Two of these engines, the enlarged single-row Hornet B described here and the R-1830 Twin Wasp, were of near-identical displacement (1860 vs. 1830), although the fourteen-cylinder Twin Wasp was more complex and costly than the nine-cylinder, single-row Hornet B. The Twin Wasp was by far the more powerful engine though, even in its early versions it produced 800 bhp to the Hornet B's 575 bhp. Having more cylinders per the same displacement also creates a smoother engine, since the individual pistons are smaller and lighter, and the stroke is shorter, which reduces the vibration of reciprocation, and therefore crew and mechanical fatigue. The reduced stroke also allows for a higher maximum RPM limit, since the mean piston speed is reduced, the distance the piston has to cover per each engine revolution being shorter.