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Thread: built up wood spars for aircraft larger than Ultralights,

  1. #1

    Join Date
    Nov 2013
    Location
    Mount Perry, Ohio
    Posts
    16

    built up wood spars for aircraft larger than Ultralights,

    All, I am looking for aircraft by name for any that have or use the built up wood spars in them.
    Example, Minimax uses a 1/16 plywood face web on the 3/4 x 1 upper and lower caps.

    I am looking for aircraft that gross at 1320 or better, and use the I Beam and Plywood with upper and lower caps, or the box play and upper and lower caps.
    i have the dimensions for the LMA 5, aircraft spar dimensions, that wing uses 8 and 5 inch tall spars.

    i am looking for 6 inch and 5 inch spars. and suggestions

    Thank you Robert

  2. #2

    Join Date
    Aug 2011
    Location
    Wachapreague Va.
    Posts
    216
    Kr2s. , gross is much lower though

  3. #3

    Join Date
    Jul 2011
    Location
    Justin, Texas
    Posts
    115
    Stinson L-5 has a box spar. Going even bigger would be the Fairchild PT series.

  4. #4

    Join Date
    Nov 2013
    Location
    Mount Perry, Ohio
    Posts
    16
    Ok, that is 2 to look up, thank you vaflier, and Craig. its an experiment. have a great week.
    Robert

  5. #5

    Join Date
    Nov 2011
    Location
    Broughshane, Northern Ireland
    Posts
    18
    Pietenpol Air Camper as modified for use in the UK, uses built up spars using 7/8" & 3/4" square spruce capstrips and 1/8" ply web on mostly one side. Various blocks between capstrips and ply on second side for portions of the spar.
    The aircraft is limited to a MTOW of 1200 lb.

  6. #6

    Join Date
    Nov 2013
    Location
    Mount Perry, Ohio
    Posts
    16
    i found those as well, I just got home with my new frame, so I can start building up the wing profile, and moment of inertia, that the tail has to produce in order to fly it cleanly.
    at this time the frame has a wing to tail coupling issue, I have to fix.

    thank you

  7. #7
    Foller D VII and D VII

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