"BDS" wrote in message
t...
"xerj" wrote

One is that I am pretty sure that for the same IAS (not TAS) at a higher
altitude, more power is required. However, one contributor to the thread
has
stated that this is not the case:-

Based on actual performance data for a Seneca II you are correct:

6000 ft
75% power (2400 rpm/32-in mp/26.3 gph)
IAS 157 kts
TAS 170 kts

16000 ft
75% power (2400 rpm/29.4-in mp/26.3 gph)
IAS 148 kts
TAS 187 kts


BDS


Thanks for the information.

Danny Deger