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>> Home > Tags > mtronics

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Added extras by Flack Admiral   Posted: 9 days ago
I have an original Aerokits Solent powered by two Torpedo 800 brushed motors controlled by two Mtronics 25 amp brushed speed controllers. I normally use two 8.4 volt 5000 mah NiMh batteries, although I have also used two 11.i volt Lipo's. The shafts are fitted with 50mm three bladed brass propellers. The boat performs nicely on the water. My stanchions are home made from 3mm brass rod with holes drilled to take 2mm chain. The stanchions are 70mm in lenght above the deck with approx 10mm below the deck, the base of the stanchion has a suitable sized brass washer fitted where it passes into the hull, the top of the stanchion is filed to a ronded profile. Shaun

Deans Seaplane tender by Dave M Fleet Admiral!   Posted: 22 days ago
Hi Just had a quick Google as I was not sure of the size. There was the very same item on our For Sale section 5 years ago: "Deans Marine 1/24th Scale British Power Boat Co. Seaplane Tender Includes JP Power 400 Motor, Deans (MTronics) ESC, 5Cell NiMh Battery." That being the case any small brushless 28XX size with a Kv of around 1000 and 30 amp esc and 30 -35 mm 3 blade brass prop should suffice. I have similar in my 34" Fireboat and use an 11.1v Lipo. If you are new to LiPo you do need a dedicated LiPo charger and be aware that unlike other battery technology they pack a very heavy punch. You must follow the charging regime to the letter and make sure you do not overdischarge when running the model. There are some rather frightening U-tube videos of what happens if you ignore the rules! That said I have been using LiPos for several years now without any major problem, but I am always aware of the risks and make sure I don't take any unnecessary risks Good luck Dave

Model slipway tsekoa 2 by ferryman Petty Officer   Posted: 2 months ago
working bow thruster twin T4 motors Mtronics speed controllers Requires batteries and radio gear Space required at home. £300 (Plymouth area) Collection only preferred. SOLD

SG&K 1920 Gentlemans Runabout Mk2 by lhpen Lieutenant   Posted: 3 months ago
Here's mine I built as per plan about 4 years ago. Name: "Merlin" Specs NiMH (7.2v) 4 Amp/h MTronics Viper Marine 15A Constant Motor: High speed Low drain 545 Type: Brushed Drive: Direct Drive Props: Single Propellor Type: 2 Blade X Type Size: 35mm Built from a Traplet plan In 2013. All wood construction, 545 direct drive motor water cooled with 2 blade prop. 2x 3.7amp 7.2 volt NiMhd batteries and a Mtronics Viper Marine 15amp speed controller.

Motor Mounts by cormorant Admiral   Posted: 5 months ago
Hi Dave I am using Mtronics Viper Marine 20s- (I did order 15s but Howes sent these by mistake). I am using 3cell 30-40c 5000mah in the Perkasa - batteries are overkill I suspect? A 7.4 2 cell lipo seems a good bet then? Steve

Precedent Perkasa by Peter501 Sub-Lieutenant   Posted: 12 months ago
Hi Steve Yes I did look at the Masterblaster but it appears to be an on/off devise the Mtronics sound is portional to the motor speed I.E. From a tick over it increases as you throttle up or down to relate to the motor speed, it picks the motor speed up from a sensor that is joined into any two of the three motor wires and must say the installation is very simple with the pre made and plugged wiring harness. Hope this helps Peter

Precedent Perkasa by cormorant Admiral   Posted: 12 months ago
Thanks for that. Mine is already fitted with twin shafts and a friend has suggested that I use two 900kv outrunners with 60amp esc's. I notice that you are using an Mtronics sound system, I assume for the motor sounds. What sound do you use as I understand that these boats were fitted with gas turbine engines?

receiver voltage output by octman Commander   Posted: 1 year ago
I have two ESC's (mtronics Viper Marine 15)and a P40 mixer from Action Electronics. Because of this the motors have their own batteries, 7.2volts, and the receiver has it's own 6volt supply. Neither of the ESCs provides power to the receiver, although they are obviously connected to it, the central wire is removed from the connector and taped back, out of the way, so could I use one to supply the power for the sound unit? The mtronics spec for this BEC unit is 1.2A but the voltage is not mentioned. Chris

