Everything was as he had planned it--great fuel tank for the high-powered oil he would burn instead of gasoline, another tank to hold the liquid, life-giving oxygen he would need in the heights. The latest life-saving devices were installed: radio sending and receiving apparatus, flares, rockets, detachable compass, and a rubber lifeboat in addition to those appliances that, in an emergency, could convert the plane wing itself into a sea-going raft.