A New Generation of Allison Model 250 Engines

[+] Author and Article Information
J. A. Byrd

Allison Gas Turbine Operations, Indianapolis, Ind. 46206

J. Eng. Gas Turbines Power 106(3), 703-711 (Jul 01, 1984) (9 pages) doi:10.1115/1.3239627 History: Received January 18, 1984; Online October 15, 2009


Allison is actively developing two new additions to the Model 250 product line, the C34 and C24 engines, targeted for mid-1980s production. The C34 engine is a growth version of the Model 250-C30 and will provide a 10 percent power increase throughout the flight envelope. The C24 engine features decreased fuel consumption, one-engine-inoperative (OEI) ratings, and substantial increases in hot day performance compared to its predecessor, the highly successful C20B. Both engines incorporate single-stage turbines, digital electronic control units, and new shafting arrangements and are designed for increased reliability and durability, reduced complexity and part count, less maintenance, and decreased operating costs.

Copyright © 1984 by ASME
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