F-18 v4 Help

Discussion in 'Scratchbuilding!' started by gbm1963, Jan 13, 2017.

  1. gbm1963

    gbm1963 Rookie

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    I printed off my plans at the print shop no problem. Built the plane and it turned out great! However, I did not notice that the plans printed out about 85-90% of original size.Ooooops!! So now I am faced with using a smaller motor/prop, or cutting up my plane to make the 2200 and 6x4 fit. I was thinkin about a 2000Kv motor but haven't decided......Any advice would be great. Also, in the future how do I avoid this issue at the printer? Thanks to all.
     
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  2. JettaManDan

    JettaManDan Top Gun

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    just need to make sure they print at full size...when you DL the plans and look at it full size on the computer it should show the page size..usually 28x40 or so....

    i would personally make the prop slot bigger and use the standard 6x4...even at 85% you shouldn't have much of a problem. That and the 2200kv motor will make a 85% plane perform very well. No reason to really downsize the power setup....
     
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  3. When at the printing shop make sure to tell them to print at 100%, when the plans are ready and before you walk away with them on all the plans are a scale. Have them measure it with a ruler and if it doesn't match have them redo it free of charge.
     
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  4. gbm1963

    gbm1963 Rookie

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    Thanks for the help.
     
  5. gbm1963

    gbm1963 Rookie

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    Thanks.
     
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  6. XDmToter

    XDmToter Ace Pilot

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    If you've already started cutting foam with the small plans, and are now looking for a motor recommendation, here you go.

    Suppo 2208-8 2600KV
    APC 4.75x4.75
    20 Amp ESC
     
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  7. Dave748

    Dave748 Ace Pilot

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    my F-18 V4 was very sensitive to weight. One or two ounces made a big difference. Which ever motor and prop you go with, try to keep the weight down on the remainder of the build and I'd suggest the first few flights with a 3S 1300 mah battery. A 10 to 15 percent reduction in wing are will make a difference in how the plane flies. Get it up several mistakes high on the maiden and get comfortable with how it reacts. If your transmitter can handle dual rates set up the ailerons with dual rates. Let us know how this goes.
     
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