How many stages of compression does the JT15D turbine engine have?
Single-Stage Fan and Two-Stage Axial Compressor: The JT15D series uses a simplified configuration with a single-stage fan and a two-stage axial compressor, making the engine both compact and powerful. The JT15D-1 has a single-stage midspan- supported fan consisting of 28 titanium blades dovetailed to a forged titanium disc. Bypass ratio is 2.