8VRM

   The "marinised" 4JUR was never called upon to challenge the might of the Japanese navy, but it stood up to extraordinary rough treatment for longer than anyone could reasonably have expected.
    Apart from thousands of standard marine engines supplied to the Admiralty the company designed and produced a light weight high speed marine engine for 35 feet and 60 feet fast boats and a number of 30 feet vessels. The demand was for an engine within certain restricted dimensions and weight and there emerged, after discussions which ensued, the Dorman 8VRM eight cylinder engine. The eight cylinders mounted in banks of four, in vee-configuration with a uniform bore and stroke dimensions of 4. 1/8 ins., developed an output of 120 b.h.p. at 2,200 rev./min. and weighed only 10 pounds per horse power. One of the salient features of the engine was its overall dimensions as it was less than six feet long and two and a half feet wide.
    Boats powered with these engines were part of the equipment of many warships bearing famous and honoured names (including the Prince of Wales) and were to be found carrying out such important duties

as Admirals Barge and Flag Officer duties. They also gave sterling service as torpedo recovery launches, Air Sea Rescue craft and fast and medium speed boats.
    These Dorman engined vessels had an exceptional turn of speed and many a story leaked back to the factory of "exciting races" on the high seas as boats were in course of delivery from builders' yards to Naval Bases around the coast.
    Following the war those vessels, installed with the 8VRM engine, remaining in naval use were all to be eventually re-engined, however many were sold as war surplus complete with their Dorman engines and entered "demobilisation" as pleasure launches and fishing vessels. Production of these remarkable engines did not cease until the early fifties and many are still performing excellent services in all corners of the world well over two decades of active life.
    Because of their previous experience in building machine tools Dorman's, during the war years, had a tenth of their manufacturing capacity requisitioned for the production of Herbert Milling Machines, and many hundreds of which were produced in co-operation with Alfred Herbert Limited of Coventry: this was of vital





Ex-Naval Torpedo Recovery Launch fitted with three Dorman diesels;  type 8VRM.

Dorman diesel type 8VRM.

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Booklet home page                    Page index                    Pages 34 & 35                    Pages 38 & 39

Dorman Centenary CB 34-35 CB 38-39

many stout hearted employees were willing to surrender their spare time and volunteer for Home Guard, A.R.P. and Fire Watching Duties, this, they did in addition to working a seven day week, which in many instances involved working overtime. Fortunately no bombs fell on Dorman's; the nearest recorded was about a mile away; at the English Electric works causing very little damage to plant but more important no injury to personnel.
    It was at this point in time that the Company called upon the services of the local female labour to replace men who had been called up for the Forces. The womenfolk did not shirk their duties and readily took part in additional tasks such as A.R.P. and Fire Watching. One often wonders how many romances started and blossomed as a result of meetings which came about whilst attending these wartime voluntary duties.
   These were the days when some part of the country was being subjected to continuous air attacks and Dorman was appointed a Parent Company for the manufacture of Torque Amplifiers for Predictor Gears to be used by the Royal Observer Corps to detect and


importance to the nation's war effort as many factories, producing machine tools, had been halted by enemy action some never to restart again.
    Dorman built Alfred Herbert Milling Machines were to be found in all parts of Britain turning out the much needed munitions, they were even to be found operating in back-street workshops some of which were manned by no more than two men and a boy; small though they were these scattered workshops, under the jurisdiction of the Ministry of Supply, played an important part in the country's war effort.
    During the war years the company was to play an important role in the nation's war effort but in many ways they were more fortunate than most engineering firms engaged on vital work as Dorman's did not loose a day's production due to damage by enemy action. It would not be true to say that production was not affected, as, on numerous occasions workers were compelled to vacate their machines and take cover in shelters, during enemy air raids thus temporarily halting production.
    The company however were well prepared for any emergency which might have arisen at that time, as


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