Perkasa , Motor Torpedo Boat - Listen comments from owner and builder Dave Cole.

Here are some pictures of my Shannon class lifeboat, she’s been a very slow build, but getting there now.

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 built this model during four long years. my Lulonga is nearly whole scratchbuilt model (about 75 cm long) except the steering wheel and position lamps.
The model has a plywood and balsa hull construction ,plywood decks,from hard polystyrene sheets made superstructure,laminated with veneer. Sidewheels with skew paddles, two DC 12V independent electric motors with gearboxes controlled by ESC. Electric LED lights, steam sound module, sirene and horn.Tx/Rx 6 channel HK 2,4GHz.
completion expected in spring 2014
More infos about building you find at > www.paddleducks.co.uk <

some videos are here at Model Boats too >
http://mdlbt.com/19852

wiring diagram you can see here in my albums
http://tomarack.rajce.idnes.cz/RC_model_Lulonga#lulongaelschema1.jpg

This is a video of her build...

Just finishing up a Chesapeake Bay "flattie" skiff. The bottom flat and is cross planked Here is the video fo the build

Weather was perfect tonight for a test, so I did the 15km trip out to the Gulf harbour pond (most weed free pond) to throw the boat in. After a thorough under water hull inspection from the marine department, she was off. Everything worked ok except the silicone drive tube which had become enlarged due to soaking in the grease coming out the front of the jet shaft. It was slipping badly and probably losing about 60% of its' thrust. Manoeuvrability is excellent but reverse leaves a bit to be be desired. Steering in reverse is perfect but the thrust is not going forwards enough from the bucket. Might have to build in some nozzles to direct it better.

Smoke air and water are working as well as can be expected, (smoke is a bit wafty, but with too much air introduced it will disappear as it gets thinned out too much to see) I was not expecting miracles as this was a bit of an experiment (modified cheap jet unit with unknown abilities) but at least it shows promise😁. If I can find a coupling which is concentric it will solve the drive problem.

Trouble is, the Chinese insist on making a 4mm shaft, 4.95 (or whatever) which is useless for balance in a 4mm ID bearing for example. Fine for cars, but no good for boats or planes due to balance requirements (it's a mission trying to balance plane props due to this thinking,- they do it with everything) shafts for electric motors are a nightmare at times as the play they build in, can ruin an otherwise good motor. I might have to buy a flexible rubber/nylon universal or a collet style( preferable as these take up any undersize on shafts) to fix it. They included a spiral alloy one with the jet unit which is as loose as a rooster in a sock, and only good for slower things like 3D printers etc. One of these days they will learn how to machine things to fit.😐

Policing at the Pavilion Gardens Lake enlist a new "Rookie" from the Buxton Model Boat Club.
Under the watchfull eye of owner and builder Graham Royle, Decoy Duck Donald, turns a few heads while he Ducks and Dives to maintain decorum - !.
REMEMBER - change "quality settings to HD 1080p " when viewing on youtube.
More photos on "Boats Clubs & Lakes" / "Buxton Model Boat Club".

My friend is traveling in B.C., Canada, and took a photo of this Russel Brothers tug, though he did not do it especially for me, just posted it on his FB page. I asked if he had any other views but By the time he got my question he was farther on his journey. Still, this would make a nice project build.

http://russelbrothers.com/xlisterville.html

hi wonder if anyone can help me i am bulding smit nederland by billings and having troubles following manual has anybody got any build pics there is no measurements and im not sure on the deck with super structure is the deck curved, on 44 as i cant see if it is can anybody please help me out, many thanks colin👍

Building the Chris Craft Sterling kit. This will be static. I plan on furnishing the interior as well

Brought another model a HMS Victory this is for display only on a shelf above my television, She was built by a good friend of mine who told me it took him quite a long time to build it, I can believe him as it is a beautiful model.