On Tue, 18 Oct 2005 23:29:51 GMT, "Mortimer Schnerd, RN"
wrote:

If you look at a performance chart, you'll see that the highest true airspeed
for a normally aspirated aircraft is more likely to be around 6000 feet or so.

Not at full power.

If I look at charts that show a full throttle curve, what I see is that TAS
increases up to the maximum altitude that any particular power setting can
be achieved; after that it falls.

Full power can only be achieved at sea level.

At least for a Mooney Ovation 2, for which I happen to have available that
type of curve, it is very clear that maximum TAS is achieved at maximum
power at SL (about 193KTAS)

For 75% power, maximum TAS is achieved at 8000', which is the maximum
altitude that one can obtain 75% power (about 190KTAS).


Ron (EPM) (N5843Q, Mooney M20E) (CP, ASEL, ASES, IA)