You have GOT to be kidding me

[Rubberchicken]

Ian Drysdale (builder of the Drysdale V8 ) sent me these interesting photos. He tells me "the builder's name is Russell.Sutton, a Kiwi living in Australia. The motor (when finished) will displace 8 litres, it has a similar bore and a longer stroke than the XR600. I think the redline is 4,000 rpm or thereabouts, with a planetary gearbox made from a gear set out of a Caterpillar transmission, to bring it down to 2,500 rpm at the prop. Intended use is an "airboat". Its still missing crank and rods, but these are being made."

http://www.eurospares.com/graphics/e..._Radial_03.jpg
http://www.eurospares.com/graphics/e..._Radial_05.jpg
http://www.eurospares.com/graphics/e..._Radial_07.jpg
http://www.eurospares.com/graphics/e..._Radial_08.jpg

(source: here)

[Chad]

Originally Posted by Rubberchicken

(source: here)

bloody hell that dude needs theraphy

[Raven]

Chad.....wanna help me shoehorn that into my 'Alps frame?

[Rubberchicken]

I'm just wondering what the exhaust note will be, nine thumpers blatting away through very little muffling at all.

[Simon]

that wouldn't work. Its someone playing with your head. Think BMW boxer engine. Are the two cylinders in line? No. Why not? To fit in the two con rods on the crank, so for this you would need 8 and therefore the 8 cylinders all in different positions.

If i am wrong them someone please tell me cause i know i don't know much about engines but this makes sense to me.

If i am right then i'm sorry to burst your bubble guys.

[Kymmy]

You're wrong

You can have a central single big end that rotates to a single offset on the crank, all the radials attach to it. The hardest thing about a radial is ignition timing so that each one pushes at the right time.



Kymmy

[StumpyFingers]

Old world war one aircraft engines used rotary radials.
Look at the focker triple engined plane of the 1940's.

[russh]

Saw this at the Sammy Millers museum in the New Forest-

[Kymmy]

Radial engines are still used today in a variety of planes and other applications that need a lot of torque in a compact size.

Remember this??

Just look at the rotec site to see what I mean

Kymmy

[Sharribee]

Kymmy, sweetie, it's bad enough that you make me feel hoplessly inadequate with your IT skills now cut it out with all that stuff about engines