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3toes
10th February 2020, 07:55 AM
Documentary: Building The Rolls-Royce Merlin Engine (https://silodrome.com/documentary-rolls-royce-merlin-engine/)

Came across this and thought it was interesting


Documentary: Building The Rolls-Royce Merlin EngineThis documentary gives the best look we’ve ever seen into the process of building a Rolls-Royce Merlin V12. It shows the early design and testing phases before taking you inside the factory and showing the casting process, the machining, assembly, and testing.

There can be little doubt that the Rolls-Royce Merlin (https://silodrome.com/rolls-royce-merlin-engine/) is one of the most important internal combustion engines of all time, although that’s a big claim, I think it holds up.
The supercharged 27 litre aircraft engine powered the mighty Supermarine Spitfire (https://silodrome.com/spitfire-plane/) and Hawker Hurricane fighters of WW2, as well as the North American P-51D Mustang (https://silodrome.com/unrestored-p-51d-mustang/) fighter (built under license as the Packard V-1650), these aircraft were key contributors to the Allies having air superiority over the Axis forces. The Merlin also powered the Avro Lancaster, the Bristol Beaufighter II, the de Havilland Mosquito, and dozens of other aircraft during the Second World War and in the years afterwards. A version of the Merlin V12 with its supercharger removed was used as a tank engine during the war, known as the Meteor (https://silodrome.com/rolls-royce-v12-meteor-tank-engine-for-sale/).


The Merlin was an advanced design for its time, it featured an all-alloy design (“R.R.50” aluminium alloy), with a single overhead cam per bank operating 24 individual rockers and valves. Early engines produced approximately 1,000 hp but by the end of production this number had climbed to over 2,000 hp.


The above documentary runs at a little under 30 minutes, it includes ample amounts of war-era footage of the factory floor, with the narrator doing an excellent job of explaining what’s going on. I you have an interest in engineering and engines it’s a must-watch.

bob10
11th February 2020, 07:14 AM
Thank you for that. What would they have done without R.R. ? To mobilise and train the hundreds, if not thousands of unskilled people , to fit into their production system was a magnificent achievement. Even down to the little things like hollow valve stems filled with sodium, for efficient heat transfer, and after testing the new engines, selecting some at random to completely strip down and check , nothing left to chance. There would have been many allied pilots who owed their lives to the magnificent Merlin Engine. And it's a prime example of how in a time of total War, those who man the production lines also serve. Let's hope it's not a lesson to be learned again.

JDNSW
11th February 2020, 07:21 AM
Interesting to me because my father spent the latter part of the war building these - in Sydney. One of my prized tools is a large screwdriver made from a reject head bolt, with a cast alloy handle.