Aluminium Leadin edge Aluminium Leadin edge gorkabilbao (Aeronautics) (OP) 22 Mar 11 16:00 Hello its my first job as enginner and I have to search solutions to protect my aluminium leading edge against erosion, corrosion, birdstrike ....If you can give me some link to visit or opinions I would be grateful, thanks for all RE: Aluminium Leadin edge Compositepro (Chemical) 23 Mar 11 00:23 Leading edge of what? 3M makes urethane sheet products. A propeller might use stainless steel. RE: Aluminium Leadin edge gorkabilbao (Aeronautics) (OP) 23 Mar 11 05:28 the leading edge of an aluminum airplane wing. I have to protect it using a alloy but i dont find anythink. RE: Aluminium Leadin edge rb1957 (Aerospace) 23 Mar 11 10:43 birdstrike analysis is Way too complicated for this forum.what type of plane are you working on ? kit-build, Part23, Part25, ??can you look at a similar plane ?? RE: Aluminium Leadin edge gorkabilbao (Aeronautics) (OP) 23 Mar 11 14:08 I`m only searching for all kinds of alloys to protect an aluminium leading edge, not a particular airplane wing RE: Aluminium Leadin edge rb1957 (Aerospace) 23 Mar 11 14:14 sorry, getting confused ... by the words "to protect" ...you can make a metal leading edge, 2024T3, 7075T73 would be typical alloys. or you can "protect" the wingbox with a kevlar leading edge, typically much lighter than Al, better for bird strike. but kevlar LEs are difficult to de-ice, typically pneumatic (inflatable) bladders are filled to them; Al LEs can be thermally anti-iced (ie blow hot air on the inside of them, to melt the ice on the outside).what type of plane ? RE: Aluminium Leadin edge berkshire (Aeronautics) 23 Mar 11 14:25 The way this question is worded, it looks very much like a student question.B.E. RE: Aluminium Leadin edge bobbyewing (Aerospace) 24 Mar 11 04:46 hi (regarding far25)i agree with rb1957 with alloy to be used. however according to the size of the wing and the performances of the wing you want, you will whether go for 2000 series or 7000 series alloy (depending on fatigue and static properties of materiels and temperature levels expected).to answer the bird strike: more and more suppliers are performing crash simulations.and according to what you need to protect behind your LE, you ll have to adjust the rib pitch and skin thicknesses.of course your design must be validate by test. RE: Aluminium Leadin edge gorkabilbao (Aeronautics) (OP) 24 Mar 11 04:54 But I dont have to aplly a mask or paint against the erosion to protect the leading edge, or it can be a 2000 or 7000 aluminium alloy as well as the wing RE: Aluminium Leadin edge rb1957 (Aerospace) 24 Mar 11 07:37 LE erosion is something typically only an issue for propeller blades; so no, i don't think you need to consider this for a wing design.depending upon the type of plane you're working on you Can use Al alloys for the LE But it probably won't be very good for bird-strike, Or if it is then it'll be very heavy.the key geometry feature is the radius you can create for the LE skin, the smaller the better for birdstrike.but there are other things to consider, like icing protrction.