JonSu
Junior Member
I want to confess and repent.
I was very wrong about the landing gear of the tailwheel pulling gyroplane. believed (and declared) that the extension of the main landing gear of the gyroplane should be greater than that of the aircraft.
It was based on the study of the main landing gear of the late Cierva, Pitbull and LittleWing gyroplanes (up to 30 degrees).
This turned out to be a delusion. Autogyros should not differ in landing gear from an aircraft in any way.
Because while gyroplanes do not jump and they need a take-off run, and sometimes a run when the take-off is stopped, the more the main landing gear is moved forward, the more its movement along the strip is unstable.
The propeller thrust does not stabilize the apparatus, because its vector always passes (when viewed from above) through the c.m.
In addition, a gyroplane is usually shorter than an airplane and the rotor creates a tipping moment on takeoff and puts even more stress on the rear wheel.
Offset over 16 degrees of the main landing gear (typical for aircraft with a tail support) - complicates takeoff and requires more skill from the pilot (more pedaling).
Less overhang - places strong restrictions on the application of the brakes when stopping takeoff.
Based on this, I ask you to consider my autogyro project "raw" and, if someone does it, be prepared for difficulties in mastering takeoffs.
Best regards, Eugene.
PS. I agree with this picture:
I was very wrong about the landing gear of the tailwheel pulling gyroplane. believed (and declared) that the extension of the main landing gear of the gyroplane should be greater than that of the aircraft.
It was based on the study of the main landing gear of the late Cierva, Pitbull and LittleWing gyroplanes (up to 30 degrees).
This turned out to be a delusion. Autogyros should not differ in landing gear from an aircraft in any way.
Because while gyroplanes do not jump and they need a take-off run, and sometimes a run when the take-off is stopped, the more the main landing gear is moved forward, the more its movement along the strip is unstable.
The propeller thrust does not stabilize the apparatus, because its vector always passes (when viewed from above) through the c.m.
In addition, a gyroplane is usually shorter than an airplane and the rotor creates a tipping moment on takeoff and puts even more stress on the rear wheel.
Offset over 16 degrees of the main landing gear (typical for aircraft with a tail support) - complicates takeoff and requires more skill from the pilot (more pedaling).
Less overhang - places strong restrictions on the application of the brakes when stopping takeoff.
Based on this, I ask you to consider my autogyro project "raw" and, if someone does it, be prepared for difficulties in mastering takeoffs.
Best regards, Eugene.
PS. I agree with this picture: