I decided to renovate a very old model Clyde harbour tug which belonged to my Dad. This has been in the family for over 80 years (Dad would have been 100 this year) and was in need of some TLC. It is now fully radio controlled and runs from 2 x 18650-2000mAh batteries. Length: 41cm, Beam:11cm, Draft: 6cm, weight: 1.5Kg.

I know this is not one of my boats, but belongs to one of our club members. It is a 1/48 scale model of a "whaleback" freighter. The real George Washburn was built in 1885 had a length of 320 feet. What is unique about this is it had a almost tubular cross-section hull. Many times I heard visitors call it a submarine.

Jim's model includes horn sound, lights, homemade smoke generator and a ballast fill/empty system to reduce transportation weight. Video Link (this is not on YouTube, you have to copy this link to your browser to see the video): http://ssmbc-fl.org/Videos/Video-03-30-2014-01.mp4 (😮The link icon below WILL NOT WORK!😮)

I though some of you might enjoy this wonderful scratch built model!

Lew

Hi friends, by the weight, it might have been a kite or a foam plane, but no it's Sterling scale from maybe 1980 or so that is something to behold.
I am certain the box also still had some rarefied 1980 air in the box I think...I recognized it. Such a pristine kit I am intimidated a bit, I hope you will appreciate it. Peace, my friends!

Perhaps not a boat, but no pond is complete without one of these gems.
This lighthouse is fully remote controlled.
The lamp rotates at 12 rpm allowing a flash of light every 5 seconds.
A 5kg weight is mounted under the island and winched down to the bottom of the dam to anchor the island. The winch is powered by a 6V Ryobi Cordless Screw Driver's gearbox and motor.
The Fog Horn is operated by a 9V motor with a counterbalance causing a vibration inside the tower, amplifying the sound effect of a steam horn.
It's built at 1:35 scale and stands 80cm tall.

On Halloween morning Sunday Oct. 31 2021 ran the Sequin with several other club members at Spencer's pool may be last run this year with weather getting cooler . The lake freighter was her first run & just needed a little ballast weight at the stern prop wasn't deep enough Boat belongs to a fellow club member .

Ever felt sorry for those Philipino static models you see all over the place? Well I did and bought this launch from a charity shop in Didcot for a fiver. I reckoned that the fittings were worth that even if the change to working model failed. Fortunately, the model floated about right as it was and I managed to save a lot of weight to allow for the added weight of motor/batteries/ rc gear etc.

The project has not been without its problems but it should be finished and ready to maiden within a couple of weeks. Not sure that I would do this again but it has been interesting......... I intend to mount it on a boat trailer rather than a stand. Report more when she is launched.

Still working on a bit more keel weight and trying other rudder profile surface areas to improve turning ! - I think the last two videos may illustrate the need for further improvement in these areas.

Ex Display Model - Gaff Rigged Bristol Pilot Cutter :-
After sorting out initial problems of a "leaky" hull with extra sealing inside and out. Attention was then drawn to adding an extended keel by subsequently casting a lead weight for the base of the keel fin, then checking required depth for balance and trim .

A change from Maid Rosalind Thames cruiser blog posts! This winter I added a removable keel and rudder extension to the Bristol Channel Pilot Cutter I built in 2017. I wanted to produce a hull that was truly accurate above and below the waterline, and with the correct lead in the keel and in scale winds she sailed ok, but to get a model to sail realistically, you generally have to add a lot of weight deep down. The last picture shows that for regular display, the ugly keel and rudder extensions come off and the stand's extended legs unscrew. She stands 6' 2" with her new keel, and 4' 6" long. The trials were successful. She sailed beautifully, even tacking those overlapping headsails flawlessly, which is generally quite hard to do with RC! I have up to now only posted blogs as they happen, but I have full documentation of this build and can start a blog for it after Rosalind is finished, if it's OK to publish something from the past. I added a teaser build picture!

https://www.facebook.com/modelBoatsTrainsPlanes/videos/800923610583750/

🔗
Thank you Doug and Stephen for your help in getting the video to work. The stills give little idea of any movement but the video shows she was really trucking! Ed

