Originally Posted by
FlightDetent
Accelerate to Vr, then pitch up to the unstick attitude and the aircraft gets airborne dozens meters further, at Vlf. From the lift-off, the trajectory continues until 35' height still accelerating to reach V2 concurrently. Now, the geometrical half-way point (equidistant) between getting airborne at Vlf and 35' with V2 must be still inside the paved and designated TORA (TOR<=TORA). That would be applicable for dry runway take-off with 1 ENG inop on a twin, derived from TOR definition JAR 25.113 Subpart B.
By this regulation, for all-engine ops, the distance from the start of the run to that half-way point is extended by 15% to yield the take-off run (TOR). You couldn't do that with the flight in the video and still be within TORA. Was that "required or expected performance during take-off"?
P.S.: JAR 25.113 is CS 25.113 now. It still says the same as FAR 25.113.