henryk
Well-Known Member
pushers are stabilizing.
-f.e. Hiller Platform=
pushers are stabilizing.
Isn’t a jet a pusher?
I don´t think that this is valid for gyroplanesTractor props are destabilizing, pushers are stabilizing. That's one reason early flying wings that switched from props to jets had stability issues.
direct-drive Geiger motor??
Tractor gyroplanes are much more stable then pushers, PIO PPO are nearly nonexistent in early tractor designsTractor props are destabilizing, pushers are stabilizing. That's one reason early flying wings that switched from props to jets had stability issues.
It depends how close you are to the intake: they can literally suck you off your feet!Isn’t a jet a pusher?
-look=NEGATIVE Stability !=
Is this an opinion, or do you base this on actual data?Tractor props are destabilizing, pushers are stabilizing. That's one reason early flying wings that switched from props to jets had stability issues.
To understand it, you have to think that behind the prop the airflow is perpendicular to the prop"disc".Is this an opinion, or do you base this on actual data?
Is this meant as a joke?Tractor props are destabilizing, pushers are stabilizing. That's one reason early flying wings that switched from props to jets had stability issues.
Because since Igor Bensen developed his flying lawnchair in the 1950s, built from aluminum tubing and mostly materials available at the local hardware store, the industry has fixated on cheap and easy to build. Autogyros aren't as capable as helicopters or as efficient as fixed wings, but the idea that the average Joe or Jane could build one at home over the course of a few weekends, for not much money, was very appealing. Also, the motorcycle style wind-in-your-face-and-unobstructed-view-ahead feels like freedom.But why are the tractor gyros not very popular?
Maybe this gyro could be easily modified to electric...
My priority list;
First is true VTO [ not jump] and land
Second is slower min AS with better safty margine if the noise stops.
Third [ my dream] ground effect hover.
BTo understand it, you have to think that behind the prop the airflow is perpendicular to the prop"disc".
If the incoming air comes sideways, in front of the prop, the air flow changes it's direction passing through the prop, creating a yaw force.
For example: the incoming air comes from the left, the resulting force is right (Newton's law).
For the prop in front of CG (tractor) the airplane want's to go more right (destabilizing), but with the prop
in back of the CG (pusher) the same force pushes the back right, so the airplane goes left (stabilizing)
For jets, it is the position of the intake that has to be considered. So on old jets like the Sabre or Mig 15, with the intake in the nose, it was very destabilizing.
experimental placement of vortex generators along the forward fuselage sides.
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