Abstract
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.
Published Version
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