I built this about 40 years ago, quite a rarity now I believe. Has not been in the water for about 30 years. I plan on bringing it up to date with speed controller and lipos as it used to use large heavy batteries and manual speed controller powered by servo. 👍

I built this from scrap wood i had lying around i bought the tanks from china the motor is a 850 mfa with a speed controller powered by a 11.1v 5000 mah battery
still in progress 😉

Brought this vintage Aero Kits RAF Crash Tender for £50 from Newcastle area, it is the 34in version.
To my surprise at home I found that it had a Bullet 30 motor installed these motors were the top drawer motor of early fast electrics in the early 1980's and its the only one I've ever seen, it can run on 24v and pull around 15A giving 300w not bad for a brushed motor.
due to the power of this motor I have modified the hull under the water line with turn fins and trim tabs to reduce torque roll and improve turning stability, the underside is incorrect already as it only has one propshaft, where the original had two and I believe that both props turned in the same direction.

The Pictures here show some of the work in progress I have remounted the motor and added a speed controller rated at 24v
I have remade the stern compartment and rudder gear under it.
I have blocked windows and foamed the front half of the boat.
made missing parts and repaired delaminating ply.

Note old ply is not as good as modern, the glue is not as water resistant.

Have painted the hull and have just ordered the decals from Cornwall model Boats :-https://www.cornwallmodelboats.co.uk/cgi-bin/sh000001.pl?WD=hose%20fire&PN=becc_fire_tender%2ehtml#aB_2dFTS1_2e32

The 34in is 1/16 scale

Fitting can be brought but many are cast white metal and can add weight to the boat, I have made two water cannons and plan to buy plastic fittings from this site.

This has turned out to be a task that is difficult to assess how much effort and money to spend on a hull that has been built by someone else (say no more).
Have just finished the steps for the stern compartment.
Painted and now for the test run.
the Bullet 30 motor ran well between 14 and 18v,

First run on the water, was not pushing it just checking temps and drive. The batteries were at about 25% down on top speed when I decided to make a video. The Tornado 850 motor and 60A speed controller seem well suited to the job.

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

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With my boats getting routinely stranded in the middle of nowhere, I felt compelled to commission a rescue vessel and "Triton" was born. "Triton" is a Springer-type tug push boat. With a hull and superstructure consisting of an “Indiana” style command cabin, it was built using a pretty basic birch plywood American kit designed for swimming pool water polo. Kit altered to resemble a fictitious Salvamento Marítimo (Spanish Coast Guard) unit following Salvamento Marítimo’s actual boat markings. Equipment and deck layout inspired on actual Springer tug push boats supporting larger vessels and barges found in US and European ports and rivers. Model built during September – October 2015. Approx. 1/18 scale. Real life boat could be a 30-footer (9.14m) vessel. Equipped with 9v LED navigation lights and sound system. Powered by an HPI Racing 1145 Gt 550 Motor, NiMH 7.4v battery, a 3-bladed 44mm propeller, and a 6-12V 320A RC Ship & Boat R/C Hobby Brushed Motor Speed Controller.

Please note that this kit includes Motors and couplings from Deans. All you need are the servos, speed controller and radio to complete this kit.

Enlarged version of Curlew from Eezibilt model range. 150% larger than original. Powered with 380 and Mktronics Electronic speed controller.

This boat was pulled up from our local pond by one of the fishermen .No one has a clue how long it has been down there but must have been a very long time .So I was set a challenge to sort it out I got one of the servos working and the speed controller working OK just shows no matter how long something has been under water it can work.
I did get the motor running but as you see not wise to use.So I have put some pics on of my progress up to now to have a look at.

HI I done a lot of work on this fire boat with the paintwork it still need a lot of work to be to her she is 46" long .
I put in a new brushless motor and speed controller runs on 7.2 v batteries

Nice little PT Boat I bought off Gordon @ our Club it runs on a 7.2 battery with a Electronize FR30 Speed Controller with BECs twin 540 Motors with
plenty of detail on it

First time in the water and under power. to get the correct trim (ect) I built a test tank from ply and lined it with polythene. To stat with There were two 12V lead acid batteries and the weight of the two motors, she just simply sat there, even the props were above water. After approx 30lbs more weight the correct water line was reached, the white line on the hull follows the sheer line of the main deck and isn't the true water line. So with the two batteries hooked up in parallel, the 12V Proboat Speed controller and the two Duma 12V motors as can be seen quite a good performance.