0 a turbine used as an engine, especially for an aircraft, that provides some force for movement from the gas that it pushes out, and some by turning a large special wheel with blades that also pushes air out, or an aircraft driven by this type of engine --
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In modern high-bypass turbofan engines, the fan mounted afore the jet engine core is very large.
Although once widely used, they are relatively inefficient compared to turboprop and turbofans for subsonic flight.
Taking the principle a step further, the high-bypass turbofan is even more efficient, having typically three spools each spinning at a different speed.
It was a conventional design for its class, a low-wing monoplane with turbofan engines mounted in rear fuselage nacelles.
Postwar developments of the turbojet and turbofan engines apparently obviated the need for large aircraft engines of this type.
Afterburners are not used on high-bypass turbofan engines but may be used on either low-bypass turbofan or turbojet engines.
Low bypass turbofans have a lower exhaust speed than turbojets and are mostly used for high sonic and transonic and low supersonic speeds.
These engines have the fuel efficiency advantages of turboprops with the performance capability of commercial turbofans.
Managing Your Emotions
What makes me angry?
Mostly，l hate when someone tries to make someone else feel bad.
I have to admit that once, when l was actually called names.
l regretted doing this afterwards, but not full heartedly because l think l was provoked in that situation.
The most postive way of dealing with anger is talking about the problem.
l talk to someone who listens, or l'll write my thoughts down on paper.
Learning how to deal with anger as you're growing up is so important.
When you're younger, you might yell,or cry when you're angry, but as you get older, you're expected to handle your emotions much better.
Learning to control your emotion now will prevent you from doing something that you'll regret later on in life!
