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  1. J.L. Frusha

    EAA Virtual Ultralight Days 2024

    EAA Virtual Ultralight Days will return in 2024 for the third year. A total of 15 webinars over three days (Feb. 20-22) will focus on “the lighter side of aviation,” according to EAA. The webinars will be conducted online from 1 p.m. to 8:15 p.m. (CST), five per day. The format for the...
  2. J.L. Frusha

    Loving's Love/Wayne's Racer WR-1 Formula 1 Midget Racer style as an UL?

    Could something similar to the WR-1 be built as an ultralight?
  3. J.L. Frusha

    Biplane Lift Distribution Questions

    Many of you are aware that I am in the design phase of building a Biplane based on the Curtiss-Stinson Special that belonged to Katherine Stinson. In my research, the one thing I am not finding is any good reference materials on the lift distribution of biplane wings. I could really use some...
  4. J.L. Frusha

    Testing Strut Braced Biplane Wings?

    As many are aware, I am working toward an ultralight biplane inspired by the Curtiss-Stinson Special, a 1-off biplane built for Ms. Katherine Stinson before WW1. Rather than having to fight with flying wires, due to the need to remove and reinstall the wings for stowing the plane, I am planning...
  5. J.L. Frusha

    How important is authenticity when a design inspired by a classic airplane?

    In my research for my inspired ultralight design of the Curtiss-Stinson Special I found that having a swept upper wing on a biplane spaced one chord vertically increases lift and reduces drag. I'm already deviating from the original by eliminating the flying wires and using struts. How...
  6. J.L. Frusha

    How important is historic authenticity vs aerodynamics in a historic inspired design?

    The inspiration for the ultralight I am trying to design and build is the Curtiss-Stinson Special, a special-order custom plane for Ms. Katherine Stinson (The Flying Schoolgirl). The original had the fuselage of a Curtiss S-3 Speed Scout, two sets of the lower wings and the tailfeathers of a...
  7. J.L. Frusha

    What Plane is this...?

    Anyone know what this is?
  8. J.L. Frusha

    Electric Twin Amphibious

    Still in development, but the estimated 1hr plus reserve seems reasonable for an electric...
  9. J.L. Frusha

    Loving's Love WR1 Flaps (1950)?

    Anyone know if these were ordinary flaps (under wing) or something else...?
  10. J.L. Frusha

    Paulownia Elongata?

    A light, machinable straight, coarse-grained fast-growing hardwood, supposedly known as "The Aluminum of Hardwoods". Supposedly bug and water resistant, Sounds almost too good to be true... Common Name(s): Paulownia, Royal Paulownia, Princess Tree, Kiri Scientific Name: Paulownia tomentosa...
  11. J.L. Frusha

    Flying Outhouse anyone?

    Just shooting the breeze... https://www.airplanesandrockets.com/airplanes/images/flying-outhouse-1.gif
  12. J.L. Frusha

    Curtiss-Stinson Special

    I was researching the Early Bird Jenny and Curtiss JN-4 Jenny, which led me to the Curtiss-Stinson Special (a one-off special order by Miss Katherine Stinson). The plane started as a Curtiss S-1 Speed Scout, to which Miss Stenson had Curtiss Aviation add the tail-feathers and two pair of the...
  13. J.L. Frusha

    Airplane Wanted Early Bird Jenny Plans wanted

    Looking for a set of Early Bird Jenny plans. Early Bird Jenny is a 2/3 scale Curtiss JN-4 designed by Dennis Wiley. I would like plans and information on the build. If I could contact Mr. Wiley, that would be greatly appreciated. My goal is a scale-ish (ultralight if possible) version of the...
  14. J.L. Frusha

    Mockingbird/AiRecliner

    Been fiddling with an ultralight design, figured it's time to get a bit more serious... Wing Calc. puts CG ~3/4 in ahead of the V. Expect to use the 1/2 VW engine w/~32 in prop. Wing calculation does not include the Junkers Control Surfaces. Mechanical mix Flaperons, Leading edge Slats, 2 x 2...
  15. J.L. Frusha

    Old-school Ball Magnetic Compass Question

    For many years , I've had the thought that a Magnetic Ball compass could be marked for more functionality... Artificial Horizon Slip, Turn and Bank Indicator Any thoughts/ideas on such a device?
  16. J.L. Frusha

    P-51C at ~70% scale as ultralight?

    I know I don't know enough, so I'm asking. There are plenty of folks in here that can give an educated opinion and I'd like to know... I like the P-51C Mustang III with the Malcolm Hood as used by both the RAF and the US AAC (Mighty Eighth did, for certain). Using foam-core plywood sandwich...
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