13

To Greg Paige: interested in knowing about the existence of the #1 bell and #1 hughes. Didn't know if they existed let alone being restored. Please email with any info to david.hatcher2@us.army.mil


Mark Shelly, e-mail, 15.11.2010 00:43

I have a mint condition CH1-C Instrument Flight Familiarization Handbook, published by Cessna Aircraft Company, Military Division, Wichita, Kansas. What is this worth?


Greg Paige, e-mail, 29.09.2010 00:03

This is truly a beautiful air craft and I'm very fortunate to be restoring one with a friend of mine for his personal museum.It will look really nice sitting next to the #1 Bell and the number#1 hughes


Rodolfo, e-mail, 20.08.2010 01:48

can you send to me more about this helicopter,fotos for exemple.-.
Thank


mike montagne, e-mail, 10.03.2010 21:07

A very good looking helicopter, too bad the Allison 250 gas turbine was'nt available to at the time.
This helicopter would have probly out lasted the Jet ranger,
and think of the ease of maintenance!


Steve Remington, e-mail, 17.04.2008 06:13

Check out www.collectair.com/cessna.html for a history of the CH-1 program.


Walter Lasher, e-mail, 12.03.2008 04:30

I took a 8mm movie of one of these landing at the Seattle Worlds Fair in 1962. The first and only one I had ever saw.
Still have the movie.




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