Another plane identification Please.

[Jeffrey]

This is a harder one than the others as there is only the engine.

However my father-in-law worked in the Middle East and we now know he worked on Wellingtons, Beaufighters (thanks to answers on my previous post) and we heard him mention Liberators.

Any ideas?

Judy

[Michael J]

The engine is a single-row 9 cylinder radial so the aircraft is not a Liberator, the Consolidated design used twin-row, 14-cylinder Pratt & Whitney R-1830 "Twin Wasp" radials of 1,000 hp (750 kW).

The engine could be a Bristol Pegasus - this was used by early Wellingtons & the Bristol Bombay, a twin engine bomber/troop carrier which was used in the Middle East.

Michael.

[Flattybasher9]

"single-row 9 cylinder radial"

Why am I only seeing 8 cylinders?

Regards

Malky

[Michael J]

Radial engines have an odd number of cylinders per row.

Regards, Michael.

[Flattybasher9]

Afraid, not all. Several 8 cylindered versions were made as well as 10 cylinder ones.

Regards

Malky

[Michael J]

Yellow spots on front valve gear push rods.

Edit: With acknowledgements to Key Publishing Aviation forums 'The radial fires "around the clock". With an uneven number of cylinders in each row it will "fire and skip" and the order for a nine cylinder single row radial is 1-3-5-7-9-2-4-6-8 in two revolutions. A radial with an even number of cylinders in each row will not be able to "fire and skip".'

Michael.

[Flattybasher9]

I accept that you are correct. I changed the contrast in the original and found out it is not an 8 cylindered engine, although 8's and 10's were made.

Regards

Malky

[Michael J]

Thank you Malky, I was intrigued by your reference to 8 & 10 cylinder single row radials and found the Germans made diesel versions; these must be two-stroke engines.

Going back to the original picture, the aircraft may well be a Wellington - the small portion of fuselage visible above the wing on the far right appears to have fabric covered stringers, there are horizontal lines (or is it my imagination).

Michael.

[Flattybasher9]

8's and 10's, American also.

Regards

Malky