here's a short clip of my RTTL tearing up the lake :-) she has 2 MTroniks 600s driving 30 ml brass props both rotating in the same direction as in the real boats and she has 2 x 4300 mAmp ni-cad batteries in. Lasts for about 15 mins full chat :-)

John

Ahoy Maties! it's been a long time since my last posting. Happy 2019! I just completed my new scratch-built boat "Electric Barbarella". I tried to recreate (with some liberties) one of my favorite boats of all time, the 30-footer Chris Craft Sportsman built during the 1970s. it measures 24 X 8.5 inches. it is powered with a 9.6 NiMH 4200 mAh battery "nunchuck" pack (like the one used for paintball guns), brushless motor attached to a 30A Mtroniks Hydra controller and a 30mm M4 3-bladed brass propeller. The hull (my own on-the-go design) was made out of Balsa wood which later I fiberglassed. For the superstructure I utilized 2mm ABS plastic sheet material. To my surprise the boat turned to be a very stable and forgiving platform. I really feel a very close connection to this vessel as it is my first own hull design.😁

My second scratch build. SA Navy "Spioenkop". 1:80 scale. 2 Mtroniks 600 motors on the scale 40mm (home made) props running on 6v and Hobbywing 860 brushed ESC. Jetdrive (also homemade) runs on a 550 motor (I think!) and a 1060 Hobbywing ESC running on 12v. Chopper is a heavily modified Hobbyboss RN Super Lynx. Hangar door opens as well as chopper moves on helideck with worm drive and magnets. idea is that this would happen sequentially ... but haven't managed to sort that out as I am "electronically challenged". Suggestions welcome!

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 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

Just fresh off the shipyard, this is my version of an American made Uniflite (firm died several years ago) "Salty Dog" 28. its name is a Puerto Rican slang for escapade. From the same firm who designed and made the legendary Vietnam War Patrol River Boat (PBR), this boat was part of Uniflite's recreational boats line. For this one, I utilized a fibreglass hull I found on Ebay and did the rest with Ethylene 2mm plastic sheets. it runs a 9.6v NiHm battery, a 30A Mtroniks controller, a 3-bladed 35mm M4 bronze propeller.

Original design "Express Cruiser" type boat. Old home-made fiberglass hull built in UK in the 1970s and rescued from previous owner's garage. Model built during April-July 2015. Approx. 1/24 scale. in trying to emulate a Bertram Bahia Mar boat, I ended up with an originally fictitious design. Real life boat could be a 32-footer (9.75m) yacht. 3mm 9v LED navigation lights system. Runs on Mtroniks G2 3A Hyper BEC 6-12V 15A Constant controller, Biao123 A2122 brushless motor, and a NiMH 10.8v battery.

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

This 1/12 scale model is based on the Aerokits Solent Class lifeboat. Over the past 5 months it has been under going a major refit. I originally built the boat about 35 years ago and got the "bug" again last September. I've done the best I can to make a silk purse out of a sows ear.

Its powered by two MFA Torpedo 800 electric motors. power comes from two lead acid batteries, each rated at 12v 7Ah. Control is provided by two Mtroniks Tio ESC. The twin spade rudders are linked to one servo. Each ESC has its own receiver. I found that one receiver, using a Y lead, could not continuesly keep the two ESC supplied with a signal and they kept going into Failsafe mode alternately. I got round it by binding two receivers to the one transmitter. Within the engine compartment is an automatic bilge pump. Two probes detect if/when the water level rises to a certain amount in the bilge and activates the pump.

The model has working radar scanner , navigation lights, search light and blue flashing light.

If you want to see the boat in action please go to my You Tube page at https://www.youtube.com/user/coljacktonvale

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 latest project - Hull and some bits from a static display model, based on several photo's of Greek fishing boats, Mtroniks 400 motor, & 15A ESC, 12v SLA battery & 30mm 3 blade prop. Fish boxes from Coffee shop stirrers, Fish from long grain rice, Crew from Pound shop (Soldiers chopped & reshaped. )
She sails fairly well on first trial this week at Weymouth & Portland MBC, Miles Cross Farm lake . Hope to post video soon.
Chris

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.