Gyroscopic figure
A gyroscopic figure is an aerobatic maneuver that is not only created by aerodynamic forces acting on the rudder, but also in which the movement of the aircraft is based to a substantial extent on the gyroscopic effects of the rotating masses of the propeller and crankshaft . Typical gyroscopic figures are the lomcovák or the tumble.
procedure
Gyroscopic figures are initiated at a relatively slow speed by initially turning the aircraft drastically from the direction of flight using aerodynamic control inputs. As a result, a gyroscopic torque is generated perpendicular to the selected axis of rotation through the rotating masses of the propeller and crankshaft. In heavily motorized but very light aerobatic machines such as the Pitts Special or Extra 300, this moment can be strong enough to turn the aircraft completely with the tail unit (tail end) first - which would not be possible with purely aerodynamic control.
Gyroscopic figures are terminated by releasing the throttle (which greatly reduces the gyroscopic torque) and bringing the rudders into neutral. Gyroscopic figures put a lot of stress on engine components such as the crankshaft and the engine mount and may therefore only be flown with high-performance aerobatic planes designed for this purpose.
history
The first gyroscopic figures were probably flown by Ladislav Bezak, who is considered to be the inventor of Lomcovák. He won the aerobatic world championship in 1960 in Bratislava on a Zlin Z-526 .
See also
literature
- Neil Williams: Aerobatics , The Crowood Press, ISBN 978-0-9504543-0-6
- Alan Charles Cassidy: Better Aerobatics , Freestyle Aviation Books, ISBN 978-0-9544814-0-7
Web links
- Training video for gyroscopic aerobatic maneuvers
- impressive video with various gyroscopic maneuvers
- a trouble from a pilot's point of view
- Lomcevak training video for model airplanes
- Explanation of Lomcevaks maneuvers with a Pitts Special
Individual evidence
Simple aerobatics: Chandelle | Lazy Eight | Looping | Spin | Turn
Advanced figures: downturn | Barrel roll | cracked role | controlled role | Humpty Bump | Immelmann | Loopingacht (Cuban eight) | Male (Tail-Slide) | Knife flight | Role circle | Inverted flight | Back circle
Special maneuvers: Autumn maneuvers | Cobra maneuvers | Kulbit | Lomcovák | Torquing | Zwirbelturm