2007-10-07 00:16:35 · 12 answers · asked by dragontamer_lance 2 in Cars & Transportation ➔ Aircraft
Piston engines have a lot of little quirks in them. They are heavier, require warm up period, have more vibrations (hence more subject to failures) and burn high octane gasoline, which is far more expensive than jet fuel. And they cannot propel you as fast as a jet engine.
The turbofan is a more efficient version of the turbojet, it uses less fuel and is quieter for the same thrust than a pure turbojet.
2007-10-07 08:22:02 · answer #1 · answered by Vincent G 7 · 0⤊ 0⤋
eferrell01 is correct in his answer “None superseded the other, because many are still manufactured and in service. The horizontally opposed engines followed the radial, in civilian applications, while V type engines followed in military aircraft. Following those are the turbo-props. Each has it's own applications and will have for a long time.”
And to follow-on the only reason the military went to turbines was the horsepower requirement. Turbines can produce more horsepower per pound then an internal combustion powerplants, which the military needed. And engine manufactures had built radials engines as big as they could and still could not get the h.p. requirment The application is what made the change that is why we have the B-52 and not the B-36. If you have watched on PBS the Air Power series you would see and understand the change aircraft got bigger and needed more h.p. in smaller packages.
2007-10-07 10:44:30 · answer #2 · answered by stacheair 4 · 0⤊ 0⤋
Well turbine engines can produce more thrust than radial engines. The the thrust limitations and fact that a propellor is required with a radial engine limits the top speed of the aircraft. I don't know if the larger cargo transports of today would be capable of flying with out some type of turbine engine. Even the one's with propellers use turboprop engines.
Turbojets can produce more thrust than turbofan engines, but consume much more fuel. Most modern fighters use turbofans with very low bypass ratios maybe .2-1 (cool air mixing with hot air) while commercial aircraft have very high bypass ratio maybe 6-11.
2007-10-07 11:08:00 · answer #3 · answered by just me 2 · 0⤊ 0⤋
None superseded the other, because many are still manufactured and in service. The horizontally opposed engines followed the radial, in civilian applications, while V type engines followed in military aircraft. Following those are the turbo-props.
Each has it's own applications and will have for a long time.
2007-10-07 08:52:49 · answer #4 · answered by eferrell01 7 · 0⤊ 0⤋
Radial engines operated propellers, which were not as efficient in pushing air as the turbojet.
A turbojet operates with multiple fans with ducted blades, so more air is pushed through, then the air is heated up so it goes faster with jet fuel.
Turbofans had a big fan in front of a turbojet, so more air was pushed through with more inertia.
2007-10-07 00:45:48 · answer #5 · answered by Anonymous · 0⤊ 0⤋
The turbine engine is lighter and produces more power than a radial engine. It is also easier and cheaper to maintain.
The turbo-fan is just a more efficient (and quieter) version of the turbo-jet engine.
2007-10-07 05:28:43 · answer #6 · answered by JetDoc 7 · 2⤊ 0⤋
Progress. Same reason the Internal combustion engine replaced the horse
2007-10-07 08:41:28 · answer #7 · answered by walt554 5 · 0⤊ 0⤋
the whole engine is called a jet engine because because it is made up of a turbine, turbofan, and a compressor. So it is is still a jet
2016-04-07 08:55:12 · answer #8 · answered by Anonymous · 0⤊ 0⤋
It's called Evolution
2007-10-07 00:47:11 · answer #9 · answered by shufly 4 · 1⤊ 0⤋
They haven't in ALL applications. Each is still used as needed for certain special needs.
2007-10-07 01:01:41 · answer #10 · answered by Wolf of the Black Moon 4 · 1⤊ 0⤋