They did, akshully. WW1 design, French (big surprise) design, if memory serves. Crankshaft bolted to plane, prop and cylinders spin together. A big ass gyroscope on the front of your place, which was the problem.
Good visual of master rod action in a radial engine. The next layer of complexity would be valve action controlled by a cam plate turning on the same shaft and push rods going out to the cylinder heads. An individual lobe on a radial engine cam operates more than one valve. Makes valve timing fun. Then add dual magnetos with slightly staggered timing. I won't even start on the pressure carbs. Then there are multi row engines like the R-3350 with 2 layers of 9 cylinders each, superchargers, and power recovery turbines like on the Super Connie. Power recovery turbines spin in the exhaust like a turbo charger but they send torque straight back to the main crank. So many moving parts and no fault codes anywhere!
When men get bored…
ReplyDeleteMade from wood. Very cool! Talented guy.
ReplyDeleteSo what the hell does it do? Looks like a Wankel engine.
ReplyDeleteIt's a model of a rotary aircraft engine.
Deleteradial, not rotary
DeleteYou're right, my bad.
DeleteNow build one with sleeve valves.
Deletehttps://en.wikipedia.org/wiki/Bristol_Perseus
Now, a rotary aircraft engine model would also be interesting. Fixed crankcase, bolt the propeller to the engine, whole thing goes round and round.
DeleteThey did, akshully. WW1 design, French (big surprise) design, if memory serves. Crankshaft bolted to plane, prop and cylinders spin together. A big ass gyroscope on the front of your place, which was the problem.
Deleteprecision <3
ReplyDelete-arc
Did you guys notice how similar the sound is compared to a real radial engine? I am amazed.
ReplyDeleteGood visual of master rod action in a radial engine. The next layer of complexity would be valve action controlled by a cam plate turning on the same shaft and push rods going out to the cylinder heads. An individual lobe on a radial engine cam operates more than one valve. Makes valve timing fun. Then add dual magnetos with slightly staggered timing. I won't even start on the pressure carbs. Then there are multi row engines like the R-3350 with 2 layers of 9 cylinders each, superchargers, and power recovery turbines like on the Super Connie. Power recovery turbines spin in the exhaust like a turbo charger but they send torque straight back to the main crank. So many moving parts and no fault codes anywhere!
ReplyDeleteEach bank on a radial engine has an uneven number of cylinders.
ReplyDeleteI was amazed at the, no vibration, that thing is mint. Real talented guy.
ReplyDeleteI guess Im the nerd! As she spun up I was waiting for it to puke and him with no eye protection.
ReplyDeleteR