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Post Info TOPIC: Oldbury transmission trials


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Posts: 135
Oldbury transmission trials

Hi I have a question about the Oldbury transmission trials, which were conducted in March 1917th. After David Fletcher (Landships - British tanks in the First World War) there were 6 systems have been studied. Five Mark II were made available for and since these were not sufficient, the prototype Mark I (Mother) was still used. I call this with A:
A1) Mark II Westinghouse Petrol-Electric transmission
A2) Mark II William-Janney Hydraulic transmission
A3) Mark II Wilkins Multiple Clutch transmission
A4) Mark II Wilsons Epicyclic transmission
A5) Mark II Crochat-Collardeau (St.Chamond) transmission
A6) „Mother“ Daimler Petrol-Electric transmission

After Sir Albert Stern (Tanks 1914-1918 -The log-book of a pioneer) (here designated B, the numbers correspond to those of A) there were eight systems:
BX) Mr. Tritton double-engine Tank („Whippet“)
B6) Daimler petrol electric transmission
B1) Mr. Merz British Westinghouse electrical tramway transmission
B2) Mr. Wilson, (mit Vickers) Williams-Janney hydraulic transmission
B?) Heel-Shaw Company hydraulic transmission
B4) Metropolitan Company Major Wilsons epicyclic transmission
B3) Metropolitan Company Mr. Wilkin’s system of multiple clutches
B5) French St. Chamond petrol electric transmission
The variant BX is known, it is the prototype of Mark A, therefore remain 7 left. Variant B? there is no mention of Fletcher. There were also 5 Mark II. If the variant B? tested in the tank or were there only on paper?




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Posts: 1407

The tank you have designated B? is the one proposed by the Compayne Company with a hydraulic transmission designed by Professor Hele-Shaw of Manchester University. No tank was ever released for this design and it is thought to have existed only on paper, despite Stern listing it as if it appeared at the Oldbury trials.

Your tank 5 (the Crochat-Collardeau transmission fitted by FAMH) did not appear at the trial either.



#RevokeArticle50 - Britain to Stay in the EU. 


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Posts: 135

Thank you for the thorough answer. Is a gap in my archive again closed smile

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