Hi Jimbop,
Thanks for the new video, Level bombing here I come!
Just one question, I've been playing with my Kane Dead Reconing Computer (a very dangerous thing for a dyslexic person to do!) and was wondering how you came about geting your TAS? What temperature did you use?
Setting it up with a 200mph IAS and a 190 TAS I came to a Outside air temp of about -40 C
(By the way I'm not trolling here just trying to get my head around things

)
In my calculations without a thermometer, taking OAT as 9C (15C - 6C due to temperature lapse) and a IAS of 200 I came to a TAS of ~208mph
Cheers and thanks for the video!