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Apr 28, 2017, 01:10 AM
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Discussion

Here is mine ...... Pitcairn


Hello
Almost finished
Got to choose brushless motor ,propeller, batteries : informations welcome .....
And can someone give me travels on ailerons , and elevator ?
I read somewhere ailerons are not very efficient so do I set them at maximum ?
I think rudder travel at maximum possible ...
Thanks
Andre
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Apr 28, 2017, 04:08 AM
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britinoz's Avatar
Andre...That's one fine looking model you have there ....good luck with your test flight.
Happy Landings
Chris...
Apr 29, 2017, 09:59 PM
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great looking model, set your control throws to the maximum limits, a spinning rotor is an unstable device.
May 02, 2017, 03:20 AM
Registered User
Hi
I centered the motor on the firewall .... That is to say the motor is 1,3 cm lower than the plan says.
I try to understand the consequencies: I think the autogyro will have a more pitching atitude ....!
Am I right or ...?
Must I change the angle of rotor to compensate this ?
Will some down trim on elevator help ?
What size propeller do you use ? I think about using 15X6 ...
Information welcome before I maiden ....!
THANKS
Andre
May 02, 2017, 09:04 PM
Registered User
Hi andre is this a kit or did you scratch build it. If you scratch built a good ballpark is 10 degrees of motor down thrust, 8 degrees of rotor tilt back, and a 15 degree hang angle measured from the fuselage. This is all just ballpark figures that I have came up with so take it with a grain of salt.
May 03, 2017, 04:09 PM
It's all in the Blades!
SafeLandings's Avatar
Andre,
Nice Pitcairn I believe all the info is on the plan, but if memory serves me correctly start out with around 5 degrees rearward tilt and about 18 degrees hang angle. Do hops in the normal way and trim between each, dont trim roll with the ailerons, if its needed add packing shims to the gearbox.
You will need full aileron deflection, as the speed drops off in the air they become less responsive so rudder has to be used which works really effectively.
It took me a while to get my head around the wing as it gives you a false impression that its going to tip stall at low speeds which it wont.

Just take it one step at a time in the trimming process and you will be rewarded with a great flying model that is a pussycat to fly

Rich


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