kenbou

The animation of the rotor head is strange when the cyclic stick is moved. The top of the swashplate tilts in the opposite direction to the bottom. The cyclic pitch change of the main rotor is also reversed.

When I set the pedal's trimmer mode to central position mode, the delay disappeared and the yaw became stable. The problem of not being able to control it as I wanted was solved. I had left this aircraft alone for a while. I'm still concerned that it won't fly straight unless it's tilted significantly bank to the left, though.

Thank you. By using "Center Trim mode", the slow input of the cyclic control has been eliminated. However, the collective pitch and pedals still seem to be slow. When there is wind from the tail rotor outlet side, the helicopter's yaw becomes unstable, and I respond by making small, relatively fast inputs to the pedals. I've never flown a helicopter like the Apache, but I also make relatively fast, small inputs to the pedals to maintain direction during lift-off or in a crosswind.

What I felt was similar to turning off the hydraulic switch on a DCS Huey. Even if you set the control input to zero or in the opposite direction, the result of the actual input is reflected a short time later. If you move the stick or pedals quickly, the actual input is different from the intended amount and direction, which makes it very difficult to control. I noticed this when I displayed the controls indicator.

I know after 90 degrees. I'm looking at the speed at which the main rotor tilts. For example, referring to this video, what I want to say is This is the frequency of precession when a torque perpendicular to the axis of rotation is applied. The higher the torque and the lower the mass or rotation, the higher the frequency. Compared to applying torque to a non-rotating object, When a torque is applied to a rotating body in a direction perpendicular to the rotation axis, If the torque is the same, it will tilt slowly. Non-rotating and rotating https://www.youtube.com/watch?v=XPUuF_dECVI&t=1455s https://www.youtube.com/watch?v=XPUuF_dECVI&t=2150s Does the DCS AH-64D have a rotor that tilts like this?

thank you for your reply. If it is not appropriate to compare it with the Huey, which has a very different rotor head, why not compare it with something like the MD500, which has agile characteristics but is not a DCS model. Set a cyclic pitch control movement amount sufficient to cancel out lift imbalance during movement such as when moving forward, If you are flying or hovering in a constant attitude with the lift imbalance resolved, the lift difference due to the additional cyclic pitch control will make the rotor disk feel like it is tilting too quickly. Rather than there being no delay, it feels like there is no gyroscopic effect due to the rotation of the rotor disk. I feel that the rotating body does not have any effect to counteract the tilt. I imagine that if you had an aircraft with rotor blades that were very light compared to the lift it produced, it would have such characteristics. Isn't there a gyro effect caused by the rotor?

Sorry for the machine translation. I will write my thoughts on the difficulty of operating this aircraft. The rotor disk or aircraft tilts too fast for cyclic pitch control. However, if you reduce the sensitivity of the joystick, you will not have enough stick travel to counteract the lift imbalance. Sufficient cyclic pitch change is necessary for lift imbalance, but When adding a cyclic pitch change from a lift balanced state, the rotor disk or aircraft tilts too quickly. It feels like there is no gyroscopic effect or damping effect due to the rotation of the rotor disk itself, or there is too little. Even considering that it is difficult to operate with a joystick that has a lower resolution and a shorter length than the cyclic stick of the actual aircraft, I feel that there is not enough damping. DCS UH-1H Huey etc. have this balance properly and do not have this difficulty.