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  1. C

    Solar Heating of Foam Core Composite Panels.

    Solar Heating of Foam Core Composite Panels. Composite aircraft articles and publications often mention the susceptibility of epoxy composite structures to serious strength degradation as a result of solar heating. Invariably, these sources state that white is the optimum color to reduce this...
  2. S

    Solar hot air hybrid cloud hopper microliter paraglider balloon airship

    Solar hot air hybrid unpowered airship glider Aloha everyone, I am new to the forum but excited to start on a project. The goal, to create an easily fly able and transportable airship. I have attached a preliminary design and looking here for proof of concept. the idea is a cloud hopper...
  3. E

    Hybrid light aircraft - Why no one did try that?

    (i got a low level of english) I remember when i was young i totally set in pieces and grand father style clock. wich was using pandulum and weight to use use gravity has a motion. Then i oppened an grand mother style clock. wich has a spring to turn + pandulum to get the motion. The things...
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