Quiet OBVIOUS isn’t it?

Typhoon would have been a FAR better design….

:o:rolleyes:

True but designing a truely versatile (not like the F22) 5th gen fighter in the eigthies was out of french financial reach.

Makes you wonder what would have been had Dassault kept in the yet to be EF programme. Money and technology wise. Ahwell

All this talk of max.sustained turn rates. Unless the merge is at those specific speeds/altitudes none of that data can be used to argue x vs y. such as x does 23, y does 24.

They perm banned you on Google?

No, just hoped someone could give the figures (especially the F-22 bay length). Guess not everyone is as helpful as you, oh wait, you made another sarcastic post, just what this forum needs.

typhoon1

What you are talking about seems to be the boundary layer traps or diffusers, even the F15 is equiped with them.

Diffusers are allowed to slow down air mainly which does aid compression, but not mainly for supersonic compression. The shock created underneath the fuselage itself compresses air (ignoring the laminar flow), this increasing with velocity. I have done some work on ramjets myself, this (as said mainly applied to Scramjets) can account for 70% (mach 5+) of air compression and velocity reduction. Now how effectively it is used on the EF/Rafale at low supersonic-mach 2 speeds to me is uncertain, but the idea the intakes compressing all the air and the mass flow rate is limited to the intake structure is not necessarily true.

Radar waves may propagate on the skin of a control surface and/or on the airframe skin and bounce back when they reach the trailing edge of the surface. When the trailing edge is perpendicular or near perpendicular to the traveling direction of the incident signal, the waves will bounce back to the emitting radar. With the sawtooth, the skin waves are reflected away from the emitter direction.
I suppose care must be taken that the sawtooth pattern does not to create diffraction which would be even worse.

I was thinking along those lines. Interesting approach, I wonder why Eurofighter or Saab have not chased the same idea. Like you say, for example possible diffraction, may have been one of a number of drawbacks the latter two concluded. who knows 😉

Quick questions about the Rafale’s RS reduction techniques.

Does anyone know how those unusual “saw-tooth” ridges along the canards/wings/belly help to reduce the RS?