If you remember one thing about Loaded Riser Twist, it should be:
- At liftoff, if the wing is leaning right, your body will tend to twist left.
- Thrust will push your body more left, aggravating torque twisting effects
It isn’t related to torque directly but it contributes to many torque-related crashes. It is that, when the wing goes right, the motor wants to yaw left and vice versa. It aggravates the normal problems since, if during liftoff the motor yaws you left, thrust will then push you left relative to the wing which goes to the right. As the wing goes right, the left riser stays loaded while the right riser unloads and your body twists around the loaded left riser, causing even more left yaw.
You can see this clearly in Master PPG 2 (it’s explained through both animation and live action). Here’s another video where you can see these effects. In each case the wing goes one way, aggravating the pilot’s twist the other way. This is why, on belt driven machines that you’re not completely familiar with, you should:
- Takeoff with partial power (as your situation allows) then ease into full power once up 25 feet),
- Get the wing slightly left before lifting off (to the right for geared machines).
- If you feel excessive twisting ease back on the power.
- Once at a safe altitude, go to idle then ease into full power while looking up at the wing to see how much twist the machine has normally.