CB90 Model boat, 52 inches long performing 360 degree rotation on its own axis.

The Combat Boat 90 (CB90) is a class of fast military assault craft originally developed for the Swedish Navy by Dockstavarvet.

Powered by two 9.6v Graupner 700 turbo motors (no-longer in production).
Two Mtroniks Viper Marine 25 is a Brushed Speed Control designed specifically for use in RC model boats, it has a 25Amp motor limit and has proportional forwards and reverse functions

The San Pedro is a North American Push Boat.

She weighs in at 21 lbs
L.O.A. is 30"
Beam is 12"
Draft is 3" 5/8"

Her Engine Room Consist of:

Two MFA 919D 540 Type Motors with Single Ratio Metal Gearbox 2.5:1 Reduction
Two Mtroniks Viper Marine PNP 15
One Action Electronics Throttle & Rudder Mixer
Two 6 Volt SLA Batteries in series
Running time is estimated at 2 hrs

Designed by Vic Smeed in 1964 for the Magazine, Model Maker. Plan No. MM812. Found plans for free on internet and decided to build it as I did not have a vintage motor boat in my collection. Did not like the cabin so redesigned it. Powered by a Johnson 600 motor,2 * 7.2v 3300 mAh battery, 20 amp Mtroniks Viper Marine Controller and a 45mm dia course 2 bladed propeller. Goes really well.
Fitted trim tabs which finished the boats performance. Tested in rough weather and got 20 mins running on a fully charged battery.

My own design deep "V" hull with upper-works loosely to 1:15 scale replica of the Mitchell 31 boats previously used by various Hampshire constabularies in and around the Solent. The intention is to fit this model with a working, rotating, radar scanner using the servo motor and gearbox from an old video camera lens system; working lights including flashing blue police lights and a sound-alike "wee-wah" siren - just for the hell of it (and because I can)! Technical details: Hull length: 867mm. Construction: GRP layup with 1.5 and 3mm ply and balsa deck, cabin etc. Motor: MFA Torpedo 850. Propeller: X50mm plastic. Battery: 2 x three cell LiPo pack in parallel. Speed controller: Mtroniks Viper 25Amp. Radio: Hobby King 2.4GHz.

HMAS Fremantle (my first build and is still a work in progress) is a semI kit, hull and some fittings were supplied, most parts have been scratched built. She is powered by two MFA RE-385 5-Pole DC Motors, each controlled by a Mtroniks MicroViper Marine 10 ESC, supplied by one 6V 3.4 Ah lead acid battery, she has a running time of approx 90 minutes on the lake.

RAF High Speed Launch, speed 400 motor,Mtroniks Viper 10,ESC. 7.2v 3300Mah, model is 22".Scratch built, from photos and my own drawings scaled down and modified from my aerokits fire boat, I get about 15 minutes on the water running time on full speed.

built sometime in the sixties originally powered by 3.5 cc diesel, then glow motor as in pics OS 20 Max. now converting to Electric. Speed 600BB, Mtroniks Viper 10 ESP, 7.2V 3300ma NIMH. as yet only tank tested seems to have enough power, hope it gets up on the plane.