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Why B737 CFM56 engine sounds like heavy wind sound at Throttling up?

I have noticed this effect for years (during the time I was an active traveler) and noticed the following: When taxiing around on the ground, the pilot will jazz the throttles briefly from time to ...
niels nielsen's user avatar
13 votes
Accepted

Why the combustion chambers of a turbine engine aren't used to spin the compressor like a firework wheel?

https://en.m.wikipedia.org/wiki/Tip_jet The link describes the nearest (imho) working application of your idea in aviation. While it generally works, it goes against important engineering tendencies ...
fraxinus's user avatar
  • 1,543
4 votes

Why the combustion chambers of a turbine engine aren't used to spin the compressor like a firework wheel?

The closest thing I found to this was this 3D animation of a hypothetical "turbineless jet engine", but no article/research which explored the practicality/efficiency of such an engine. ...
sophit's user avatar
  • 13k
7 votes

Why the combustion chambers of a turbine engine aren't used to spin the compressor like a firework wheel?

What you are proposing would certainly be capable of powering a compressor section, but don’t forget that the primary purpose of a jet engine is to propel an aircraft forward by producing thrust along ...
Michael Hall's user avatar
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4 votes

Why the combustion chambers of a turbine engine aren't used to spin the compressor like a firework wheel?

I believe you're suggesting having each combustor attached directly to the turbine shaft and using the hot gas output of each combustor to directly drive the main shaft instead of using the combined ...
FreeMan's user avatar
  • 16.3k
0 votes

Why cant all planes use the best engines like the GeNX or the Trent XWB?

In additional to the points raise in the other correct answers, 'best' cost wise does not mean most fuel efficient. If you have a fleet that you have operated for a decade and know that after every x ...
GremlinWranger's user avatar
2 votes

Why cant all planes use the best engines like the GeNX or the Trent XWB?

Define "best". Best for what? If there were a single universal "best", nothing else would exist. As already said, aircraft use engines that are available when the type gets ...
jwenting's user avatar
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3 votes

Why cant all planes use the best engines like the GeNX or the Trent XWB?

All commercial aircraft use the best engine technology available at the time when they were being designed. Once the design is settled (after years of work!) an engine change would reset the whole ...
niels nielsen's user avatar
4 votes
Accepted

Why cant all planes use the best engines like the GeNX or the Trent XWB?

Why doesn't Airbus certify airplanes with the best engine in the market? For example, the A330 had a General Electric CF6-80E1 engine which was very small for it Because when the A330 was first ...
sophit's user avatar
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