Anonymous
Anonymous asked in Cars & TransportationAircraft · 4 weeks ago

Since people are capable of making their own RC jet airplanes, why doesn't someone simply make one big enough to fit a person in it and?

ya know, get in it?

12 Answers

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  • 3 weeks ago

    Because scaling up model plans isn't as easy as it sounds.

  • 4 weeks ago

    The bigger the engine the greater the diameter of the rotor inside.   The bigger the rotor the faster the circumference moves.   The faster it moves the greater stresses on the metal.   You need very high quality metal to make the rotor and it is not something you will be able to buy at a hobby shop.   The best you can do is buy a small jet engine for a plane like the BD5J and use that.  

  • There's the SONNETT JET and the BD5J

    .

    One chap built a large scale B17 bomber that can be flown by a pilot.

    .

    https://www.youtube.com/watch?v=FNLQ3f5JXmg

    Youtube thumbnail

  • Anonymous
    4 weeks ago

    Mousefarts 🐁 💨 

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  • 4 weeks ago

    Yup, and end up like John Denver.

  • Anonymous
    4 weeks ago

    Cessna makes a lot of them. 

  • Anonymous
    4 weeks ago

    OK, why don't I pop a few of your neurons, since you are not exactly using them already?

    The largest RC plane ever made is probably still that model of a 747-400 (https://interestingengineering.com/biggest-rc-airp...

    Note the dimensions:

    Length: 5.43 m

    Span: 4.95 m

    Weight: 68 kg

    That indicates a scale of 13 to 1 when compared with the full size 747-400.

    A 747-400 has a takeoff weight of 396,893 kg. Scaling this by 13^3, we get 180 kg.

    The 747-400 has an operational weight empty of 183,523 kg; again scaled by 13^3, we get 83 kg.

    See the problem? That model manages to be how it is by being noticeably lighter and flimsier than the real plane.

    I do not know how much heavier they could have made the scale model to be able to weight triple, and how much heavier it would have needed to be to be strong enough to be 180 kg, but that is one aspect that aerospace engineers have to deal with: things do NOT scale linearly or harmoniously.

    You can check "ultralight" aviation and see how much they end up weighting; in all cases it is quite a bit more than that RC model.

  • Anonymous
    4 weeks ago

    Yea it's called kit planes.

  • 4 weeks ago

    maybe they havent thought of doing that yet

  • Anonymous
    4 weeks ago

    Get a clue. It's been done many times, dumbass. 

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