RE: diesel rc airplane motors
Francis my Irvine 40 diesels are my work horses 6 or 7 and most upgraded with davis heads
they are in my apache 2 and 3 VMAR and a couple of others all high wings and beefed up tundra style for rough fields swinging 12x6 wood zingers they do fine for my flying, one of the apaches got upgraded
ti an Irvine 53 conversion and its hot martin