At 1912 GMT about 22 gls 100-oc remained from 50 . The store than was 23 gls 87-oc + 22 gls 100-oc = 45 US . @ 41 gph in low dense air the remaining flight time was 1h05m - 1h06 m . Add to 1912 = 2017 GMT . Before running dry however , carbureters deliver up and down supply . The remaining 22-oc gasoline was used from 1845 GMT , switching to container was possibly the reason why no radio call was given at cue ; it being also possible that crew was busy trying to receive bearing result that was asked for @ 1815 GMT . Air resistance , btw , is for land vehicles same as for aircraft : the labour needed is Pa = 1/2 R . Cw . A . V^3 with Pa = air resistance x way ; R = air density ; Cw = resistance coefficient ; V = speed . If measured in S.I. , outcome is in dimension Newton x m/s = Watts . The Johnson reports have for the inquiry not been used , other than for gph figures predicted ; remaining figures come from meteo versus true weather & radio calls . I am busy translating the 1996 articles , first on fuel loading @ Lae . H.