It was very useful to plan to push a 2 litre plastic milk bottle through, said bottle containing some water, for weight, and a new fan belt for a French sailor in a yacht becalmed in the Tasman who couldn't start his motor due broken fan belt. Critics said he needed the motor to power the generator, to power the 'fridge, to cool the Champagne.
Sadly, just before take off he radioed that he had found some wind, and would continue to sail to NZ and would save his money that had been negotiated for the flight. Was actually looking forward to the challenge !