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View Full Version : What are the differences between Free and Fixed Shaft ?


coolman775
10th May 2009, 15:21
What are the differences between Free and Fixed Shaft ?

smudgethecat
10th May 2009, 16:31
ffs, dont be so bone idle, do a search on the net, theres reams of good info.

The Deec
10th May 2009, 22:33
I guess the free shaft operates independently of T1 tubine which is connected to the compressor. This free shaft which operates via the T2 (which is a secondary turbine aft of T1 )is connected directly to the reduction gearbox which drives the prop.
As for the fixed shaft, compressor and turbine are both interlinked.

Clear as mud !

nodrama
12th May 2009, 08:29
A 'free shaft' is driven by a free power turbine. Basic gas turbine theory and design......try reading a few books on the subject.