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>> Home > Tags > lipo

Lightning 46 by Tica Chief Petty Officer   Posted: 1 day ago
[Score: 8/10] 28"/1100g Lightning 46 Single Propellor (2 Blade X Type 35mm) Direct Drive to a Power 600/19 (2 Blade X Type) Powered by LiPoly (7.4v) 2Amp/h Batteries Controlled Through Robbe Rokraft 120µ ESC - Comments: Old school Robbe kit that I found 2 years ago.Build as intended except for the use of LiPo. I have only tested it with 2S mA >Cell but as the weight is less than half of the intended cell NiCD it performs great. The plan is to get my GPS logger on it. And also to test with 3S mA LiPo.

46" Fireboat - what engine(s)? by Vapour Apprentice   Posted: 4 days ago
Hello folks. Brand new here, so go easy! I have searched but not quite found what I am after. Apologies if I've missed the obvious. Having just finished a 36" Fireboat with my son, I am now thinking about the larger 46" version. The little boat is running a Radient Reaktor motor / ESC combo which is 3000kV with a matched ESC and 2S1P LiPo battery. Performance is pretty good, although we're still ironing out some cooling issues and vibration (old model resurrected). I am going to do the big boat 'properly' so am looking for recommendations for power, ESC and batteries. I am looking for overscale performance and tend to run on choppy water with currents (i.e. rivers😁). Thanks in advance, everyone!

Sea Hornet by canabus Lieutenant   Posted: 1 month ago
Hi Jim I will be watching this built very close, as I have built one from original plans and also did the 25% as a future project. Because of the very limited engine and radio hatch, I design them larger, but, you are on the right path. I installed a 28mm brushless motor, 3S 2650mah Lipo battery with a 2 blade 32mm brass prop. I don't think the 25% bigger a one would require any more power as it a rocket. My hatches run down the deck planking lines, the original hatches are only for show. The engine starts from the front seat and finishes at the rear windscreen. I made up the cockpit floors etc. before I skinned the sides, a lot easier, also the floor is split over the keel with the seats one piece. Can-a-bus Canabus

what fittings for a plane prop by Dave M Fleet Admiral!   Posted: 1 month ago
Hi Sonar My airboat was a plastic hull and top from Mobile Marine. I added my own top details and use a 2228 brushless with a cut down 10" prop. Cheap 30amp Chinese ESC and 11.1v Lipo. This is the larger version there is a smaller version also. I am attaching some pics of mine and a fellow club members model Hope this helps. Drones are a whole new ball game but usually come as a complete ready to fly set. If you are thinking of pics of your boats on the water you will need to spend about £300 to get a good basic but reliable drone. Dave

SG&K 1920 Gentlemans Runabout Mk2 by canabus Lieutenant   Posted: 1 month ago
Hi All I have started my redesigned runabout by increasing the length to 860mm. The motor and ESC will move to under the removal dash for better weight balance. Increase the engine hatch to get the Lipo battery, receiver and servo into. This will be hidden by the deck planking and the original hatch size will get it back to scale look. Brushless motor 3639-1100kv,3S battery, 60A car ESC and 37mm 3 blade prop.

Jet Sprint Boat by rolfman2000 Lieutenant   Posted: 1 month ago
Wonders. Looks fab. And with that amount of power should move as well. Our lake prohibits petrol or nitro boats, so big brushless would be out preference with maybe a 2 x 6s Lipos in series giving 12s power. Best wishes Rod. Good luck cleaning the man cave. Cheers, Dave W 😊

Fairy Huntsman by rolfman2000 Lieutenant   Posted: 1 month ago
Dave M beat me to it. I have the same model. It's fitted with a speed 600BB motor and a 40mm prop. I use an Mtroniks 25amp speed controller (which is being changed to a 30amp Tio esc shortly so I can use my Lipos). It planes nicely on out lake, and seems quite good handling. Good luck with yours 😊

Fairy Huntsman by Dave M Fleet Admiral!   Posted: 1 month ago
As this is a refurbishment chances are it was fitted with an IC engine in which case you need to remove all the gunge and heavy mounting blocks from inside the hull as well as checking the propshaft and bearings. If you can get the weight reduced then I would expect a speed 600 motor with a 30 to 40 mm prop should suffice. A 20/25 watt ESC powered by a NiMh would also be suitable and keep the weight down. If you use racing props the current will be greater than if you use brass 3 blade props, and the bigger the prop the greater the current. As a general rule the prop should have a diameter of no greater than that of the motor. The voltage of the NiMh must not exceed the max voltage the ESC can handle. A higher voltage will reduce the current draw so a 9.6v may be better than a 7.2v and give a longer run time. If you already have batteries for other models I would use those but SLA's are heavy and may hinder planing. If you already use LiPos then make sure your ESC can stand the voltage and has a built in cut off to protect the battery.