Part 1. ideal conditions; nearly 30°C, cool Bier at hand😜
Sea Scout built by Dad in the early sixties with a Taycol Target and 6V lead acid wet cells (very wet😡). Renovated and dragged into the 21st century over the last several months 😉
See Build Blog 'Sea Scout 'Jessica'' for details!
Motor: Propdrive 2830, 1000kV, 30mm 3 blade Raboesch prop. Quicrun 16BL30 (30A) ESC with BEC.
Tested with 3 battery types, all started with 99% measured capacity-
1. NiMh 4.2Ah 7.2V, nom. 408gm.
Result: Speed sedate (OK 😉scale river cruising!) No planing.
Max current: 3.6A
End status V / capacity left: At end of short run ca 3 mins. 7.78V 99%.
2. 2S LiPo 4.0Ah 7.4V nom. 257gm.
Result: Speed still sedate but due to lower batt weight at least the forefoot came out of the wet stuff! Max current: 4.1A
End status V / capacity left: At end of short run ca 3 mins. 8.25V 93%.
3. 3S LiPo 4.0Ah 11.1V nom. 315gm.
Result: Now we're getting somewhere!!😁
Good speed, manoeuvrability and planing 😊 Max current: 7.5A
End status: 11.95V 74% after several long runs, ca 20 mins total.
Estimated (extrapolated) endurance on a 4Ah LiPo around one hour - mostly 'full bore' - 'Pedal to the metal man' 😊

See also:

The competition!

Final run. (Beer was getting warm😁)

Cap'ns log entry:
Boat dead-weight w/o battery: 1.8kg.
Spray rails to be added!😲
Slight list to port to be trimmed.
Rudder servo to be reversed!!😲
Keel protection to be added: some scratches and flaking from stony sloping shore 🤔
Summary: much as expected👍 Forget anything less than 3S.
Anyone want to buy a batch (4) of new 2S 4Ah 45C Lipos? 'One careful owner'!
Happy boating people, Cheers Doug 😎
PS Many thanks to Camera girl Gisela 👍
Recorded in 1080p HD.

I wanted to try the driveshaft brake I'd recently fitted and thought I might as well do it on an actual ramp. This ramp has around a 30deg slope so it was a good spot for a test. Tried it with just the trailer first, (don't want my boat model disappearing down the ramp at high speed) and it worked well. I've done another vid where I but a 3kg water bottle on the trailer to simulate the weight of the boat, and that also worked well (although it's a bit scary when 13lbs starts rolling down the ramp backwards.

Lost the trailer a few times going over a big join in the ramp ( forgot the tow ball lock nut) so had a few goes to get it right. I was surprised how well a piece of string round the driveshaft could hold that weight so easily. Only negative is that it's not as good in forward, (would need another wound the opposite hand on the shaft) but that's not as important as reverse control. Still waiting for the weather and tides so I can try another launch. This ramp's not bad, but a little rough !

I decided to risk a salt water trial, as there is no place I can think of with fresh water and a smooth beach or ramp which doesn't involve a 100 mile round trip (most beaches where I am are ocean beaches and others are soft sand/shell. The only lake I can think of is 112km away and I'm not THAT keen. Launching went ok but retrieval was another matter, not helped by an 8mph side wind (looks calm but is windy) Had a number of goes and discovered a few things which need changing, (extra front guide posts and rollers either end of the pads) The rubber resting pads stick like glue so I'll have to make some pop up rollers at the ends.

The pads hold the boat slightly above the centre rollers to avoid damage and stop it sliding off while shifting it. New front guide posts are needed as the boat only draws about 30mm and goes right over the trailer with it underwater 😮(no prop or rudder sticking out,) so it might help locate it when coming in. Jeep had truckloads of power (just fitted a new even lower geared -geared motor -1000rpm/min @ 12v), but unfortunately being only 2x2 (not 4x4) and being half the weight of the boat/trailer combo it couldn't get a grip in the mud, so needed a bit of assistance, (as did the boat getting onto the trailer). Cut out most of the vid with the boat missing the trailer about 10 times, but scored a direct hit once😊. Heaps of fun trying and heaps of washing and CRC when I got home! Going to need some new bearings at some stage, - the ones in it are rubbish and have only lasted for about a few hours running, noisy as anything now, even with gallons of oil. Stainless NMB ones next if I don't change the jet to something else, (another thought on propulsion happening)💡