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eriknorth said:I'm having a hard time understanding the difference in engine types. I hear people talking about them, but sometimes I just get confused. Could someone simplify for me how turbine, turbofan, turbojet, and turboprop are related?
LR25 said:You know there has always has to be someone to contradict you.
Really though, the 707 and DC-9 types actually had meduim/ low bypass turbofan. Pratt & Whitney JT3's (707) and JT8's(DC-9).
I believe there was an engine on some 707's and DC-8's that were actuall turbojets. I think there were called Conways's, not sure which one it was, some had JT4's, which I'm not sure if that was a turbojet either.
But like I said, I aint trying to bust your chops on the little stuff.
The big difference is this:
Turboprops fly at lower altitudes than jets, which causes them to pay less. If anyone could invent a real high-altutude turboprop, we could finally get regional pay where it belongs.
Turbojet engines are the preferred engine for military pilots and freight pilots in third-world countries. Also for corporate pilots who like to make noisy takeoffs.
Turbofan engines pay best and are somewhat quieter, allowing the pilots to discuss such issues as union contracts and gate agent attractiveness.
Low bypass fans are used by junior pilots until they have enough skill to handle the high bypass aircraft.
High bypass engines are larger in diameter. This originally was done to impress female passengers, but it was discovered after the fact that they were more efficient and quieter. The sad fact is that REALLY high bypass engines are essentially big ducted turboprops. No one has heart to tell this to the crews of these aircraft, however. Too cruel.
Stick with piston engines - much less confusing.
FlyChicaga said:Hahaha 100LL, funny stuff.
Saab 2000? It can get up to FL310. Maybe the Bombardier Q400 can get to a similar altitude?