Inside Out Library · ExploreComparing maximum pressures in internal combustion engines (1922)NASA Technical Reports Server (NTRS) · leaf 41 Fig-3. Time for fracture. Engine speed, 1500 r.p,m.NASA Technical Reports Server (NTRS)Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.More pictures from Comparing maximum pressures in internal combustion enginesMore like this