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Allison TF41

allison-tf41-a-1b
Allison TF41-A-1B turbofan


The Allison TF41 (Company designations RB. 168-62 and Model 912) is a low-bypass turbofan engine jointly developed by Allison Engine Company and Rolls-Royce from the latter's RB.168-25R Spey. First run in 1967, Allison manufactured the TF41 under license, while Rolls-Royce supplied parts common to existing Speys. The TF41 was developed for use in the LTV A-7D Corsair II for the USAF, and the US Navy's A-7E. Between 1968 and 1983, a total of 1,440 TF41s were delivered.

 

allison-tf41
TF41 of a U.S. Navy A-7E-4-CV



Applications
LTV A-7 Corsair II (USAF -D and US Navy -E models)

Specifications:
TF41-A-1

Type: Turbofan
Compressor: Three-stage LP compressor, two-stage IP compressor (both driven by LP turbine),11-stage HP compressor
Combustors: Cannular combustor with ten flame tubes
Turbine: Two-stage LP, Two-stage HP
Maximum thrust: 14,250 lb
Overall pressure ratio: 20:1
Bypass ratio: 0.77:1

 

 


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