Bob I believe that what you are looking for is a Hit and Miss single cylinder marine engine. A single cylinder engine with two large flywheels which at low speed sometimes only fired on every second or third revolution. There were several brands and some had two cylinders. Many were gas powered but there were also diesels. You can find plenty of information on them on the net. They were used on work boats, shrimp boats, and many other purposes. Most had no transmission and were connected directly to the shaft, reverse was achieved by killing the engine and spinning the flywheel the opposite direction to restart the engine in the other direction. There are many kits available to build new ones and they are collected by many. Many were used for land based purposes also, including powering pump jacks in remote locations by the oil industry. In far West Texas it was very rare at night not to be able to hear at least one or two thumping out their tune in the far distance. Perpetual lurker and future looper Bruce

We did a couple movies on hit miss and steam for all interested: https://www.youtube.com/watch?v=ACmXLLqTnSs (Flywheel Engine Technology) Steam engine technology: https://www.youtube.com/watch?v=XVrsOu42VGk They really are fascinating. MM On Nov 20, 2013, at 9:35 AM, BRUCE MOORE wrote: > > Bob > I believe that what you are looking for is a Hit and Miss single cylinder marine engine. A single cylinder engine with two large flywheels which at low speed sometimes only fired on every second or third revolution. SNIP

Are those the ones called "Popping Johnnies?" * * * * * * * * * * * * * ** D C "Mac" Macdonald ** * Grand Lake & OKC, OK. * ** AGLCA (#217) & USPS ** ** (No boat currently) ** * USAF and FAA, Retired * ** Amateur Radio K2GKK ** * * * * * * * * * * * * * > Date: Wed, 20 Nov 2013 09:35:51 -0500 > From: 2bmoore2@embarqmail.com > To: great-loop@lists.trawlering.com > Subject: GL: Hit and Mis Marine engines > > > Bob > I believe that what you are looking for is a Hit and Miss single cylinder marine engine. A single cylinder engine with two large flywheels which at low speed sometimes only fired on every second or third revolution. There were several brands and some had two cylinders. Many were gas powered but there were also diesels. You can find plenty of information on them on the net. They were used on work boats, shrimp boats, and many other purposes. Most had no transmission and were connected directly to the shaft, reverse was achieved by killing the engine and spinning the flywheel the opposite direction to restart the engine in the other direction. There are many kits available to build new ones and they are collected by many. Many were used for land based purposes also, including powering pump jacks in remote locations by the oil industry. In far West Texas it was very rare at night not to be able to hear at least one or two thumping out their tune in the far distance. > > Perpetual lurker > and future looper > Bruce > _______________________________________________ > http://lists.trawlering.com/mailman/listinfo/great-loop_lists.trawlering.com > > To modify your Great-Loop subscription options (change email address, > unsubscribe, etc.) go to: http://lists.trawlering.com/mailman/options/great-loop_lists.trawlering.com