Originally Posted by Limey Linda
Staggered engines put the two props closer to the centerline of the boat so that the hull is higher out of the water and thus less drag. If you like bling bling then go to offshoreonly.com and look at their classifieds.
Sorry to disagree, but I don't understand how it would get the hull out of the water more by moving the props closer together?
My understanding of staggering engines is that it moves the lateral centre of gravity closer together and helps with stability, lowers the centre of gravity as the engines are lower in the hull, and if you have the props turning in rather than out will give more speed although it will be harder to drive. The fore and aft centre of gravity will be moved forwards as well, but with many boats of the size you are looking at this will be an advantage.
Hull design will have a big part to play, and higher speeds are most often associated with a "firmer" ride, stepped hulls add speed by reducing drag - with a twin stepped hull the boat is riding on the rear step and the transom in flat calm conditions - less drag more speed.
The reason why not every boat has steps is that handling on corners can be compromised, and depending on the design it can mean a firmer ride - of course less drag also means more fuel efficient!