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  1. O

    Wing Ribs

    I'm currently working on a 44lbs piston engine UAV with 13.12 feet wingspan and 15.5 sq ft wing area. The engine produces 12 HP @ 7500 rpm and it's capable of 9000 rpm and i'll probably use a 28x10 propeller. The mission is recon and i want the UAV to be capable of at least 6 hours of flight...
  2. cluttonfred

    Sneaky tapered wings?

    The Sky Pup’s slightly tapered wing is made by joining identical front and rear half ribs to a tapered spar and using little strips to bridge the gaps over the top of the spar. That got me thinking about other sneaky ways to create tapered wings with simplified methods. Off the top of my...
  3. nickec

    Routing Out All Your Aluminum Ribs *Without* Welding Them Together

    Playing around with a router to make aluminum ribs, from 6061T6 .020 sheet, I got a notion: Might I make all my constant chord wing ribs in a single pass? Knowing that people often encountered challenges with multiple blanks welding together while being routed out I decided to experiment - I...
  4. gicummo

    wing rib gussets

    Hello everybody; I have a problem, I'm traying to resolve it by two or threee differents ways, but I want to know from you why I could be wrong or wright. I can not find 1/16 plywood for the gussets where I live, minnimun 3mm and it isn't very good; so I build my own 1/16 gussets in three ways...
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