Originally Posted by
WhiteKnight
How do you know that you are still good without doing the calculation again. You could be field length limited. i don’t understand how you can possibly know? What about when youchange the temp from 20 to 35 degrees? Is it still good, where is the limit?
Ah, in your case the limit is 75 degrees. You've calculated numbers that say at your planned weight the aircraft will meet all the TO and climb performance requirements up to an OAT of 75 degrees. Since the OAT is less than 75 the aircraft will actually perform a bit better than it would on a 75 degree day.