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Forum: Tech Log

21st Apr 2013, 07:27

Replies: 148

Concorde engine intake "Thrust"

Views: 116,516

Posted By CliveL

Concorde Inlet Thrust

Tomtech,

As one of the original Concorde inlet design team and as someone who has spent a fair bit of time recently trying to unpick the intricacies of the SR-71 design, I have to disagree with...

Forum: Tech Log

28th Nov 2012, 06:10

Replies: 148

Concorde engine intake "Thrust"

Views: 116,516

Posted By CliveL

Not closer than the point at which the streamtube...

Not closer than the point at which the streamtube that contains the engine flow is first affected by the forward influence of the intake. Otherwise as far ahead of the intake as you wish to define...

Forum: Tech Log

27th Nov 2012, 18:54

Replies: 148

Concorde engine intake "Thrust"

Views: 116,516

Posted By CliveL

Peter, It's just the accounting....

Peter,

It's just the accounting. Normally to calculate thrust one takes the momentum change from freestream conditions (ahead of the intake) to the exit conditions just behind the jet pipe...

Forum: Tech Log

27th Nov 2012, 15:21

Replies: 148

Concorde engine intake "Thrust"

Views: 116,516

Posted By CliveL

Crabman I see where you are coming from, but...

Crabman

I see where you are coming from, but Concorde didn't have a pylon. On subsonic aircraft all the powerplant loads are transmitted to the airframe via the pylon as you say. But the Concorde...

Forum: Tech Log

26th Nov 2012, 14:09

Replies: 148

Concorde engine intake "Thrust"

Views: 116,516

Posted By CliveL

Goarnaut My remark wasn't meant to denigrate...

Goarnaut
My remark wasn't meant to denigrate anybody's work, and with hindsight I can see that the same criticism of my words could be applied to all those people who struggle to improve the...

Forum: Tech Log

26th Nov 2012, 08:03

Replies: 148

Concorde engine intake "Thrust"

Views: 116,516

Posted By CliveL

Gordon, Not wanting to go over old ground I...

Gordon,

Not wanting to go over old ground I wasn't going to do any more on this, but w.t.h. the golf course is unplayable, the river unfishable and its raining again ....

I make the...

Forum: Tech Log

25th Nov 2012, 06:50

Replies: 148

Concorde engine intake "Thrust"

Views: 116,516

Posted By CliveL

Interesting stuff

Gordon,

Without doing a lot of sums (which I have probably forgotten how to do), the best I can offer is:

58000 ft, M 2.0, Ambient temperature - 52 deg C, Ambient pressure 1.2 lb/sq.in
Engine...

Forum: Tech Log

22nd Nov 2012, 11:45

Replies: 148

Concorde engine intake "Thrust"

Views: 116,516

Posted By CliveL

I’ve also just come across this thread after two...

I’ve also just come across this thread after two years, and although I for sure don’t want to repeat any of the millions of electron-volts expended in the excellent discussions I thought it might be...

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