Lancaster Engine markings from airframe What do these mean

[spijkerfestijn]

We received a Rolls Royce XX engine that was found by a fisherman. We try to find out where it belongs to.
it seems to be a Lancaster Mk.I engine. Sadly there were no id's on the engine anymore but there were two signs on the airframe
can anyone help me out whit these. We hope to track the aircraft on which the engine was mounted/

image 1: The engine with tho propellors left

image 2:
Powerplant Merlin XX
Serial PP: 8206 (? Is this the engine serial? they are normaly 6 numbers)
PORT OTBD (port outboard engine)

Image 3:
08103-2
M 1954 (?) S or 8
a unknown mark
and it seems there was some text on the left bottom of the marking.

Question was also placed on an other forum and I wrote the RR heritage trust for some help.

 

[Snautzer01]

Lets summon E Engineman and Crimea_River

 

[Michael Hope]

The propeller is the Hamilton Standard type or DeHavilland licensed built copy.

 

[mjfur]

Merlin XX (RM 3SM)

1,280 hp (954 kW) at 3,000 rpm

1,490 hp (1,111 kW) at 3,000 rpm, +16 psi (110 kPa) boost, with 100 Octane fuel at 12,500 ft (3,810 m).

Beaufighter Mk.II, Defiant Mk.II, Halifax Mk.II, Halifax Mk.V, Hurricane Mk.II and Hurricane Mk.IV, Lancaster Mk.I, Lancaster Mk.III, Spitfire Mk.III[12]

Had a two speed supercharger giving boost pressures of up to + 14 psi (97 kPa).[13] First production Merlin XX, 4 July 1940.[6][nb 1]

List of Rolls-Royce Merlin variants - Wikipedia

en.wikipedia.org

 

[Crimea_River]

Sorry but I'm not a big help on Lancasters but I think matching engines to airframes is pretty tough. I can only suggest that if you can get the GPS co-ordinates of the find from the fishermen, you may be able to narrow down the search from crash archives.

Question - why did you assume its a Lancaster Mk I when other aircraft used the engine as well?

 

[spijkerfestijn]

Sorry but I'm not a big help on Lancasters but I think matching engines to airframes is pretty tough. I can only suggest that if you can get the GPS co-ordinates of the find from the fishermen, you may be able to narrow down the search from crash archives.

Question - why did you assume its a Lancaster Mk I when other aircraft used the engine as well?

The port outboard text indicates its a 4 engine aircraft. The Merlin XX was used in Lancasters and Halifax. based on the pictures someone with more knowledge as me assumed it was a lancaster. because they XX was used in Mk.I Lancs this was my conclusion. But I know assumption is the mother of all .....
I hope someone at the Rolls Royce Heritage trust can help me out.
In the past I found out that the markings on the aircraft parts give a better indication of the type of aircraft.. so I hoped someone could help me out by saying M1954-S stands for a certain type of aircraft.

 

[Engineman]

Good relic,
Yes, Port Otbd will be 4 eng. The prop dia is accurately measurable. That, and the mounting might give a better id of type. Very specialist subject, possibly better info from Just Jane team at East Kirby, or BBMF, or Elvington Halifax team or Canadian Warplane Heritage or, a real specialist researcher.

Cheers

Eng

 

[spijkerfestijn]

But Does anyone where to find the codes which are stamped in the metal?

 

[Crimea_River]

It may help to state where the stamped part came from. Was it attached to the engine in your pic or anotther part not shown?

 

[spijkerfestijn]

It may help to state where the stamped part came from. Was it attached to the engine in your pic or anotther part not shown?

I thought I already mentioned that. It was on the remains of the frame attached to the engine.

 

[Wurger]

The inspection stamp looks like the MCO. So it may indicate the Morris Cowley Oxford manufacturer.

 

[Engineman]

Hi,

I think you can get a good id on this, with research. The details mentioned so far are all useful and another one. If you look at post #10, you can see the electric starter motor and sticking out by it, a conical casting with a steel drive end. This is an extension on the manual turning drive. This is usually short on all the pics I can find, but this is distinctively long and must match a type, with 4 engines. The propeller particularly should be identifiable and as I said, the dia can accurately be measured.
Good luck.

Eng

 

[ThomasP]

If you can find good images of the engine mount framework for the Lancaster Mk I, Halifax Mk II, and Beaufighter Mk II, you might be able to definitively determine which airframe type the engine came from (if you have not already done so). The Beaufighter Mk II reportedly used the ~same engine QC unit - including the engine mount framework.

 

[MiTasol]

I have recently posted the Lanc I and III descriptive manual at Avro Lancaster and Lincoln manuals
You should be able find the information you need to confirm/reject that is a Lancaster engine mounting frame in that manual.

 

[AL90]

The inspection stamp looks like the MCO. So it may indicate the Morris Cowley Oxford manufacturer.

View attachment 709654

I agree , the inspection stamp MCO is Morris Cowley Oxford which was No.1 Civilian Repair Unit who repaired complete Spitfires & Hurricanes, saw similar on Spitfire wreckage. Salvage of other types was carried out by 50 Maintenance Unit, who were based at the Cowley site, and transported wrecks of all types in for salvage and repair of usefull components by MCO. The plate looks like it is just to identify that the item was salvaged and reworked by MCO.