Hilico
....one thing I do know is that the rotor on the back isn't used for steering. (It's used for pointing the body of the helicopter, which isn't the same thing. Helicopters bank in the direction they want to turn in.)
Much like the wheels of a car aren't used for steering, but for pointing the body of said car.
Cars roll in the opposite direction that they want to turn.
Which design of those 2 (fenestron or NOTAR) does this fall into?
Hilico, a technique used in the military for v.low flying to prevent disc contacting ground is to 'drive' the aircraft around.
Used in a quick hover taxi situation such as recce mission movement around obs position or anti tank into/out of fire position. Typically when there is little cover, ie Canadian Plains.
Basically, the disc vector is maintained in the 12 o'clock and all turns are made with pedal. This prevents the disc being tilted enough left or right during a turn to contact the ground. Apart from any rising ground, the lowest point of the disc is always readily in view, straight ahead.
After all, we're only drivers/airframe!
