Find Pressure ratio,
Delta at sea level is 29.29”/ 29.92” = .978944
Find Temperature Ratio,
19C =66.2 F
Theta = T/To at sea level , where T = Actual Temperature in deg K or Deg R and To = Standard sea level Temperature in deg R or deg R.
At altitude Theta = (66.2F + 460R)/(59F + 460R) = 1.01387
Find Density ratio,
Sigma = Delta / Theta = .965552
Find Standard Means Of Evaluation:
SMOE = 1/SQRT(sigma) = 1.01768
Hurricane Mk I sea level TAS @ standard conditions = 263mph TAS = 263mphEAS
Under game atmospheric conditions with a standard lapse rate:
263mphEAS * 1.01768 = 268mphTAS @ Game Sea Level
The Hurricane Mk I should be in the vicinity of 268mphTAS at sea level in the game under the atmospheric conditions recorded.
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