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  1. Kristoffon

    articulating the retractable gear's door

    For a while I've been thinking of ways to modify the partially enclosing gear doors of the Osprey-II I'm building as seen here: Photos: Pereira Osprey II Aircraft Pictures | Airliners.net into fully enclosing doors without having to resort to modifying the airframe and adding another door flap...
  2. Kristoffon

    My Osprey-II build

    I'm taking the liberty of posting this here instead of the build log section because I don't wish to miss on anybody's thoughts and criticism. Aircraft choice About a year or so after I learned about this madness of ordinary people building flying machines the thought had settled that I was...
  3. Kristoffon

    4 seater RV-6

    RV6+ C-GZII at Arlington - Imgur I'm not sure if the fact this passed FAA inspection and got registered makes me excited the experimental market is such a front for innovation, or worried about what's over my head...
  4. Kristoffon

    laminations

    Friday I made the laminations for the fuselage longerons. They're laminated from 2 1/2 x 3/4 pieces as shown on the picture. The top lamination has a quite sharp bend at about 2/3rds of the way which required quite a bit of force to get it in shape. When I took the clamps off this morning the...
  5. Kristoffon

    Why can't I just flip the prop around when rotation direction is reversed?

    Today I placed an order for the prop for my plane (yay!) and the manufacturer was very concerned about the rotation direction and I had to explain it to him several times until he was satisfied there was no misunderstanding between us. That's a wooden prop in case it makes any difference. I've...
  6. Kristoffon

    What kind of specs do I need for a tig welder for fabricating a frame?

    Basically my main build stalled with materials still stuck in customs so I decided to throw together a hovercraft for next summer (december) in junkyard wars fashion - only without the junk. Our welding shop does MIG so I'll buy a TIG welder and lots of scrap Al to train on before we start on...
  7. Kristoffon

    testing non standard glue

    Preparing to start construction on my aircraft I've obtained samples of Araldite epoxi glue which was recommended by the reseller's specialist. I've made some test pieces by cutting thin wooded strips (half inch x 1 inch roughly) along the grain and a 10 to 1 diagonal cut (along the longer...
  8. Kristoffon

    feasibility of creating a variable pitch hub

    I'm building an Osprey-II amphibian and one thing that I'd really like to have is a reversing propeller to ease maneuvering on the water around tight spots. If I simply wanted a variable pitch I'd go with the Ivo. However I figure I can replicate the design from here which seems simple enough...
  9. Kristoffon

    wood shrinkage

    Does wood shrink/expand with varying humidity? Is it necessary to control humidity when cutting to avoing size fluctuation? Thanks.
  10. Kristoffon

    salt water operation, wooden amphibian

    Hello everyone I'm about to start construction of an Osprey-2 amphibian. Some people raised concerns because I intend to use it for salt water operation. Someone described it to me as "throwing away" the aircraft. While I accept maintenance would increase specially with gear and metal parts...
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