Abort Take-Off

[Ceemosp]

Good point and badly phrase by me

I over-simplified the explanation. You are totally correct about the 35ft Now that you started to explain, let's go the full nine yards

Let's have a look what the books say:

V2 - the minimum safe speed in the second segment of a climb following an engine failure. Also called takeoff screen speed and sometimes, takeoff
safety speed, although as the second climb segment indicates, V2 is an after takeoff speed frequently achieved shortly after rotate (Vr) as the
aircraft accelerates. The engine failure case that is taken in the calculation of V2 is that of the "most adverse engine" because the effects of
different engines when failed, differ. The calculation of V2 also includes set margins over the stall and other safety factors are built in as well.

So i SHOULD have said - the speed an aircraft will become and REMAIN airborne in case of an engine failure.

As a single engine plane can't continue the takeoff with an INOP engine - logically there can't be no V2 speed for them.

VR - rotation speed. The speed of an aircraft at which the pilot initiates rotation to obtain the scheduled takeoff performance.

The ability to rotate an aircraft does NOT automatically imply you have enough lift for climbout. This is only generated by the increased acceleration
and the now different AoA.
This is nicely demonstrated in the over-rotation tests, when the plane's nose gets raised to the point where the tail hits the ground and is then
dragged along the runway until the aircraft becomes airborne.

Rotation and climb-out speeds are two pair of shoes.

I think we now have this lined out entirely

http://adg.stanford.edu/aa241/performance/FAR105.html <- for those really wanting to get lost


regards
Carsten
Team 68301 - Derek's Wish