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Trolley Accumulators

A Trolley Accumulator is used for the ground-starting of Merlin engines.  It has a metal framed wooden box containing lead-acid cells with a small petrol engine and generator on the top or one end.  The cable connects to the battery socket on the aircraft.  MAPSL is currently restoring two of these for different clients.  

One Trolley Accumulator (upper picture) is believed to be the older, has a manual towing handle and pneumatic tyres.  Restoration is almost complete. 


The other Trolley Accumulator (lower right picture) is believed to be the newer.  It has a handle so that it can be towed behind a tractor and solid tyres.  Again, restoration is almost complete. 

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