PPRuNe Forums - View Single Post - reversers and a/c speed
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Old 5th Jan 2011, 10:56
  #110 (permalink)  
PBL
 
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Originally Posted by HN39
What if the source of the "wind" is a large reservoir of compressed air?
Or, as I mentioned above in Note 98,
Originally Posted by PBL
..... solid-rocket motors
And to the question "what airplane flying would do this"?, I gave the answer in Note 91:
Originally Posted by PBL
Do notice I said "physically possible" and not "a practical proposition"!
In both these cases, it would obviously be more practical to turn the compressed air, respectively rocket motors, towards the ground, rather than towards a wing which was to lift one off the ground. This is a matter of understanding physical principle, not of practice.

As to the suggestion that
Originally Posted by HN39
Guppy, I agree with most of what you write
I am having trouble finding any agreement between attributing most of the braking force to "intake drag"/"inlet drag"/"ram drag" (which we are told all mean the same thing) and attributing most of the momentum-reduction to
Originally Posted by HN39
[t]he thrust reverser, and it's not a component of the engine but of the nacelle (or exhaust duct)
And lomapaseo had this difficulty also, in Note 93.

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