sentences:  A hatch was cut in the roof of the C-2 behind the wing for transfer of the fuel hose and passage of supplies from the tanker to the receiver.72-octane aviation gasoline would be received in increments of approximately 90 seconds duration.A tank was used to provide engine oil to the three motors, replenished by inflight deliveries of cans of Pennzoil triple-extra-heavy lowered on slings.