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  1. Birdmanzak

    57lb ultralight biplane glider

    [UPDATE 2010-10-12] This design has changed a bit since the original post. The competition I was designing it for - a Red Bull Flugtag in Sydney - was postponed to this year. I got in but, after they decided metal was "too dangerous" and "sinks" that it couldn't be used in any entries...
  2. Birdmanzak

    An aeroplane/car hybrid done RIGHT (almost)

    I was watching Top Gear and caught the second half of one of their stunts. They built a 1/5 replica Space Shuttle using a Reliant Robin as the Orbiter. I was skeptical, but the launch has to be seen to be believed. Part 1: - preflight setup Part 2: - the launch and, uh, flight...
  3. Birdmanzak

    Cutting composites

    I'm fortunate enough to have access to a table saw I can use to cut fibreglass and carbon fibre. I've been cutting a some parts with it that are a few plies of glass sandwiched between uni carbon, vac bagged onto a mould. The cuts are great, but the edges are razor-sharp. Can anyone suggest...
  4. Birdmanzak

    Another new guy - doing a hang-glider

    Hi all. I got here looking for info on vacuum bagging composites for my project. It's basically a hang-glider (hooray for not having to: rig controls, install instruments, or even spell the word "engine") for one of those Birdman competitions. The best part is that, apart from a 9 metre...
  5. Birdmanzak

    Pro/Engineer help - modelling composites

    I'm using Pro/E Wildfire 2 and trying to model my carbon/glass/styrofoam spar for analysis in Mechanica. I've found the Pro/Compsite module, which allows one to model cores and plies and then "solidify" or "cure" them into a single part. Trouble is I can't figure out the logic behind placing...
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