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  1. M

    NIce Fly Baby project on Craigslist

    Ron - Thanks for the explanation. Can you provide a picture of the normal construction at that location? (I didn't spot one in a casual cruise through your website.) One other thing: It's not absolutely clear from the resolution of the pictures in the gallery on the sale page, but it looks to...
  2. M

    NIce Fly Baby project on Craigslist

    Those [presumably beefy] metal tubes between bays of 'X' bracing wires can't take as much or more compression than the strips of wood reinforcing the plywood webs on correctly located wooden compression ribs? Does the number of wooden ribs conform to the plans?
  3. M

    21st century Volksplane?

    My experience with the V-4 engine in the SAAB 96 I bought new in 1967 was all to the good. Smooth (thanks to a counterbalance shaft parallel to the crankshaft and geared to turn in the opposite direction), free revving, trouble free. Back in the days when no one was very concerned about fuel...
  4. M

    airplane wing and power loading.

    +1 for bmcj. Wing loading is used to design for landing speed; span loading is used to design for climb/glide performance.
  5. M

    landing gear desing and loads books

    Aircraft Landing Gear Design: Principles and Practices by Norman S. Currey ISBN-13: 978-0930403416; ISBN-10...
  6. M

    Glider/ Ultra-Light personal Jet Aircraft DESIGN - Suggestions and help please!

    The quotation about "half perimeter of the wing (p) ...." is somewhat misleading. The variable 'p' is not the half perimeter per se but the ratio of the half perimeter divided by the span, b. Start at the leading edge of the wing exactly at the wing root (on the centerline of the airplane)...
  7. M

    Ugliest Aircraft Ever Build

    Hmm..... Apparently the moderators swooped in and changed something in the original thread title to "Ugliest". For all who enjoy good English, "Build" in the thread title should be changed to "Built". At any rate, did anyone mention the Farman F.4X? (Note the headrest of the intrepid...
  8. M

    Clark Y 20%/9% airfoil data needed.

    A cautionary note on Clark Y sections Scaling the ordinates of the original Clark Y will yield sections which are flat on the bottom from 20% of the chord to the TE. The convenience of the flat bottom is purchased at a price: the thicker the section, the greater the value of the maximum camber...
  9. M

    Clark Y 20%/9% airfoil data needed.

    To get a nice, deep root section to minimize spar weight. For instance, Miles used an NACA 23024 root section tapering to an NACA 23009 tip section on several aircraft, including the Miles M.25 Martinet. Check out The Incomplete Guide to Airfoil Usage to see that 18% thick root sections, just a...
  10. M

    Buttercup tail

    What airfoil section are you contemplating for your mod?
  11. M

    Buttercup tail

    Not any wing using the NACA 2412 (the original Buttercup's airfoil section according to the article at http://luceair.com/images/replica/may_1989.pdf). If the Luce plans specify a different airfoil section, what is it?
  12. M

    Hombebuilt B-29/Stratocruiser

    There was a full scale B-17 with an engine in the nose.... PointNiner: Single Engine B-17 & Other Rare Aircraft Pics
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