Decide for propulsion system

[boat88]

Hello,
I try to find the best propulsion system for a high speed planning boat,its a trimaran with these characteristics

Length=10m
Beam=5m
Maximum speed=60 knots
Cruise speed=50 Knots
Weight=4.5 ton

but i have problem to decide between stern drive and outboard propulsion systems.
Also i want to know how many propulsion systems is more proper for this situation(i.e. 2 or 3)?
Thank you.

[masalai]

Outboard is easier to install and remove if not to your liking.... How about a longtail or surface drive :D:D:D:D There have been images of 6 or so 250hp outboards around - wanna go for a record? 10 units?

[KnottyBuoyz]

Outboard is easier to install and remove if not to your liking.... How about a longtail or surface drive :D:D:D:D There have been images of 6 or so 250hp outboards around - wanna go for a record? 10 units?
I think 900 HP should just about do it Mas. :P

http://i675.photobucket.com/albums/vv114/texflot/redneck-yacht-4.jpg

[liki]

Definitely IPS for that platform, KnottyBuoyz ^_^