Hi,
I am at Oxford OAA doing an MCC/JOC (great experience here by the way) and we flew yesterday on the sim (B737-400) with one engine out and rudder trim to control the aircraft (we put the ball in the center again only with rudder trim).
We were flying on a radial 180° outbound when we got a right engine failure. Then the instructor told us to level the wings, center the ball with the rudder trim, and to maintain a heading of 180°, maintaining the wings level. I then thought the aircraft would be drifting in the direction of the dead engine. But it did not and I don't understand why. The aircraft maintained a heading of 180° and stayed on the radial without drifting.
However if you have a look at the following picture I just drew,
http://cours-de-math.eu/jet-asymmetric-flight.jpg
It is clear that if you control the aircraft only with the rudder and if you don't bank towards the dead engine to balance the F2 force due to the rudder, you drift !
Don't you agree ?
Am I missing something ?
I drew another sketch with banking to show the effect of bank in asymmetric flight, have a look:
http://cours-de-math.eu/jet-asymmetric-flight-bank.jpg
Do you agree with my sketch ?
Thank you for your help.