In General Aviation light twins, when landing in heavy crosswinds, what are some considerations to using asymmetric (or Split) throttles to induce a sideslip, to align the fuselage with the ground track and the runway centerline instead of rudder?
I was told that this technique allows the aircraft to track down the runway centerlines with fuselage aligned with the runway without as much bank angle into the crosswind as would be required with symmetric thrust using cross-controlled rudder and opposite aileron alone.
I was thinking that the need for bank into the crosswind is due to the need to compensate for the sideslip force (from the yaw due to downwind rudder) which would otherwise (without the bank) turn the aircraft downwind.
But it seems to me that using asymmetric thrust to induce the same sideslip would produce the same tendency to turn if the wings were not banked into the crosswind to compensate. Why not??
Isn't it in fact true that inducing the sideslip by using asymmetric power rather than by holding downwind rudder slightly increases the bank angle required to hold heading, because the (upwind) sideforce from the deflected rudder is removed from the picture?
