reported earlier Main rotor disk tilts when not spinning and animation for blade tilt seems wrong

[Jester2138]

See image. My understanding is that the disk would only tilt when there are aerodynamic forces from the spinning blades producing lift to tilt the disk. It can't tilt just sitting on the ground not spinning.

Additionally, the blades seem to be articulated up down mechanically instead of just flexing. IIRC (can't seem to find this on the internet so I'm going off memory) the Apache is a rigid rotor system and the blades can only flex, not hinge like they're animated in DCS.

Am I correct?

Edited March 23, 2022 by Jester2138

[comcat]

Well: it's not correct the way it is in DCS but I think it's not an issue especially in terms of frame rate which I think is more important than a static rotor movement.

IRL: the rotor disc never tilts when not spinning. In all rotor systems you can only see the angle of attack changing with input controls on a stopped rotor

only when the disc is spinning we get the impression that it tilts, because more lift is generated in different areas of the disc.

 

Again: i don't think this is a bug, more like a cosmetic thing.

[Frederf]

Fully-articulated only means that the blades are free to move in 3 axes: lead-lag, flap, and twist. The hydraulic control at zero rotor RPM should only twist the blades. Any movement in the other two axes is only due to other forces like aerodynamic ones which are no present at zero RPM.

Each blade is only connected to the swashplate by actuator rods. Increasing collective or changing cyclic is the same thing as far an individual blade is concerned. But you see in DCS that collective increase twists the blade without flap while cyclic motion of the same rod in the same way results in the blade flapping. I cannot find the physical mechanism that would cause the blade root to behave differently with the same rod movement.

[BIGNEWY]

this has already been reported but thank you.