another terrible ATPL PoF question
sideways drift may be corrected by:
a) putting the tail rotor below a line which is normal to axis of the main rotor
b) desiging the control linkage so that the rotor disc will tilt when collective pitch is applied, the stick position not being affected
c) fitting delta-three hinges to the tail rotor
d) a tail stabiliser
answer?!
well, it isn't 'b', 'c', or 'd'. so it must be 'a' - ?
but 'a' is gibberish?!
help