| airplane model help? ?

airplane model help? ?

JoSePh –666 asked:


lightest material to build and airplane body? is it obvious tht wings should have curves ? and how to decide the size of propellor

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Comments

2 Responses to “airplane model help? ?”

  1. linlyons on May 21st, 2009 1:55 pm

    what’s going to drive the propeller? rubber band? small engine.
    if it’s an engine, there will be a recommended prop.
    for a rubber band, you just guess.

    material? balsa wood? mylar covering?

  2. Ecko on May 24th, 2009 10:40 pm

    Solid foam as in polystyrene cups. This can have film covering and internal stiffening tubes (carbon fiber or aluminium may be used in some cases..

    Balsa wood with frames and covering can be light too - has been popular for a long time because of that. Glue can add significant weight if not careful.

    The motor is part of determining propeller size. Hobby magazines and books have useful information for building planes. Electric motors often need gearboxes to match to the propeller rpm..