Razor
24th Jun 2003, 07:37
Has anyone got a quick method for working out crossing time of opposite direction traffic based on estimates?
I heard of a method using the wizzwheel once but can't remember it...:confused:
Intruder
24th Jun 2003, 11:18
Using Mach, your Mach number in tenths approx = miles/minute: Mach 0.75 = 7.5 NM/min.
Two head-on aircraft at .75 - .80 will be closing at 15-16 NM/min. With an average detection range of 7 NM, you have 30 seconds or so after visual acquisition. With a nominal 20 NM TCAS display range, you have 1:15 - 1:20 after first display.
OzExpat
24th Jun 2003, 16:07
Hey there Razor... does this question mean that they're finally gunna give you yer own aeroplane? :ok: