Tayyar MTH-3 Ra'ad

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MTH-3 Ra'ad
Mth-3.png
Type Low-bypass turbofan
National origin  Riysa
Manufacturer Tayyar Engine Design Bureau
First run 1978
Major applications TaH-26 Saika
Status In production
Produced 1984 - Present

The Tayyar MTH-3 "Ra'ad" (رعد, Thunder) is a Riysian triple-spool low-bypass afterburning turbofan engine, designed by Tayyar to power the TaH-26B deep modernization of the TaH-26 Saika interceptor. It was first flown on a TaH-26A testbed in 1978, and entered full scale production in 1984. Uniquely, it is the only Riysian triple-spool fighter engine, the only triple-spool engine designed by Tayyar, and one of only a few turbofan engines designed for high-altitude supersonic performance.

History

Development of the Ra'ad started in 1975, shortly after the TaH-26A, with its older Tayyar MTH-Kh turbojet engines, had entered service. The MTH-Kh provided superb high-altitude and high-speed performance, allowing the TaH-26 to exceed Mach 3 in ideal conditions, but was overly optimized for that role, leading to extremely poor low-level efficiency and power.

Design

The Ra'ad is a triple-spool turbofan with a relatively high bypass ratio - for a fighter engine - of 0.54, featuring a single-stage low-pressure compressor, six-stage intermediate compressor, annular combustor, single high-pressure turbine, single intermediate-pressure turbine, and twin-stage low-pressure turbine.

Much like the MTH-Kh it replaced,

Variants

Performance