Somebody please tell me...

[brando]

Lock tail-wheel? Trimming the rudder only has an effect when you have enough speed (air over wing) to affect the control surfaces. Try a different method:

1. Lock tail-wheel
2. Start engines (Remember to use Select all Engines once they're both running)
3. Extend flaps as required.
4. Ease throttle(s) up to 60% and roll, holding the stick back to keep the tail wheel on the ground
5. Once you're rolling smooth ease the throttle(s) to 75% and push the stick forward to raise the tail. At this point you will need to correct any tendency to wander by using the rudder.
6 Keep easing the throttle(s) on until the plane lifts.