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  1. R

    N Number on Ultralight question... Worth it?

    Yeah, but pretty much everyone else will be.
  2. R

    Rag and Tube: Scary Design

    The biggest problem with this design is that the material for an entire airframe, if conventionally welded, would cost less than the turnbuckles for the original fuselage. Apparently the cost of turnbuckles has outpaced most other aircraft materials with the exception of maybe Sitka Spruce.
  3. R

    Rag and Tube: Scary Design

    The only place copper wire is specified is for turnbuckle safety wire. 20 ga. copper wire. Forward of strut JK, 12 ga. plated hard wire. Aft of strut JK, 14 ga. plated hard wire.
  4. R

    Budget built MiniMax 1100 Ultralight

    From the material list, the 1100 has 2.15 cubic feet of wood (timber not plywood ). Using FPL's numbers douglas fir would be about 17 pounds heavier than white pine. Sitka spruce about 2 pounds heavier.
  5. R

    Gluing A Lamination

    There is a hardener with a longer pot life. It will also take considerably less time to roll on the 105 than to spread t88. Edit: 209 is the extra slow cure hardener. Pot life 40 -50 minutes Working time 3 -4 hours
  6. R

    Gluing A Lamination

    I would use West Systems 105/206. Brush or roll it on. Good stuff. A little pricier than t88 but you can probably get it locally and save on shipping.
  7. R

    Wicks

    Steen uses epoxy. High clamping pressure is not required.
  8. R

    Whatever became of ......

    Brian Clayton, maybe.
  9. R

    PPG's Where to start?

    Thanks Dana and Wayne. Jeff Goin's site was exactly what I was looking for. Wayne pm sent.
  10. R

    PPG's Where to start?

    Anyone have a good source of information on getting started in ppg's? It seems that everyone in the business hates everyone else in the business. Nobody talks about how good their equipment is, just how much all the others suck. It's very off putting. A friend had a powered parachute...
  11. R

    True cost of experimental vs Certified

    Wolf River? Just a guess, a lot of development in that area.
  12. R

    Aluminum pietenpol aircamper?

    The best example of ruining the looks of an airplane is a nose-dragger Thatcher cx4. A sexy little airplane, unless it has a nose wheel.
  13. R

    Glue Joint?

    End grain glue joints have virtually zero strength. The only reason to glue those joints is to keep all the bits stuck to all the other bits while you remove it from the jig. There are two reasons to have nice tight fitting joints. 1. Pride in workmanship 2. Epoxy is heavier than wood
  14. R

    24 FPS Gust and Thermal

    The solid curve is the neutral flap curve. The short, broken curve (right of neutral flap) at the limit is flap up (reflex). At least that's my interpretation.
  15. R

    24 FPS Gust and Thermal

    Reflex? Max rough air speed flaps "0", and flaps up max rough air speed. Just a guess. I know nothing about the airplane.
  16. R

    Minimax fuselage value

    The Minimax was designed for pine. You can use spruce but it will be heavier and cost more.
  17. R

    Getting rid of the Rag

    This from LAA will get you started estimating fuselage loads. http://www.lightaircraftassociation.co.uk/2010/Engineering/Design/stressing%20of%20fuselage%20structures.pdf Also Hiscocks' book. Don't remember the title, Design of Light Aircraft, maybe?
  18. R

    Building 2 instead of 1?

    You're welcome. Glad I could help.
  19. R

    Building 2 instead of 1?

    Those are the ones
  20. R

    Building 2 instead of 1?

    I bought some shade 5 glasses with magnifiers that snap on the back of the lenses from amazon. About $30 I think. You can get just the magnifier if you want to try a different strength.
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