Still not sure of the root cause, but essentially the battery reserved exclusively for starting the engine was flat. So no way to recharge the main battery either.
Jeremy and I have thought over all the "if only's". But we take comfort in the knowledge that we had performed well in the often difficult first stage of the race and were positioned in the leading pack. And that lessons learnt include an upgrade to alternative sources of energy.
Bring on August 2013 - unfinished business.......