Calculator @ YSBK and TAS calc?
Hi guys,
I'm studying for flight planning too.
I am curious as to what the current calculator being supplied to candidates at YSBK centre? If anyone has done and exam there recently please reply.
Also what is the fastest method people have found to determine TAS at a given FL, M and ISA var?
Method 1 - look up ISA OAT against FL @ 0.0M on page 3-106... then
Sqrt of (273 - OAT{at given FL from page 3-106} + or - ISA var x 39 x M) -1= TAS
or
Method 2 - Straight through using calculator and ISA temp decrease of -1.98 degrees/1000'
1.98 x FL (+/- key)= 'negative figure'
then
Sqrt ('negative figure' + 15 + or - ISA var + 273) 39 x M -1 = TAS
Also what accuracy are we looking for in TAS AFT notes suggest +or - 1kt will suffice and anyone with high mark concur?
Cheers
YCOY