The Model is scratch built from Photos and profiles of the internet it is around 52 inches long and currently runs on two Graupner 700 turbo motors (14.4v) and dual Mtroniks 25A ESC (12v) running twin contra rotating 45mm props, this model can spin on its own axis like the real boat but does not use waterjets due to cost. Completed in 2017.

Whats a CB90

Its a Command Boat 90 originally built by Docstar in sweden and later also built in the USA under licence.
The boat has a multi role capability and has be used by the Army, Police, Coast Guard and Ambalence Service

Originally a Military craft for coastal waters and rivers with a shallow draft and powered by twin water jets this 15 ton Aluminum boat can deliver half a platoon directly on to beach heads via its landing craft type single man door at the bow.

This craft has excellent manoveraility and can crash stop ( go into full reverse and stop) in 1.5 x its length. No-wonder the american's wanted this boat.

Video of real boat

a 30"scratch built pt. boat, I built hull from .8mm ply using a resized eezebilt 20" plan.
the deck fittings were copied as best as I could from photos and drawings found on line. powered by 2- 2200kv brushless out runner motors through 2 20 amp speed controllers. twin contra rotating props twin rudders fast and light a pleasure to build

2

Hi MBW,s Tinplate clockwork torpedo/submarine propulsion is twin coaxial contra rotating props totally scratch built handmade. its about half way through the build at the moment just doing the clockwork ballast timer and compressed air system. Cant wait to chuck it in the oggin.

HMS Nelson, scratchbuilt to 1/8" scale. Powered by two motors driving twin contrarotating shafts with three blade props. She sails on Lake Lisgar, Tillsonburg, Ontario.
I decided on Nelson as she took part in Operation Pedestal, from which I made a 1/216" waterline model of SS Ohio, the ship that saved Malta.
She took a little over 600 hours from solid chunk of basswood to launch. Probably info collection took as long!

Built from Aerokits kit originally but rebuilt/modified many times since then!
Twin 540's (geared) 6V Pb Gel battery for drive. 3 Blade 50mm props (contra rotating) lights (cabin, running Ights and searchlight) on 4.5V Deacs. radar scanner and winch on same supply, radar display screen on a single AA 1.5V.

Fleet Systems radio and speed controllers, Futaba rudders servo, RCME servo driving cam/micro switch unit for lights etc.