shehbazi2001
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On the following link is a picture of Rafale, u enlarge the picture and see it with attention.
Photos: Dassault Rafale M Aircraft Pictures | Airliners.net
I noted saw-tooth edges all over the plane on all trailing edges...like trailing edge of canard, back edges of front and main landing gear doors, on trailing edges of flaps, on the trailing edge of the main wing.....
From F-117's cockpit and landing gear doors, we know that saw-tooth construction is for reducing the Radar Cross-Section.........and Rafale seems to use this technique fully, all over the plane.......now I dont know that how much it actually reduces the RCS.....
From aerodynamics point of view, this shall also make the surface of fuselage rough, thus changing the air flow from laminar (if any) to turbulent.......and the turbulent flow is advantageous in that it does not separate easily.....thus delaying the stall eg at high angle of attack
The disadvantage of turbulent flow is that it increases the friction drag, and thus more fuel consumption.
Photos: Dassault Rafale M Aircraft Pictures | Airliners.net
I noted saw-tooth edges all over the plane on all trailing edges...like trailing edge of canard, back edges of front and main landing gear doors, on trailing edges of flaps, on the trailing edge of the main wing.....
From F-117's cockpit and landing gear doors, we know that saw-tooth construction is for reducing the Radar Cross-Section.........and Rafale seems to use this technique fully, all over the plane.......now I dont know that how much it actually reduces the RCS.....
From aerodynamics point of view, this shall also make the surface of fuselage rough, thus changing the air flow from laminar (if any) to turbulent.......and the turbulent flow is advantageous in that it does not separate easily.....thus delaying the stall eg at high angle of attack
The disadvantage of turbulent flow is that it increases the friction drag, and thus more fuel consumption.
