Bleed Air Flow Ratio with Respect to Inlet Mass Flow Rate

Aircraft Type

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Single Engine, light aircraft

0.01

Single Engine, military trainers

0.015

Twin Engine, turboprops

0.015

Twin Engine, turbojets or fans

0.025

Jet Fighters, air-superiority

0.03

Jet Fighters, attack

0.04

Jet Transports, civil

0.03

Jet Transports, military

0.04