demonstration video – https://youtu.be/JyTF_EHc5nU
G: Rotated the tail rotor to the correct position so that it actually works and can help with Yaw properly. Do not stage the engines; instead use AcG2 which will simultaneously toggle on the main rotor lock. That way you’ll know that when you detoggle the Junos the rotor will be free.
A stock aircraft called Heli_173_01g. Built with 46 of the finest parts, its root part is Mark2Cockpit.
Built in the SPH in KSP version 1.7.3.