On Thu, 2 Oct 2008 22:48:23 -0400, "Roger Long"
wrote:

No rudders. The jets are arranged so that neutral thrust can be produced
when the engines are in gear by directing water equally fore and aft. The
engines are put in gear as soon as it's time to move the boat and don't go
into neutral until stopped. There is reverse but it is just for clearing
debris.

I wasn't sure what a Carden shaft was till I looked it up. Our fifty
year old jet drive runabout has one. And no gearbox. Water deflector
for neutral and reverse.

Casady