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  1. taildragger_sp

    Corvair Mount

    about 15 pictures down is a picture of a motor mount on a Pietenpol August 2010 At The www.FlyCorvair.com Hangar Mark Langford's site has a mount for a KR2s Mark Langford's KR2S Corvair Engine Mount
  2. taildragger_sp

    Hi Wing Airfoil Selection

    The Wittman ButterCup does not have a true 2412 airfoil. The rear section is thinner. I plotted out the NACA 2412 and laid it over my plans and it is necked down to meet the inch and a quarter aileron and flap torque tubes. I wonder what the computer would show about Steve's modification?
  3. taildragger_sp

    Unadvertized secrert abilities

    WD-40 will kill wasps. We call them 'Mud Daubers' as they build a nest with mouthfuls of mud and attach to the underside of eaves. Best time to spray the nest is at night when they are all just hanging around. During they day they are aggressive and most are off doing what they do. if you do...
  4. taildragger_sp

    New Ultralight and LSA Trainer design PAIR

    Airbike and Airbike Tandem.
  5. taildragger_sp

    Buttercup Modifications

    the original flew for years that way so i guess i shoud not worry. Berridos, I think that Wittman was a racer first and his desire to go fast influnced his tip design. The Tailwinds did not have this tip originally. He developed the tips for his race planes and tried them out on the...
  6. taildragger_sp

    Buttercup Modifications

    Oh I wanted to ask... The design of the leading edge flap requires a hole to be drilled in the front spar. It is in the center of 1 inch thick spruce. Thin birch plywood is applied to both sides. Would a sheet (or a lay up of multiple sheets) of carbon fiber be stronger or just wasting money...
  7. taildragger_sp

    Buttercup Modifications

    I am building a Buttercup and have done some research on the aircraft. No, the Buttercup does not fly with reflexed flaps. Some of the older Tailwinds tried this. The stall 'clean' is 51 MPH. Landing speed with flaps is quoted at 40 to 50 MPH (www.luceair.com). The beauty of the ButterCup...
  8. taildragger sp

    taildragger sp

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  9. BrianRanch09plus! 202

    BrianRanch09plus! 202

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    taildragger_sp

    album
  11. taildragger_sp

    Tailwheel Linkages

    even less drag... Rocket steering link RV Rocket Steering Link RV Rocket Steering Link [] - $124.00 : Flyboy Accessories, Fly in comfort, fly in style.
  12. taildragger_sp

    what is a strong, light fabric for human powerd planes?

    Tyvek the house wrap material that FedEx uses for their mailers. there is a 1.7 ounce dacron fabric for ultralights.
  13. taildragger_sp

    Vne Zenith 701

    Take a look at Luce air Buttercup. cruises at 135 lands at 40 VNE 150 rag and tube:ban: Variable camber wing...Steve Wittman design LuceAir ~ The Homebuilt Rag & Tube Aircraft Experts buttercupbuilders : Buttercup Builders
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