of the balloon to point diagonally upward; pulling in the aft weight would have just the opposite effect. Besides these I had a guide rope

some 60 metres (200 feet) long, which could also be used, at need, as shifting ballast.

All this occupied several months, and the work was all carried on in the little machine-shop of the Rue du Colisée, only a few steps from the place where later the Paris Aéro Club was to have its first offices.