Mach V formula
OK...I'm listing this here because you guys are more likely to have the info at your fingertips...or have sat the exams recently enough to remember the formula...
When I did my exams 20 years ago ( UK ) we had to know the formula to calculate Mach speed... my brain has suffered over the years ( Beer ) and although I thought that I still remembered it apparantly I've got it wrong....
My obviously mistaken formula was: TAS/LSS.... LSS calculated by: 38.94 x square root of K ( K I thought was -472 or something close....
Anyone out there that can help ?