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Thread: Material specifications KF 4?

  1. #1

    Join Date
    Feb 2010
    Location
    Denmark
    Posts
    19

    Default Material specifications KF 4?

    Can someone please help me regarding specifications on the aluminum tubes in the wings? I mean like you have 4130 steel for the fuselage and struts which kind / quality is the aluminum in the wings? If someone could support me with a complete list of material I would be really happy.

  2. #2
    Senior Member jtpitkin06's Avatar
    Join Date
    Jan 2010
    Location
    Greenville, TX
    Posts
    640

    Default Re: Material specifications KF 4?

    All dimensions in inches.

    Ribs - 0.205 birch ply
    Rib cap strips - 0.102 birch ply
    False ribs - 0.102 birch ply

    Spars 6061-T6 2.500D x 0.0650 wall
    Spar inserts 6061-T6
    Drag/anti-drag braces - 6061-T6 0.625D x 0.0580 wall
    Stringers - 6061-T6 0.375 x 0.035 wall

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