Recent content by ErikBolyard

Unfortunately, not much is left of the plant. The Yankee Air Museum purchased a part of the factory, and they use it to store many of their larger aircraft (some of which are still flight worthy). The remaining 95% of the factory was auctioned off and demolished in the early 2010s. The museum...

Hello everyone, I’m in the early stages of working on a 4 cycle “Powerhouse” engine by Jerry HowelI, and I had a few questions for the experts here. 1. What type of stainless steel would be best for making the exhaust valves? 2. Does anyone have any recommendations for making custom springs...

All parts were done manually except for the spokes on the flywheel. I don’t own a decent rotary table at the moment, so it was indicated on the center bore and cut on a Tormach.

Hello everyone, 17 year old engine enthusiast here. I’ve been working on a few projects for awhile now (with some advice and aid from my much more experienced father). Currently, I’m in process on both a Jerry Howell Miser Sterling engine and a Powerhouse 4 Cycle ICE. I also have the plans for...