06-06-2007, 08:13 PM
Yup, aborting a takeoff is a very tricky thing. Here's a page on "V1", which I understand to be the abort speed as well:
http://www.aeromech.usyd.edu.au/aero/perf/to/
Now, COMPUTING an exact V1 for the aircraft weight, availability of brakes/reversers, runway length, airport altitude, temperature, all that, is pretty tricky. But generally you rely on a table for V1 (i.e. the FMS "looks it up" based on a number of factors).

Post Edited ( 06-06-07 21:20 )
http://www.aeromech.usyd.edu.au/aero/perf/to/
Now, COMPUTING an exact V1 for the aircraft weight, availability of brakes/reversers, runway length, airport altitude, temperature, all that, is pretty tricky. But generally you rely on a table for V1 (i.e. the FMS "looks it up" based on a number of factors).

Post Edited ( 06-06-07 21:20 )
300,000 km/sec. Its not just a good idea, its the law.