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  1. bwainfan

    Harlow PJC-4 on Facebook Market place $9,500

    They actually built 11 of them. I had the pleasure of a flight in Mel Cassidy’s pjc-2 many years ago. It’s a very nice airplane…For the right restorer it might be a worthwhile project.
  2. bwainfan

    Very low aspect ratio planes?

    Matthew: A few thoughts for you: First, we normally take off at a speed significantly above stall speed in order to have positive rate of climb and stall margin for gusts. Typically lift-off speed is about 1.2 x stall speed, so Cl is about 70% of Clmax at that point. The issue about CLmax for...
  3. bwainfan

    ACHIEVING THE BEST REFLEXED AIRFOILS FOR FLYING WING USE IN THE SMALL PLANE CATEGORIES

    Lots of info here: https://b2streamlines.com/winglinks.html Including my BW 05 02 09 section designed years ago for plank RC models
  4. bwainfan

    Raptor Composite Aircraft

    That looks very familiar.......
  5. bwainfan

    Barnaby Wainfan's EAA 2020 "virtual OSH" forum

    My EAA Spirit of Aviation talk "The 7 Deadly Sins of Airplane Design" is now online here: https://eaatogether.org/live/forums/6174385951001
  6. bwainfan

    Flying wing as cheap and simple option for basic fun flying.

    I'm not suggesting any particular configuration... Just pointing out a source of a lot of good experimental data. You can get a lot of insight from reading some of the reports.
  7. bwainfan

    Flying wing as cheap and simple option for basic fun flying.

    Lots of good info has been published, particularly here: http://aerade.cranfield.ac.uk/ Search on "gothic wing" or "ogee"
  8. bwainfan

    Oshkosh Memories

    1994: Base leg to KOSH RWY 9 viewed from the cockpit of N117WD. Early July arrival so field is still empty.
  9. bwainfan

    Barnaby Wainfan newsletter

    I am starting a newsletter to provide news and updates on the Facetmobile, Facetmobile-related projects, and any other aeronautical items I might think would be interesting. If you are interested, please sign up here: https://tinyletter.com/facetmobile Postings will be at random intervals...
  10. bwainfan

    Facetmobile

    Still working on the design of the 2-seater. Hope to start building before too long.
  11. bwainfan

    Facetmobile

    Original airplane was aluminum just like the Oregon build. The outer mold line shape is the same as the original airplane. Its not scaled up or down. There have been detail updates and changes but the overall approach is the same as N117WD. The Facetmobile itself was always built to be...
  12. bwainfan

    Very low aspect ratio planes?

    Fins on Talon Topper are permanently fixed. You may have found a video of a minor mishap but I'm not familiar with it. The fins on both airplanes are positioned so the fin structure can hook into the mounts to the main hull at a point near the fin aerodynamic center to minimize moments on the...
  13. bwainfan

    Very low aspect ratio planes?

    Berridos's last post, at least as it relates to Facetmobile follows the sadly-common trend on HBA of someone who has no first-hand knowledge making authoritative-sounding statements that are completely wrong. When its just people talking "general principles" I generally refrain from jumping in...
  14. bwainfan

    Reference for calculating the lift distribution

    https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930094469.pdf
  15. bwainfan

    VJ-23 Rigid Wing Hang Glider

    Complete plans were published in the april 1973 issue of Mechanix Illustrated. The prototype glider is on the cover.
  16. bwainfan

    Flying Flea PIREPS

    Hey Cheapracer: If you are going to slag me in public, as least have the courtesy to spell my name right.... While you're at it you might actually check some facts before running your (digital) mouth.
  17. bwainfan

    While we're getting bored with Raptor, here's a new one to critique...

    [QUOTE="flyboy2160, post: 477900, member: 31286"]Agreed. The Facetmobile leading edges are tube-diameter 'sharp,' but they have a much larger included angle, which may be more like a conventional rounded nose. But I don't really know anything about these very low aspect ratio wings, which is...
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