deniasol Posted October 10, 2012 Report Posted October 10, 2012 The checklist says not to exceed 700 rpm during engine warm-up until the oil pressure reaches 40psi. Unfortunately the checklist is not very specific in that it does not take into account field elevation or outside air temperature. Try to reach 40psi oil pressure at an elevation of 13.300 ft. (La Paz) and you will see that it will take 1000 rpm to reach that pressure. At 700 rpm you will get 30psi at best.
Ntr09 Posted October 11, 2012 Report Posted October 11, 2012 (edited) That is irrelevant and probably normal because the DC-3 isn't usually operated from that height. When the Cyl Head temps get to 100c you should be good to go.-NR Edited October 11, 2012 by Ntr09
deniasol Posted October 11, 2012 Author Report Posted October 11, 2012 That is irrelevant and probably normal because the DC-3 isn't usually operated from that height. When the Cyl Head temps get to 100c you should be good to go.-NRThat is irrelevant and probably normal because the DC-3 isn't usually operated from that height. When the Cyl Head temps get to 100c you should be good to go.-NRLot's of DC3's are/were operated there. Also C-46's, DC4's, DC6's.
Ntr09 Posted October 13, 2012 Report Posted October 13, 2012 Well I guess you'll have to ignore the oil pressure a bit until you're in the air then?-NR
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