Most galling was that his own Air Ministry appeared to be unable to account for 3,500 airplanes out of 8,500 frontline and reserve aircraft believed ready, or nearly ready, for service. “Surely there is in the Air Ministry an account kept of what happens to every machine,” Churchill complained in a subsequent minute. “These are very expensive articles. We must know the date when each one was received by the RAF and when it was finally struck off, and for what reason.” After all, he noted, even automaker Rolls-Royce kept track of each car it sold. “A discrepancy of 3,500 in 8,500 is glaring.”