Wind limits
R22/R44 start up/ shut down limits,
I have seen it in the POH, either in the safety notices or as a CAA supplement, limit is 26Kts i think. The best wind position to avoid a tailboom strike is to have the wind at 10 - 11 o'clock which means you have the blade rising on the left side of the A/C and at a high point as it goes over the tailboom and falling on the right side and at a low point as it passes the nose.
Regards BC