Chris Insidethearmour Posted June 6, 2011 Share Posted June 6, 2011 Hi Guys I'm looking for information on the gearbox used in the A13 and Covenanter Cruisers. Specifically either technical drawings or photographs If anyone can help please do let me know! Thanks Chris Quote Link to comment Share on other sites More sharing options...
diver99 Posted June 6, 2011 Share Posted June 6, 2011 Have you tried the Tank Museum Library. David Fletcher knows a bit about it. Quote Link to comment Share on other sites More sharing options...
Chris Insidethearmour Posted June 6, 2011 Author Share Posted June 6, 2011 Hi and thanks Yes, I do have a request in for information, but I always like to cross reference when I can Chris Quote Link to comment Share on other sites More sharing options...
Adrian Barrell Posted June 6, 2011 Share Posted June 6, 2011 I have the workshop manual for the Wilson box. Quote Link to comment Share on other sites More sharing options...
Chris Insidethearmour Posted June 6, 2011 Author Share Posted June 6, 2011 Thanks Adrian I've been led to believe it had a Merrit Brown though, although I could be wrong as I am most certainly not an expert! Chris Quote Link to comment Share on other sites More sharing options...
Adrian Barrell Posted June 6, 2011 Share Posted June 6, 2011 Chris, it was a conventional four speed gearbox. The steering was achieved with Wilson steering units, one bolted on each side of the gearbox. These used pneumatically controlled brake bands to apply epicyclics that varied the speed of the tracks. There was also a further external band brake between the steeing unit and the final drive to give a skid turn and act as a main brake. The Merritt Brown combined speed change and steering in one unit and was first used in Churchill. Quote Link to comment Share on other sites More sharing options...
Chris Insidethearmour Posted June 6, 2011 Author Share Posted June 6, 2011 Very happy to bow to superior knowledge! Private Message on the way Thanks Adrian Chris Quote Link to comment Share on other sites More sharing options...
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