CRP5 CAS to TAS and Mach Number 

Using the CRP5 to convert CAS to TAS and find Mach Number amongst other tips
-------------------------------Content Bookmarks-------------------------------------
0:00 - Intro
1:50 CAS to TAS
4:18 TAS to Mach Number
8:25 Cas to TAS over 300 kts
11:10 Compressibility Correction
13:58 Mach Number from TAS again
15:30 Mach Number when not given OAT
17:00 Temperature from TAS and Mach Number
19:07 Ram Rise Scale
21:12 Doing Conversions
23:21 1 US Gallon = 0.83 Imperial Gallons, I went wrong way round.
24:02 Fahrenheit to Centigrade or vice versa
24:50 Density Altitude
Please Note. When I did the US Gall to Imperial Gall, I should have said that 1 US Gall was .83 of an Imperial Gallon. Apologies.