Originally Posted by
peekay4
I found the FCTM wording in Chapter 1 General:
Conditions Affecting Maneuver Margins
For a fixed weight and altitude, maneuver margin to stick shaker increases when airspeed increases. Other factors may or may not affect maneuver margin:
•Gross weight: generally maneuver margin decreases as gross weight increases
•Altitude: generally maneuver margin decreases with increasing altitude for a fixed airspeed
•Temperature: the effect of a temperature change on maneuver margin is negligible
•Landing gear: a small decrease in maneuver margin may occur when the landing gear is extended. This loss is equivalent to 2 knots of airspeed or less
•Speedbrakes: generally maneuver margin decreases when speedbrakes are extended
•Engine failure during flap rectraction: a small decrease in maneuver margin occurs due to the reduced lift experienced with the loss of thrust. The loss is equivalent to 4 knots of airspeed or less
Notice the 4 knot loss of maneuver margin is only for engine failure during flap retraction.
These items are listed for the 747-8. For some reason, only the first one is listed for the 747-400.