I used formula
TAS = IAS + (2/100) X IAS X (PA/1000)
to manually calculate value. All problems that I solved using this formula tallied with values that I get from my electronic E6B as well as Mechanical E6B except one example below
IAS = 97 Kts FL 75 OAT -75 Calculate TAS.
Now answer to this
– From mechanical E6B is 106
– From electronic E6B is 105
– Using formula above 111.5
So am I missing anything in above formula? This formula doesn’t take into account OAT is that a reason? What is the correct formula in that case?
Thanks