propeller

  1. D

    Number of propeller blades?

    In terms of thrust, why do piston/turboprop aircraft have differing numbers of propeller blades? I'm assuming 3 blades create more thrust than 2, but then why don't more aircraft have 4, or 5, or even more? I would think that the more blades you have, the less work each individual one does...
  2. S

    how to make a propeller for a battery powered toy boat?

    i m makin a science model of a small motorboat. and i want to make a propeller for it.
  3. M

    how do you make a boat go fast with an air propeller?

    We are making styrofoam boats in science and we need to use the propeller to push air not water. How do we make the boat go faster with: Hull shape and Propeller blades. The boat will be powered with a solar cell and we can't change it, add a battery, or alter the motor. The only things we can...
  4. U

    what is the name of the hat that has a propeller and is colourful?

    actual name.. http://www.google.com.au/images?um=1&hl=en&rlz=1T4SKPB_enAU383AU383&tbs=isch:1&q=propeller+hat&revid=2049023199&sa=X&ei=FFT_TPKsEcj4cfXZ8PMF&ved=0CC4Q1QIoAA
  5. B

    Looking for a spare RC boat propeller?

    the propeller is for the Hobby Engine 1:25 Scale Sport Club Powerboat (link if you need it http://www.marionvillemodels.com/rc-shop/hobby-engine-sport-club-speed-boat_HE0903.html) i have been searching for it everywhere but i cant seem to find a spare and my boat is useless without a working...
  6. R

    Is a boat propeller considered a wheel and axle?

    other examples of a wheel adn axle are doornobs, wrenches, ferris wheels a wheel and axle is a simple machine conssisting of two circular objects of different sizes. this is the definition from my book. if a propeller isn't a wheel and axle then what else on a boat is?
  7. J

    What happens behind a propeller?

    Where an aeroplane has wing-monted propellers, what sort of lift and drag occurs behind the propeller? Does the wing there have good or bad aerodynamics?
  8. J

    What happens behind a propeller?

    Where an aeroplane has wing-monted propellers, what sort of lift and drag occurs behind the propeller? Does the wing there have good or bad aerodynamics?
  9. B

    could a fan be used in place of a propeller on small aircraft?

    I'm talking about a very small aircraft, in the weigh range of a light glider. Could an industrial sized fan be put on the front and provide significant thrust?
  10. M

    Can anyone help with information on how to remove a mercury outboard propeller?

    Motor dates back to 1980's and has a blue stripe if that's any help!! Thanks!
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