A quick ( 3 weeks) rough 35" balsa MaiamI powered by Turrnigy 28/30 outrunner , 3cell LiPo and 30A ESC made for my son who wasn't that interested so I am adding a bit more to it and 'playing' with it myself .
Vic Smeed plan Thornycroft took about 20yrs (on and off) to complete and has an Electronize 43HX 24v 15A controller, 2x 400 sized 6-12v brushed motors 4cell 3000MAh LiPo for main power with seperate 3 cell LiPo running a computer fan for cooling (fan is linear and sucks air through the boat from the front hatches and blows it out through the rear hatches) There are also seperate 3 and 4 cell AA NmH packs for nav and interior lighting.
Boat runs 28mm 3 blade props and runs at a realistic scale speed and attitude. Radio gear is 2.4 and I have modified one TX for twin throttles and at present am running both these boats simultaniously on the one TX.
Have bought twin car ESCs, batts, RXs and BECs for the PT and the (36") British Power Boat 64ft HSL I am building (modelled on the RNZAFs 64ft HSL- the only one sold in the southern hemisphere - in 1940) Went on board as a teenager before she was ruined by being turned into a pleasure launch so it was a help with the building. Still remember the wonderful alloy 'Power Boat' stair treads down to the ward room. Will get some pics up of the HSL as well.

More before and after and on the water ( video grab from video taken by minI cam on PT boat) There is another minI cam in the helm position on the launch looking through the screen.

I got this from another modeller late in 2010 sailed it at Westport in September. The plan is called HMS Midge but this type of boat were only known by numbers I.e. TB 20. it goes very well on 7.2 volts but needs a bit of ballast in the stern to stop it diving at speed

My Sun Tug MK25 version, originally adapted from a Lesro Sun Tug Kit, actually still being built [not quite yet complete] but seaworthy enough to get some testing time in the water. it has more than enough power to haul my dusseldorf along when the batteries are flat after some time sailing, so rather than pull the fireboat out, decided to let the tug do some work.
Powered by a hectoperm motor with 3:1 gearbox,twin 6v gel batteries,water pump to operate the fire monitors,engine sound, nav lights, interior lights [cabins] rotating radar scanner,

Ahoy
here is a few pictures underway and display of my 1978 issue Lindberg PT-109. I had this old boat for 32 years for power nothing to get excited about. not to much into speed but she goes fast enought not enough to raise the bow out of the water. I didn,t use the kit motor it was to much of a toy its design was primarley used for pool opperation. there for I replaced it with dumas 6 volt electric motor useing the kits reduction gearbox they give you. at the time of the build I had no forsight discard it, perhaps in the near future Iwill scuttle it and use 2 direct 6 volt motors the gear reduction slows down the speed pretty much if you use scale speed it is good for cruiseing at 6 knotts. the gear reduction has been coated with grifite grease as long as I had this old relic there are no wear on the gear teeth so she is good to go untill I decide to scuttle this old gear box. Here are a few attachments of this ols sailor

This is my second attempt at scratch building using a a grp hull. My first boat was an MTB/MGB built on a Perkasa hull as a semi-scale model. (see All things Rc - Power setups).
This time I have concentrated on keeping things lighter but it still weighs in at 2.5kg!
I have built without plans, relying on internet photos scaled etc using "Photo deluxe" and "Photo Express".
Virtually everything is built from plasticard apart from a 3mm liteply deck.
The dinghy is epoxy resin and microballoons, ths scramble nets are Lego!
Power is again courtesy of Graupner -2, Speed 600 8.4v using lh. and r.h 35mm props. Esc is one of those 50amp ones from the far east. These are far cheaper than the Viper Marine 40 used in my MGB, but slightly heavier and less sensitive at low speeds. Current drain (in the bath!) is up to 30A but this gives a superb on the water pace of an, estimated,8mph. Battery is a 4,600 mAhr NiMh.
(A true scale speed approaching 150mph plus).
I sail it on Ullswater in the Lake district and the Vosper Perkasa type hull shape is superb in the real waves that we get there, flying over the crests and taking aboard No water!
It really looks the part as my photos would show if I could learn how to load more than one! Can anybody help with this?

THIS IS N=MY ROBBE PT 15 BOAT ITS MY FIRST BOAT BUILD AND I THINK IVE DONE OK SO NOW I AM TRYING MY HAND AT A DUSSEL DORF FIRE BOAT NEXT "HA HA "SO ANY TIPS OR HELP WOULD BE MOST WELCOME

This Sea Comander was another disaster, rescued from fleabay a couple of years ago as a 50s/60s bare shell. Whilst the hull was basically sound, the model needed considerable surgery. I resisted the temptation to cover it in modern fittings and have kept it original looking. Power is an electric 800 motor on 12 volts with 2 channel 27Mhz R/C. Performance is reasonable, particularly as I have lightened the original internal structure considerably. A big 7AH battery lasts for ages but for speed I use a small 2.5AH one. Owner sails at Warminster Model Boat Club, Wiltshire.

I rescued my PT Boat from EBAY in August 2005. it was owned by a young boy in Birmingham whose Dad had built if for him. it is an original Aerokits kit Fast Patrol Boat. When I bought the boat it had a sound hull with a few damaged fittings, which I removed. Since then I have made new guns, extended the front cabin to carry the life raft to make it look like a late World War II Elco PT Boat and added other new fittings.

I have made 6 working exhausts in brass tubing, have fitted a new open prop shaft running an Octura race prop and a Merco 61 glow engine. it still needs torpedos, guard rails around the machine gun turrets and a few other fittings. The number 349 is from an original Pacific Theatre 80' Elco PT Boat whose name in Bee Bee, which I hope to add at a later date.

I have also painted it in an original Pacific Theatre camouflage from a PT Boat book which I bought for reference and to make it look like a standoff scale model. This boat was also photographed by the local Burton Upon Trent newspaper at the Fireboat day in September 2006. I ran this boat at the Burton Model Boat Club's Fireboat day in September 2006 briefly until I broke the exhaust manifold and had to retire it early.

These pictures are of a scale model of Captain Joshua Slocum's "Spray". it was sailed around the world, singlehanded between 1895-1898. Slocum re-built a Delaware oysterman hull in Fairhaven, MA and had been a gift to him.

After reading of his exploits in an original copy of his book, 'Sailing Alone Around The World' 1899 The Century Co., John copied the drawings that were in the book, established a scale for each and then converted those scales to just one - 1"=14.6" and proceeded to make a model of the famous boat. At that time [2003-2004] there was a commercial kit available but after much research John concluded that he had enough information from the book to build his own version. Actually the available kit contained some mis-information about the boat and that settled the matter.

The model was built plank-on-frame and then covered with epoxy/glass since it was intended for RC. He sailed her during the summer of 2004 and was quite pleased with her performance. An opportunity to sell the model came to him and he did so in January 2005.