§-Quick questions
NSWEngineering StudiesAeronautical Engineering
Quick questions on Jet engine fundamentals: HSC Engineering Studies Aeronautical Engineering
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is components of a turbofan?Show answer
A modern high-bypass turbofan (Rolls-Royce Trent 1000, GE GEnx, Pratt and Whitney PW1100G) has:
What is bypass ratio?Show answer
The bypass ratio (BPR) is the ratio of mass flow through the fan duct (cold bypass air) to mass flow through the core:
What is rolls-Royce Trent 1000 on Qantas 787?Show answer
Qantas's Boeing 787-9 fleet uses the Trent 1000 (option) or the GEnx-1B (alternative). Each engine produces about 50 kN of cruise thrust, balanced against the 1 MN takeoff requirement during full-power climb.
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