I thought in the case of magni, high stick forces were from the nose heavy rotors causing pitch stability and not wanting to change pitch/direction easily.
what about the other gyros, my question was not specifically on magnis ( I only mentioned magni as example) .
what about the difference btw monoseaters and tandems with extruded rotors ?
are they nose heavier you mean ?
do you mean that when you trim cable gets loose ( no trim at all) you have to push the stick to be able to dive steeper ?
I have flow many low profile gyros ( center of mass under the centre of thrust) in montelimar ( it is hot in summer , ultra windy and ultra turbulent) and by by far the magnis have been the more stable gyros I have flown, I flow autogyros, ela, and magnis
the only gyro I have tried approaching the magni pitch stability in turbulence is the xeeleex, but it is nearly ctl ..
one of my friends mounted aluminium extruded blades on the magni, (resisting the warnings of the hangar owner) , the result is that the controls are really softer as a matter of fact .
all of this is far beyond my capacity of understanding rotor dynamics principles ..
as a reply I would only dare to say say that avesro blades are not tail heavy, in my opinion they are less nose heavy then the magni ones but their center of lift is still behind the center of gravity making the blades try to pitch down under lifft
I wish I could remember but back then I was just learning it all. As I recall Greg said it had to to with the RTV. It's not just the blades in Greg's opinion. I know he sells them but if you read all he's written on gyro dynamics it is scientific. He may sell them because he really believe they are the best.As I understand it, (not sure if I'm correct) the Averso blades are more tail-heavy than the original ELA blades. Hence, the advancing blade twists back, increasing its effective angle of attack. To compensate for the higher dissymmetry of lift, the flapping angle automatically rises, and the pilot has to push the stick forward to compensate for that higher blowback angle. In cruise above 120-130 km/h, and in my ELA, I have to trim the gyro 'by hand', pushing the stick, because the pitch system hasn't enough amplitude.
The ELA hasn't a trim cable as the Magni, but a compressed air piston that tilts the rotor head forward...
I'm sure that the 'heavy stick' of the Magni is due to the blades, and not to the tightness of the control transmission, as I've heard from Magni people...
That is, in fact, the case. Magni asked Greg to represent them in the US because he understood the things that made Magnis different and thought that they were "a cut above" because of those things. He's pretty much retired and I know he doesn't really do it for the $. I understand he's retired as a CFI now, too, sadly.He may sell them because he really believes they are the best.
If you can still find his posts he spells it out where I believe today I would have understood more than back then.
Means the amount the rotor axis lags the control (rotorhead) axis. About the only time the rotor points the same way as the as the rotorhead is in a vertical descent.hi chuck , thanx a lot, but before I try to understand , could U explain what do you mean by rotor lag ?