hail damage aero advantage

[Chrysler kid]

Oh and I respect the sarcasm, but I've seen many hail damaged commercial jets, I doubt they reskin the entire fuselage. Going to Google that now though

[Chrysler kid]

Apparently fighter planes can be fitted with "shark skin style" textured finish, and textured finishes are banned in most forms of racing! Although much of that has to do with roger Penske acid dipping an entire camaro chassis in 1967 to shave 400 lbs off of the car. The metal was so thin that it caused "dimples" in the camaros surface and not knowing it was just super thin metal the racing community thought the dimples gave him an unfair advantage

Can A Car's Gas Mileage Be Improved By Adding Golf Ball Dimples? - Neatorama


http://www.lufthansagroup.com/en/the...hark-skin.html

http://www.popularmechanics.com/scie...anes-16792156/

[aerohead]

Originally Posted by drainoil

So there is a reason airplanes don't have dimples?

generally,aircraft have such high fineness/aspect ratios,that attached flow is a forgone conclusion.
For short field takeoff and landing they may employ vortex generators to help keep flow attached to flaps at high angles of attack.
Vortex generators perform better than dimples,so they're never used.
Golf balls use dimples,as they cannot be knocked off the ball by either the club or ground strike.They're a compromised form of VGs.