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Concorde Engine/wing Gap  
User currently offlineBA97 From Canada, joined Apr 2004, 377 posts, RR: 0
Posted (9 years 11 months 2 weeks 5 days 6 hours ago) and read 2071 times:

I notice on pictures of Concorde that there is a gap along the front half of the engine where it meets the wing. I would have thought the surfaces would have to be smooth and joints sealed. I can't think of seeing similar spaces on other planes. Is there a purpose for this?


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there is economy class, business class, first class...then Concorde..pure class
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User currently offlineXXXX10 From United Kingdom, joined Jan 2000, 777 posts, RR: 0
Reply 1, posted (9 years 11 months 2 weeks 5 days 1 hour ago) and read 1947 times:

If you are referring to the black strip above the intakes I don't think that is a gap,

User currently offlineFredT From United Kingdom, joined Feb 2002, 2185 posts, RR: 26
Reply 2, posted (9 years 11 months 2 weeks 5 days ago) and read 1940 times:

Close to the surface of an aircraft is a layer where the air has been slowed down by friction. This is called the boundary layer. It is turbulent and not at all what you want to feed your engines. When it does get sucked into the engine intakes, it is called boundary layer ingestion, and is something you try to avoid. To avoid it, you make sure to have the lip of the engine intake some distance away from the skin of the aircraft. There’s a wedge shape in there to steer the air out to the sides.

Take a look at military aircraft, e g the Saab 39 Gripen or the F-16, and you will see similar features on the intakes.

Regards,
Fred



I thought I was doing good trying to avoid those airport hotels... and look at me now.
User currently offlineBA97 From Canada, joined Apr 2004, 377 posts, RR: 0
Reply 3, posted (9 years 11 months 2 weeks 4 days 17 hours ago) and read 1883 times:

Thanks. Fred. In the photo you see the thin black gap along the side and makes me thing someone needed a spanner or something to tighten a few screws....


there is economy class, business class, first class...then Concorde..pure class
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