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KS4 on the dyno.

K17 / K34 and KS4

KS4 on the dyno.

Postby j79guy on Wed Jan 21, 2009 7:57 pm

Picture of freshly overhauled KS4 unit, "on the pump". To meet acceptance, the engine has to make a minimum of 400 Ft/Lb of torque from "0" N2 Rpm, all the way up to 6000 Rpm. Yes, this one passed. (Made over 550 Ft/Lb.)
Essentially identical to 250-C20B, with the exception of an aluminum gearbox assembly, instead of the aircraft spec magnesium gearbox. (Dang pesky Exocet missiles ruined all the fun.)

Allison 250-KS4 test cell (2).jpg
Allison 250-KS4 test cell (2).jpg (93.99 KiB) Viewed 796 times
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