ENGINES
(See also Automobiles; Aviation; Jet Propulsion; Machines; Nuclear Energy; Railroads)
diesel: g58 8/22 18
smallest: g77 8/8 30
gasoline: g58 8/22 17-19; g56 12/8 21-23
heat: g58 8/22 17-19
hot-air: g56 12/8 23-24
orbital internal combustion: g72 8/8 29-30
rotary:
bacteria: ce 158
steam: g58 8/22 17-19
weapon: ad 125-126