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Thank you everyone for the links. My next question- will the second row of a radial balance out the first row like a boxer? Or will that only work with 4 rows of cylinders?

Looking for plans- lots of references to the edwards 5cyl, but most of those links are expired. Are any others available?

Looking to build a small(ish) nitro engine, but I'd like to get some real performance out of it. I don't have access to real heat treating equipment, so steel/steel sleeve and piston is out of the question, so steel/cast iron is where I'm leaning unless I ring the piston. This will be multi...

Thanks for the insight.

maybe my amateur status with metallurgy has me confused, but my logic is telling me a material that is easy to machine would also wear away faster than a material that is more "difficult" to machine.

12L14 as a liner with moderate performance goals? im planning on sport running the engine

finally going forward with an engine build. i'd like to get at least moderate performance, but i'm going to build a test platform prototype, which brings me to my question: Ive decided on a steel liner, aluminum piston and cast iron rings. I know this is more difficult than say a steel liner CI...

Thank you for the link. I have that very book on my kindle but most of the arithmetic has not survived the transfer from print to digital, and is unreadable. there is however a great example of simple construction of turbine wheels and an example of multiple pass turbine construction(albeit only...

Looking to pair a boiler to an engine to extract about 7 or 8 mechanical horsepower. Will be flash steam design, and will only need to supply maximum steam for approx 90 seconds or so. Thought about a traditional piston style, but I have rpm requirements that will place a piston design out of...