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Old January 2nd 04, 02:28 AM
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On Thu, 01 Jan 2004 16:25:57 GMT, "Mike Rapoport"
wrote:

If it had more compressor capacity then we would want a larger turbine for
more power. The real question is how high do you want to go in an
unpreasurized airplane?


Now you're confusing me. I don't expect any turboprop airplane to run
out of poop in the low teens. Max rated thermo hp isn't the issue,
it's running out of it before getting to an altitude where acceptable
gains in true airspeed are made.

The real question is how much power is available and the specific fuel
consumption in let's say between 9,000-15,000 msl.

Again, unless they've made some big changes in the powerplant, you
don't need to worry about getting too "high" unpressurised.

TC


You're a turbine guy, you should be familiar with the effects/affects
of altitude with respect to turbine temp and available power produced
at altitude.

Unless things have changed one heckuva lot since I researched one for
a customer, the turbine A36 needs one heckuva lot more compressor.

TC