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Old July 11th 03, 02:13 PM
James M. Knox
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Chris W wrote in news:riirgv0rbvpnmooht9f0f4h26k26so0vb7@
4ax.com:

...the same plane can maintain 156 knots TAS at 55% power at
the same 8000', what would the TAS be at 16,000' at 55% (it is my
understanding that 16,000' is the maximum altitude a naturally
aspirated engine can put out 55% power).


The 16K figure for 55% is not a given, as actual installation specifics can
make a big difference. But it's not an uncommon number.

Regardless, changing from 8000 to 16,000 at the same power setting would
raise the TAS by about 2 knots per 1000 feet, or from 156 knots TAS to 172
knots.

If the same plane had turbo normalizing that allowed it to run at
75% power at 18,000 ft what would the TAS be?


Same calculation. That would raise the 174 knots TAS at 8000 (75% power)
to 194 knots TAS at 18,000.

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James M. Knox
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