I think there is some confusion possibly caused by my initial post as to what I'm asking.
It has nothing to do with 250 below ten.
Nothing to do with levelling in VNAV
( I can see why you thought that though.)
??? - what is it at then?
when you push N1 it selects climb thrust.
BOAC I appologise for the confusion, i am talking about after N1 has be asked for at 1000ft , they ask for "level change ...knots"
It does not change the thrust setting, has nothing to do with Vnav, so why ask for level change .....knots, why not just ask for the speed?