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Old 27th November 2012 | 15:21
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CliveL
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Crabman

My problem is this. From the point of view of the aircraft, all the thrust is coming from the pylon. I still think it would be an odd usage to say that the engine pylon is "actually making thrust".
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 powerplant had three distinct components, the intakes, the engines and the secondary nozzles, and all three were attached to the airframe separately.
I tried, and failed, to find a suitable illustration.
Since the components are individually attached, it seems not extraordinary to think about how the powerplant forces are shared between them. This is why people talk about the thrust transmitted through the intake attachments. That, for me, is not saying that the intake makes thrust - it just carries its share of the powerplant forces.

Last edited by CliveL; 27th November 2012 at 15:36.
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