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A youtube machinist i know said i was a bad influence on him as he has gone down the model engine road......he wanted something for his engine to do, found these drop hammer plans, I took full artistic license and here is my "finished " ......still debating on adding a clutch to make it trip on command.....ordered line shaft hanger casting......however, enjoy

Does anyone know the rated voltage and capacitance in microfarads of a hit-or-miss engine's ignition circuit condenser? Instead of buying an off-the-shelf condenser from O'Reilly for $6.99, I'm thinking about using a regular polypropylene capacitor rated at 400vdc, of which I have a decent assortment on hand.

Just a quick report on a new motor just finished.

I have called it the Mini Buddy as a follow on from the Holly Buddy and Holly Buddy inline twin. Great that Patrick Strobel is doing the CAD plans for this one - thanks Patrick..

The design had to incorporate these design features
Easy to build Enough power to fly a free flight model around 24 to 30 inches ...

It's been a while since I posted, but have fairly recently started a build of LW Chenery's 15cc Aero Twin using castings and plans bought from Hemmingway kits.

It's a bit more ambitious than my Kiwi Mk II or the two Stirling engines that I had a crack at and documented here. Hopefully the build will go well!

Here are some initial shots of work on the main crank...

October 3rd & 4th Auburn Indiana, same great show same great venue