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  1. B

    Honda GX-based aero engine (completely crazy nutter content!)

    Quite obviously. I'm just wondering what the original poster is considering. Here is a GX160 block -
  2. B

    Honda GX-based aero engine (completely crazy nutter content!)

    Something along the lines of this you're thinking? Four Briggs & Stratton flatheads welded together (cranks and cams welded together as well) -
  3. B

    O-100-- interesting new engine

    My 2a042 had a Slick on it. Non-certificated, I'm sure. Get 'em cheap off eBay ($68 shipped): Slick Aircraft Co 2220 Airboat Ultralight Aircraft Magneto RB Military Surplus | eBay
  4. B

    O-100-- interesting new engine

    Looks like two Slicks or that type in the video.
  5. B

    O-100-- interesting new engine

    twin mags
  6. B

    Reduction Gears

    Oh yeah. bunch of little rollers running on a wire!
  7. B

    Reduction Gears

    can be engineered to be incredibly lightweight, as well
  8. B

    Reduction Gears

    Whoa! Brilliant.
  9. B

    Inline Four Cylinder Briggs & Stratton

    In the comments field on one of the videos, near the end of the series, he reckons he's making about 5hp. Those are also iron blocks. Not sure what kind of flying they'd ever be doing. I was thinking, though, that it's a dandy concept for someone wishing to replicate an old air-cooled inline...
  10. B

    2a042 (4-stroke OHV opposed twin - 42ci approx 25hp) for sale

    Engine is sold. Waiting for me to pack up and ship! Bill
  11. B

    Inline Four Cylinder Briggs & Stratton

    'Cause it's not. Just a few shots of the young kid with his back to the camera working on crank in the lathe.
  12. B

    Inline Four Cylinder Briggs & Stratton

    I watched that entire series a few weeks back. They welded the individual cranks (and cams) together, but didn't describe nor show the process. Also hid how they supported said components in the block...
  13. B

    Reduction Gears

    Goggle 'em. That's what I did. Found a bunch of suppliers (with specific specs on their various offerings), but went to eBay to get some quick without having to register as a customer on yet another commerce website... Eventually I'll cobble together (and balance) an opposing disc setup and...
  14. B

    Reduction Gears

    I feel safe in estimating there are about five billion of them on eBay right now!!
  15. B

    Reduction Gears

    I just ordered 50 rare earth magnets with a minimum 1250lbs combined lifting capacity for $35. Going to experiment with a PSRU and see what I come up with.
  16. B

    The design-a-plane thread

    The fellow flying the Skypup with the Honda 390/redrive combo reports (if I remember correctly) ~55lbs all up, including the redrive.
  17. B

    The design-a-plane thread

    Auto, is that a beefed up Lifan 420cc clone? Not sure. Perhaps they're starting with the Honda block. Mentions a weaker seven bolt block. Still, a great price for a big-bore stroker motor, up to $814.93 if you want all the go-fast goodies. Cut-n-paste: -Makes 20HP on most dynos, much more...
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    The design-a-plane thread

    It's an attachment to this Yahoo Group - https://groups.yahoo.com/neo/groups/Small4-strokeEngines/conversations/messages There's two others there as well.
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    The design-a-plane thread

    In response to Topaz's observations - To answer the first one, the pilots head is drawn waaaay too small. Once I scale everything, the visibility may not be and issue. But it may be nonetheless, so definitely something to consider. Second - I'm using two axis 'cause this is basically a Skypup...
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    The design-a-plane thread

    Okay. Here's what I'm working on now. I really like Auto's Puffin and like an enclosed structure. We've also discussed the Skypup as well (seems to be a fast, easy and affordable build). So, using the basic Skypup form, I came up with the SkyPuffin: Work is insane right now, so I haven't...
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