Radial engine cutaway - GIF

[Altair]

Radial engine cutaway.




Previously:

Aircraft radial engine cutaway - GIF
Bristol Hercules double-row radial engine cutaway - photo
Double row radial engine - GIF
Plastic radial engine model - GIF
9-cylinder wood radial engine model - GIF

[Toolmaker51]

Appears a Double Row Wasp type, two banks of 9 radial cylinders.
A couple generations back, they built untold but massive quantities of them.
And a large percent of the world's population gave thanks; whether they knew it or not.