Question:
http://www.myaviation.net/search/photo_s...
what is the differnt between aircraft reg.number and some number with CN*****?
Does it come out of the little hole, if so isn't the exhaust exit area way too small? Help.
need any info, on OMH eagle ultralite helicopter. Will it fly.?
Explain as well as you can thanks?
Answers:
Didn't you ask the same question in the Science/Engineering category? In case you missed my answer thee, here it is again:
Can someone tell me the principles behind helicopter flight?
On that picture, the bypass air comes from the annular region between the red painted cowl and the grey one. The primary flow comes out aft of the grey cowl, between the silver ring and the heat discolored cone.
why when a plane flys over my neighbours house it seems ages to get to mine?
Why would the exit be too small? Jet engine is about getting exhaust gas to move FAST. Make the exhaust area larger, and the speed will be less, and then bye bye propulsive power.
check out jet blast yahoo video
what happens with unused airplanes when they are takenn out of service?
The by-pass air comes out between the red and gray cowlings. That provides 80% of your thrust. The combusted air comes out just over and around the cone. That provides the other 20% of your thrust.That little hole is about 9ft in diameter,and yes primary thrust does exit through there. Those cones are designed to maximize the efficiency of the engine and are automatically augmented through the engine control computer to move forward or back depending on the thrust requirements needed. What I think your referring to as by pass is where air enters upon reverse thrusting.This does not mean the engine is thrown in reverse , the front engine blades are simply rotated so the forward thrust reverses direction, and is used to slow the plane down after landing.
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