Posted by MarkB_MI on December 05, 2009 at 04:06:41 from (166.217.235.247):
In Reply to: Turbine posted by Doug - Iowa on December 04, 2009 at 18:10:35:
Specific fuel consumption on gas turbines is terrible. Turboprop aircraft are able to recover the thrust generated by the exhaust, not so with autos: they don't go fast enough. The main reason aircraft have switched to turbines was the maintenance costs of big recip engines. The Lockheed Super Constellation had great fuel consumption with its turbo-compound engines, but they were maintenance nightmares.
Back in the late sixties Bill Lear experimented with STEAM turbines in autos. That had more promise than gas turbines because steam turbines have great low-end torque and good fuel consumption.
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