![](http://www.alamy.com/thumbs/6/C9B0FAB3-3554-4612-B15D-6927A1846774/2F4PTXG.jpg)
18-cylinder air-cooled radial aircraft engine
Size: 6269px × 4181px
Photo credit: © Akhararat Wathanasing / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: 18, air, aircraft, airplane, airport, aluminum, aviation, blade, circle, classic, close, cylinder, detail, engine, engineering, flight, fly, front, fuel, industry, machine, maintenace, mechanic, metal, motor, people, piston, plane, power, propeller, radial, repair, retro, star, transport, tubes, vintage