X-Mozilla-Keys:                                                                                 

Mine is a PT-6A - 20 which is good for takeoff power
of  580 shp, and max cruise of 522.
a -41 or -42 is around 850-900hp.
A -61 is around 1600hp derated to, I believe, 900.
The -61 is just a bit longer than the -20, I can get
dia.& length if you need them.

Ratio is .0668-1 which is very close to 15-1.
Total weight of the engine is 275lbs.
I threw the miscellaneous parts on a scale, and if
everything is there, I have 23 lbs.

Archie

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