This official USAF flight record documents a month in the combat tour of 1Lt Donald L. Engebretsen, an A-1 Skyraider pilot, logging 136 flight hours across 70 sorties in December 1969 -- 88 of them in combat. Records like this one quantify, in stark administrative detail, the grueling pace of operations flown by Vietnam-era Skyraider pilots. Project: 218970