RC Boat EDF brushless **like Spirit of Australia**

[petrovic2]

Hi everybody!

I need help with construction EDF brushless boat.

My idea is constructed EDF boat like Spirit of Australia who can make speed about +70km/h..

I want use some hull maybe some Catamaran , and use it with:

EDF Ducted Fan Unit 7Blade 5inch 127mm

and 557g brushless inrunner and 8-10Lipos :))

Can me tell what a powerfull must be the power unit to power up this boat for some speed?

I need help, and i hope i find him here :))

Bye, thanks for help

Petrovic