YF-17 Cobra photos

http://www.flickr.com/photos/52810288@N05/sets/72157632266352129/

Interesting photos which i know EVERYONE has seen before….

Thanks for the link, I enjoyed those photos.

Idly looked-up the specs for the current F-18E and wasn’t surprised to see that its MTOW of 30 tonnes is double that of the YF-17…

Such is life.

Shorter slots on the LEX improved flight performance and aerodynamics…….

http://www.flickr.com/photos/52810288@N05/8282498223/in/set-72157632266352129/

The final solution, which Northrop didn’t like, was found on the follow-on F/A-18A, where two thirds of the slots were blocked off. The only area left open was for the boundary layer air to exit after going up the inlet ramp.

John.

Nice photos!

Always love the photos of the YF-17 where you can see through the slots in the strakes.
What were Northrop trying to achieve aerodynamically with these?

If You’re talking about fourth picture in the last but one row, it has a description below, claiming these slots were the form of boundary layer control. The ones on F-18s are pretty simple deal – If you manage to prevent boundary layer from entering engine inlet, you gotta dump it somewhere and small slots / outlets above are perfect for this. I’m curious though why they were so much longer on YF-17.

I wonder about that too 🙂 Are these also on the F-18?

Always love the photos of the YF-17 where you can see through the slots in the strakes.
What were Northrop trying to achieve aerodynamically with these?