For BOAC
FLAPS 10 SPEED 160 GEAR UP on 737CL?
That is wrong due to crossover speed.
FLAPS 10 maneuvering speed is 170.
Although the FCTM states "adequate maneuver margin is retained at a speed 20 knts below the recommended speed for all bnk angles up to 30°". This margin is just on the stall speed. It doesnt consider the crossover speed.
Thatīs why Boeing issued 3rd December 1999 an OMB with tables for revise Boeing Recommended Maneuvering speeds. And Boeing states on that OMB "Block speeds changes are required for 737-300/400/500 flaps 5 and flaps 10. For all other flap positions, the crossover speed is below the Block Speed, and a maneuvering airspeed adjustment is not required".
Rgrds