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  1. montecarlo

    montecarlo Member

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    Parts of an (Airplane) Engine

    Discussion in 'Research' started by montecarlo, Nov 21, 2020.

    My character crashed his plane. Whoops, what an idiot!

    He needs to get a small flywheel. I figure there should be some part of the engine that can be used to make a flywheel. Any heavy disk with a hole in the center will do, preferably between 3 and 6 inches.

    Thoughts?

    Edit: small single engine propeller plane, is as specific as I've gotten so far.
     
  2. SethLoki

    SethLoki Retired Autodidact Contributor

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    There’s quite often a flywheel in the starter mechanism of propeller engines. Older ones were hand cranked and their momentum would be used for, effectively, a jump start. I’d be confident with the newer ones that the hand cranking is just replaced by a motor... so, yes, they exist.

    eta...but not 3”. 6” might be rare too. They tend to have their weight over a bigger diameter. Plane would need to be a small one.
     
    Last edited: Nov 21, 2020
  3. montecarlo

    montecarlo Member

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    Gearbox to the prop, one of the gears perhaps?
     
  4. Naomasa298

    Naomasa298 HP: 12/210 MP: 0/130 Supporter Contributor

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    @EFMingo might be able to answer this one, I think he was an aircraft mechanic.
     
  5. EFMingo

    EFMingo A Modern Dinosaur Staff Contributor

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    Electrician on F18s. I don't know props. BUT, planes that small should have disk brakes. Just disassemble a wheel and strut to pry it out.
     
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  6. montecarlo

    montecarlo Member

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    That’s an idea! How big would the disc brake? We’re talking about the rotor, right?
     
  7. EFMingo

    EFMingo A Modern Dinosaur Staff Contributor

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    The rotor on a disk brake may be a little larger than you wanted, at about a foot in diameter, but if you were able to get it out, the circular central cover plate on the disk brake housing may work in the five to six inch range. Getting it apart may be a little tricky though.
     
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  8. newjerseyrunner

    newjerseyrunner Contributor Contributor

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    I have an observation... your pilot has the ability to pull apart his engine, but not make a flywheel? What kind of tools and resources are around? Is there some reason the flywheel needs to be machine precision or toughness? What's it for? Also, does it have to be round? For example, if you're making a gyrocompass, the flywheel in no way has to be round, it just has to be balanced, a long bar would work just as well as a disc.
     
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