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KDR question - the effect on total drag resulting from changes in height
Carly created the topic: KDR question - the effect on total drag resulting from changes in height
I have the following KDR which I'm struggling to answer:
Effect of changes in flight conditions on total drag - Part 61 MOS Unit 1.3.2 CADA, 2.3.2 2.3.2 State the effect on total drag resulting from changes in IAS, aircraft weight and height.
I am confident in answering the effects from changes in IAS and Weight but I am unsure in regards to height, am I correct in saying that the total drag decreases with height due to the reduction in density?
I have tried to research online but have found conflicting and confusing information. Could someone help me out?!
bobtait replied the topic: KDR question - the effect on total drag resulting from changes in height
The total reaction and therefore lift and drag depend upon the IAS. For a given IAS the associated TAS will be higher if altitude increases. Therefore the same drag at high altitude will be accompanied by a higher TAS. It's really exactly the same argument when considering lift at high altitude.