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Forum: Aviation History and Nostalgia

5th Feb 2010, 02:07

Replies: 61

Pratt & Whitney R-1830 Twin Wasp radial piston firing order

Views: 52,717

Posted By airamerica1968

Engine Cylinders & Firing Function

Thank you for your replies. I understand the physics of a 4 stroke power delivery and the generated crankshaft pulsations in the operation of a radial engine and your good postings cemented my...

Forum: Aviation History and Nostalgia

15th Jan 2010, 12:18

Replies: 61

Pratt & Whitney R-1830 Twin Wasp radial piston firing order

Views: 52,717

Posted By airamerica1968

Looking at the rocker arm covers on both the...

Looking at the rocker arm covers on both the R-1830 and the R-2800 engines, it appears they cylinders are in line so that 9 thrust strokes would be the case. I note in the cylinders are offset (front...

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