Veron Huntsman 28 by Dave M Fleet Admiral!   Posted: 2 years ago
HI Biggles I believe Haverlock's suggestion should prove suitable and Mtronics are very good at designing escs for model boats. Their Esc is also suitable for LiPo use as it will cut off piowerr if the cell voltage drops too low. The motor is a 1000kv which is the shaft speed you will likely get for each volt of your battery. You will not need big props otherwise you will overload the motor and three bladed brass possibly 35mm would be my starting point. The power available however with two motors will be far greater than required for a 28" boat so you will need to reduce the throttle control on your Tx. My 34" crash tender has one 28 size brushless and with 11.1v Lipo (2200mA) is quite uncontrollable without this. I use a Futaba 6Ex Tx which allows me to adjust the throttle stick output to about 45% in my case and I also have a differential set up on the rudder controlled by a switch as full rudder at high speed is dangerous. There are other sets available that offer the same functionality but my Planet 5 channel was unsuitable. LiPos are high tech and become very unstable if overcharged or discharged below a set voltage (about 3.3v). They are fragile compared to NiMh and should never be dropped and need discarding if they sustain damage. The internal chemical processes are stable at the nominal cell voltage 3.7v but become increasingly less stable above and below this voltage. Unlike other technologies the chemicals can not be restored once a parameter has been exceeded and and in the worst case scenario a chain reaction takes place. You will also need a LiPo charger. Do follow the instruction to the letter and never leave the battery on charge unattended. I have a charge bag and use the metal bench in my garage when charging LiPos. Good luck and please ask if you need more help Dave

BEC Circuits. by Flack Admiral   Posted: 2 years ago
Any advice re the wiring arrangements for my Aerokits Solent would be much appreciated, specifically in the BEC area. The boat is fitted with twin MFA Torpedo 800s each controlled by its own MTronics Viper 25 speed controller and powered by individual 8.4v 5000mAh NiMH batteries Each speed controller has its own on/off switch, however I have noticed I only need to switch one on to get the set up to work. I want to make these switches more accessible so I don't have to remove the superstructure to turn the system on and off. Can I do away with one of the switches? this would make the relocation so much easier. Cheers Shaun

Curlew by modbot Chief Petty Officer   Posted: 2 years ago
Thanks for your comments, I have built the Terrier, Mermaid and one other in addition to the Curlew, I didnt carry on with the other one whose name escapes me because I felt it was too narrow in the beam. Personally I think the Curlew and Mermaid are the best of the group. I dont think Mermaid would take rough water even though I sailed it on Loch Ken when I was on holiday up in Scotland, using small motor, Mtronics speed controller od 10 amps it copes with the weight rather well. I did make an en;arged version but I wasnt too thrilled with how it looked when enlarged, so no further work was done on it. I've also made the tug boat Beaver and even enlarged that to 150 %...its enormous..:-) The original is a nice little thing...I've made use of a lot of cardboard and balsa skins on these models. Its my personal effort with re cycling of materials, as they say what is one mans scrap is another's raw material.

dusseldorf fireboat by Ronboy Seaman   Posted: 2 years ago
Two Turnigy 2830-1000 Brushless motors. Each with a Mtronics G2 HYDRA 30A ESC.http://model-boats.com/sys_files/graphics/smileys/022.png

Motor Wiring by jarvo Fleet Admiral!   Posted: 3 years ago
Diverdan There was a link on here some time back, I seem to remember there was a faulty batch or something like, contact Mtronics direct see what they say. Mark

Coal barge by AlanP Fleet Admiral!   Posted: 3 years ago
For sale Is my coal barge, ready to run, all you need Is water. The barge Is 40 Inches long by 12 Inches wide and weighs In at 12.5 Kg. fully ballasted. It can be sailed on Its own, towed by a tug or tow a barge Itself. Driven by two 555 motors with a 15amp Mtronics speed controller, two 6v 7 amp hr batteries coupled to give 12v, (will run for hours) (the big battery Is ballast) twin 3 blade 50mm props, twin rudders, all controlled with a 27mgc two channel radio complete with crystals, batteries and even a flag On the barge Is a hand carved dingy (not by me) a bicycle, a tool box with opening lid and tools and rope Inside and a fellow stood standing, the hold Is full of coal, none of your painted stones on this barge. 😁 There are bollards all round, a tow hook on the stern and tow ropes. The roof of the wheelhouse will come off so that more detailing can be added If you wish. The barge sails well In all weathers with more than adequate speed and a very good turning circle, having a flat bow with rubber fender It also makes a good recovery vessel Delivered to Haydock show on the Saturday morning, unless you want a trip up to Cumbria Price £120 cash at the show, or If you don't want the TX, Rx It's £100

"E'Lance" by lhpen Lieutenant   Posted: 4 years ago
[Score: 6/10] 31"/1000g "E'Lance" Capable of 4mph and a runtime of 95mins Single Propellor (3 Blade 35mm) Direct Drive to a MFA RE-385 5-Pole DC Motor (3 Blade) Powered by NiMH (4.8v) 2Amp/h Batteries Controlled Through MTronics Viper Marine 10 (10Amps) ESC - Comments: Built from a Traplet plan 2012, all wood construction with plank- on-frame hull. 385 direct drive motor with 3 blade prop, Mtronics Marine Viper 10amp speed controller and 8x AA 1600m/a batteries.