Sea Hornet by RNinMunich Fleet Admiral!   Posted: 2 months ago
That's exactly how my HMS Hotspur destroyer started! 👍 Free running with two rattly Mabuchis and a flat 4.5V dry cell battery! Granny and Grandad took pity and bought me a 6V 'Lantern' battery! Progress 😊 The Sea Scout my Dad built (which I'm now renovating) was very modern .. Taycol Target and 6V wet accumulator! And yes, that kit cost 35 bob, substantial chunk of a week's wages! Oh happy days .. Or ... !? Both had to wait another 20 years until I could afford RC, an Irvine / Sanwa Conquest FM6, sitting on my desk now (wonder where the antenna went?), it still works! 35Mhz!! Well what did I know?? 🤔 Anyway, my excuse is I originally bought it for the little Wren biplane I had built for my daughter, a German kit called Zaunkönig in German - literally 'Fence King'. Still have the plane, thinking of converting it from glow-plug to brushless. Micro servos and LiPos already purchased 😉 DHL just promised me that tomorrow the rest of the bits for the Sea Scout refit will arrive, including Royal Blue paint. 😊 So much to do - so little time 🤔 Happy building and happier sailing. Cheers Doug 😎

Help boat problems by DragonMike Apprentice   Posted: 2 months ago
It's been in storage for 6 years as I just gave up on it. I'm trying to get it going got a planet 5 receiver all wired up correctly a 4500 mah 11.1v lipo battery . As soon as i connect the battery to the motor it starts turning. When the battery isn't connected the servo seems to work and turn on command. Is there a throttle servo anywhere? I'm totally stuck and really want to get the beast going. Yeah I'm a total newb and any help would be massively appreciates. Cheers

NAXOS by Inkoust Fleet Admiral!   Posted: 2 months ago
[Score: 9/10] 14"/500g NAXOS Single Propellor (3 Blade 20mm) Direct Drive to a MIG 280 (3 Blade) Powered by LiPoly (7.4v) 2Amp/h Batteries Controlled Through DSYS 12 A (5Amps) ESC - Comments: Model Greek fishing boats whole laminate construction, deck plinth. It also manages big waves on the lake, very stable. Assembled with 280 engine, 2200 mA LiPol battery, headlamps illuminated, reflector.

Brushless for 'Sea Scout'?? by canabus Lieutenant   Posted: 2 months ago
Hi RN From Hobbyking. Motor propdrive V2 2830- 1000kv 370watts 3.175mm shaft(9190000328-0)3S or 4S lipo battery. ESC 30A car(HK-30A)( XT60 connectors required), program card (HKPROG-CARD)can be used on the larger ones in the series. Lipo battery Turnigy 1000mah 3S 30C (T1000.3s.20) 89grams 75 x 33 x 19mm or a Turnigy 1500mah 3S 25C (T1500.3S.25) 113 grams 80 x 34 x 25 mm both have XT60 connectors. Prop about a 2 blade 30mm 1.4 pitch. Hope this helps.

Battery problems by Patto Chief Petty Officer   Posted: 2 months ago
thanks Dave i got a seaking 120a watercoold brushless ESC by Hobbywing which handles the power well. Same motor as before got a 38m 2 blade prop looking for a 3 blade. i was originally useing the 12v battery to run the motor but it was no good now use a lipo which i have installed under the deck in front of the motor.the large battery is running the watercooling pump and is also the prefect weight for ballast.NO problems with the salt water as i have got stainless steel, brass and copper fittings and a good flush threw the cooling system with fresh water. might be some time before i can put up a video because the council is draining the pool next week for the annual winter maintenance which is a bummer as there other suitable ponds handy. cheers Allan

Brushless in or out by canabus Lieutenant   Posted: 2 months ago
Hi Sonar I have used both in boats and with no watercooling. No problems with both types. The in runners are good for replacing brush motors as the 35mm brushless motor are the same bolt holes as the 540 brush motors. My first brushless was a Trackstar 17T 2400kv into an old rc car, 90watts to 550 watts, turn it into an insane rocket. The main brushless motors we use in the boating club are Hobbyking 3639 750 and 1100kv, 3648 1450kv and the outrunner D3548 1100kv with a 2 blade 40-50mm props. ESC's are the car 60 and 100 amp which handle 2S to 4S Lipo batteries.

Sovremennyj Clas by Inkoust Fleet Admiral!   Posted: 2 months ago
Russian rocket cruiser, TRUMPETER kit in 1: 200 scale. Micro-servo, 2-series 200 series, 2200 mA LiPol battery. Riding only on calm water.