Flat-16
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Coventry Climax 1.5 L flat 16 FWMW Source
A flat-16 is an internal combustion engine in flat configuration, having 16 cylinders.
Few examples are known. Porsche ran some tests with a flat-16 version of the Porsche 917, but it was never raced. Coventry Climax developed a flat-16 engine designated the FWMW; work on this continued through the later years of the 1.5 L formula with Lotus and Brabham the likely recipients. The formula ran out before it showed any clear advantage over the V8.
| Piston engine configurations | |
|---|---|
| Straight | Single, 2, 3, 4, 5, 6, 8, 9, 10, 12, 14 |
| V | 2, 4, 5, 6, 8, 10, 12, 16, 20, 24 |
| Flat | 2, 4, 6, 8, 10, 12, 16, H |
| W | 8, 9, 12, 16, 18 |
| Other inline | H, VR, Opposed, U (Square), X |
| Other | Hemi, Radial, Rotary, Pistonless, Deltic, (Wankel) |