In case you've ever wondered how radial engines work.

[RogueLeader]

Here is a really cool video that explains how a radial engine works. It is a highly detailed wood replica. All I can say is wow.


linky

[docsteve]

Very cool.  These engine were the height of piston super-power. 

When I was first breaking into aviation there were still a lot of DC-3/4/6s flying, I was flying a Twin Beach, the USCG still had the Albatross:  the sonds around the airport were different, very distinctive.

Legend has it that the Connies, the DC-7s, and ultimately the Albatrosses couldn't fly any more because the 115/145 avgas was not made any longer, and take-offs at less than rated power were either not authorized (USCG) or impracticable given the reduction in gross.

You could always tell a round-engine crew by the oil spots on their shirts.  Sometimes just cranking the engines through would not clear the bottom cylinders and you had to pull the plugs. 

Great memories.

[PHall]

The one thing to remember about radials. If they're not leaking oil, the oil tank is empty.