And what country can preserve its liberties if their rulers are not warned from time to time that their people preserve the spirit of resistance? Let them take arms. The remedy is to set them right as to facts, pardon and pacify them. What signify a few lives lost in a century or two? The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
But this is a rotary engine, not a radial! The truly loutish, but strong for its weight, aircraft engine of WWI. All the evils of radials, plus some more of its very own, including intense gyroscopic effects of the entire engine spinning (with the propeller firmly attached) around the fixed shaft. They killed many a trainee pilot.
Not at all, for there is no rear cylinder when the engine is operating. That is a scaled-down version of the French Gnome et Rhône 9-cylinder rotary engine series that powered quite a few fighter planes on both sides (the Germans used a clone of it under another name). The entire engine with the propeller attached spun around a stationary shaft. It provided cooling air flow by rotating itself, even at idle. Rotaries had a great power-to-weight ratio for the day, but controlling engine speed was finicky, and plane-handling was very different due to the intense gyroscopic effects of rotaries. They were slower rolling and turning to the left, with a tendency to pitch up. To the right, well, it really, really wanted to go that way, anyway! It rolled and turned to the right in a hurry, with a tendency to pitch down. They'd run their course of development by the end of WWI, and pretty much disappeared after that, replaced by their cousins, the radials, which continued to be developed up to mid-century.
Isn't this is a radial engine? There is a video linked below, of one running. The engine doesn't spin around, which would be disastrous for the poor victim straddling it. Or is it just installed so that it can accommodate the moped, instead of freely spinning as in an aircraft installation?
It's apparently a modern radial engine for large R/C models that mimics the look, though not the operation, of Gnome et Rhône 9-cylinder rotary engines from WWI.
Frog design, 9 cylinders
ReplyDeleteWhy not? Worked pretty well on airplanes. P-47, F4U, B-17, B-24, etc.
ReplyDeleteIs it real? I have been involved with motorcycling for a long time, vintage bikes too, and never seen this before, in any show, or any publication.
ReplyDelete1930s design. https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.reddit.com/r/MotorcyclePorn/comments/7culvm/both_vintage_and_obscure_a_1930s_era_peugeot_with/&ved=2ahUKEwjq35nwwYOPAxVwEUQIHa_iIX4QFnoECB0QAQ&sqi=2&usg=AOvVaw3MYtCLBfFmsRt5RaHWzoQC
ReplyDeleteA Poo-Joe?
DeleteThat's French, isn't it?
Figures...
I wonder how many fingers & toes were amputated by those sprockets. People were a lot tougher back then...
ReplyDeleteI spent a summer working around airplanes with radial engines. They are dirty, oily, troublesome things.
ReplyDeleteI flew a Navy T-28B in training. Air Force bases wouldn’t let us RON because the T-28 leaked so much oil on their pristine concrete ramps.
ReplyDeleteWhy not!?
ReplyDeleteTake four of those engines and make a quarter scale B-17?
ReplyDeleteIt's been done in one-third scale, although the radials were bigger.
Deletehttps://www.youtube.com/watch?v=DgA_4r7CosQ
Radial engines are wonderful, the sound and feel of a 1340 at daylight is incomparable.
ReplyDeleteYou should hear a 3350 at 60 inches of manifold pressure at 0200 in the morning. Hang on to your fillings.
DeleteBut this is a rotary engine, not a radial! The truly loutish, but strong for its weight, aircraft engine of WWI. All the evils of radials, plus some more of its very own, including intense gyroscopic effects of the entire engine spinning (with the propeller firmly attached) around the fixed shaft. They killed many a trainee pilot.
DeleteThe rear cylinders would have serious overheating issues I'm sure.
ReplyDeleteNot at all, for there is no rear cylinder when the engine is operating. That is a scaled-down version of the French Gnome et Rhône 9-cylinder rotary engine series that powered quite a few fighter planes on both sides (the Germans used a clone of it under another name). The entire engine with the propeller attached spun around a stationary shaft. It provided cooling air flow by rotating itself, even at idle. Rotaries had a great power-to-weight ratio for the day, but controlling engine speed was finicky, and plane-handling was very different due to the intense gyroscopic effects of rotaries. They were slower rolling and turning to the left, with a tendency to pitch up. To the right, well, it really, really wanted to go that way, anyway! It rolled and turned to the right in a hurry, with a tendency to pitch down. They'd run their course of development by the end of WWI, and pretty much disappeared after that, replaced by their cousins, the radials, which continued to be developed up to mid-century.
DeleteIsn't this is a radial engine? There is a video linked below, of one running. The engine doesn't spin around, which would be disastrous for the poor victim straddling it. Or is it just installed so that it can accommodate the moped, instead of freely spinning as in an aircraft installation?
DeleteIt's apparently a modern radial engine for large R/C models that mimics the look, though not the operation, of Gnome et Rhône 9-cylinder rotary engines from WWI.
DeleteThe gyro effect might have made some weird handling on that bike...
ReplyDeleteWait, I'm seeing pedals - is this a moped? Too cool, if so. I bet it makes a very distinctive sound.
ReplyDeleteFound it, running on a stand: https://www.youtube.com/watch?v=zTXOh006ttw
DeleteFull article here: http://www.dwrenched.com/2015/05/dwrenched_29.html
DeleteThat's the same engine that was in the hybrid Peugeot crossover SUV I rented this summer !
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