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>> Home > Tags > tug

tug
tug
Voltage increasing via regulator by EricMB Commander   Posted: 22 hours ago
Thanks for the in-depth answer Doug, much appreciated! The component was incorrectly labelled - my fault.. it’s a Voltage Booster! Pic attached... to clarify, it’s really the bow thruster (a very small one at that!) I’d like running a bit faster, you’re right about tugs not being sprinters! Regards, Eric

Voltage increasing via regulator by RNinMunich Fleet Admiral!   Posted: 23 hours ago
A somewhat confused question if I may say so Eric!😲 You can't 'regulate up' only down. The regulator's job is to produce a constant lower voltage from a range of higher voltages. I often use one to produce 5V for the RX and servos from a 12V SLA drive battery. A little 3 legged device (type LM7805) which looks just like the power FETs in a high current ESC. My version of a UBEC! 😉 What is this 'regulator' you have? Type number? Manufacturer? Photo? To get 12V from 7.2V you would need to use a Voltage converter (also known as an inverter). This works by converting the DC input from the battery to an AC voltage which can then be increased using a transformer. More elegant (and expensive!) versions use a transistor oscillator and amplifier. This uses hi-power transistors instead of the transformer. The AC output of the transformer (or amplifier) is then rectified back to DC. All this is very inefficient which is why it is normally only used for very light currents, where the losses are not so significant, and when there is no other alternative, not often the case! You can't beat the physics and you will never get the same power out that you put in. This leads to a basic design question:- What is the total current consumption of the load? I.e. the motors. A simple example:- Let's say that at 7.2V the motors draw 10Amps total, i.e. 72W (or VAmps). Assuming a utopian 100% efficiency at 12V this would equate to 6A. Due to the three stages of conversion; DC to AC, transformation / amplification of AC to 12V, AC back to DC, you'll probably be lucky to get an efficiency of around 60% to 70%. Thus if you stick 720W in you'll get around 430 to 504W out. Not much of a gain is it!🤔 Your battery would be exhausted in about 2/3 the time it is now 😡 If your motors draw more than 10A the problem just gets worse. So what is it you really want to do? If you just want to up the volts to your motors stick a 12V SLA or an 11.1V LiPo (3S) in and hope that you don't cook your motors! Frankly I don't really know why you're bothering, tugs aren't sprinters! If you want more pulling power with the existing setup try experimenting with prop sizes and pitch. Will probably achieve much more than fiddlin' about with voltage converters. BTW: All this assumes that the RX has it's own separate 5V battery supply or from a BEC in the ESC. Some clarification needed from your side. Cheers, Doug 😎

Voltage increasing via regulator by EricMB Commander   Posted: 1 day ago
Evening all, I have a voltage regulator I’d like to fit to my Southport tug (currently running on 7.2v Ni-MHs) in order to get it up to 12v. I’m after more speed/power and would particularly like the bow thruster running a bit faster than it does on 7.2v. So, the questions are, where to fit it in the wiring loom, and what will the effect be on the battery life? Advice please! Thank you in advance...

Springer tug by Will-I-Am Sub-Lieutenant   Posted: 1 day ago
Springer tug

PS Waverley by marky Fleet Admiral!   Posted: 2 days ago
Hi Martin, Doug was right I built, am still building a paddle tug Aid , I have some drawings of the Strongbow if you are interested it may take a day or two to rake them out. Cheers Marky

The Building Board by Wingcoax Sub-Lieutenant   Posted: 2 days ago
I still have a set from thirty years ago, now here in Portugal. With a new board i must say.

Julieth 4 French fishing boat by canabus Fleet Admiral!   Posted: 4 days ago
HI NPJ I gave a few bits of blind to my boating mate and he is using it for doors and access hatch covers on his TID tug. Canabus

LED Tug Mast Navigation Lights by RNinMunich Fleet Admiral!   Posted: 10 days ago
Hi Pete, welcome back😊 Glad your eyeballs have cleared up 👍 Just ordered new goggles yesterday, should be here end of the month, then I can fiddle with 1mm LEDs again - maybe😉 No, I didn't put a plug and socket at the base of the mast. I hard wired it into connections in the wheelhouse roof. Then took all the wires down through the funnels until they poked out the bottom of the main cabin. That's it for now. The mast is not glued in, it's a tight push fit so can still be folded down a bit. Later I'll make the little distribution board and put the plug and socket there so I can still remove the whole superstructure for maintenance. No again, I haven't done any more on the Southampton yet. Been busy fiddling with my fish cutter Gina 2, hull preparation and preliminary coat of white paint, and cleaning up Colin's vintage Taycol field coil motor. See Electrical Blogs 'Taycol Supermarine'. Cheers, Doug 😎

LED Tug Mast Navigation Lights by pittsfieldpete Lieutenant   Posted: 10 days ago
Thanks for the information. Following Doug’s lead I came up with an idea for a scale fluorescent light fixture to install on the pilot house ceiling. I have odds & ends in my spare parts boxes that I can use to make the fixture, complete with a reflector & transparent pebble-surface scale diffuser. Even though the fixture won’t be visible I still want to achieve nice, even light in the pilot house with minimal shadows. The fixture design is still on the mental drawing board at this point but I’m reasonably sure it’ll work in the tug’s pilot house. If it doesn’t, however, I’ll definitely look into your suggestion. Thanks for reading my post & for your helpful advice, too. Pete

LED Tug Mast Navigation Lights by Haverlock Fleet Admiral!   Posted: 10 days ago
if your still thinking about the cabin light you may like to think about using a surface mounted LED https://www.ebay.co.uk/itm/Surface-Mounted-LEDs-10-Pack-Choo... Just to give you an idea

LED Tug Mast Navigation Lights by pittsfieldpete Lieutenant   Posted: 10 days ago
Hello, Doug! I’m happy to report that my eyes are finally healed & I’m ready to get cracking on my tug’s LED lighting improvement project. Needless to say it’s so fantastic to be able to see again. The infection was so bad that I had to move around the house for weeks with at least one hand on the wall or I was in danger of falling or walking into the china cabinet. I lost what’s called “stereo vision” & had no depth perception. It was a nightmare to say the least, especially considering that the source of the infection remains unknown. But I just had a checkup at the ophthalmologist‘s office & I was given the happy news that all traces of the infection are completely gone. Hallelujah!🙏🏼👁👁 BTW, did you complete your tug’s mast LED lighting project? I recall that you had finished up the mast itself & had its LEDs working. Were you able to reinstall the mast in the pilot house roof & get everything back together without any problems? At one point you had mentioned possibly making a plug & socket arrangement for the mast so that it could be removed for safer transport to the lake. Were you able to follow through with that plan or was it just is easy to simply re-install the mast? finished for your dog? If so, how did it come out? I hope all is well with you & that your many projects are all turning out successfully.

Kingsmere Model Boat Club by BOATSHED Fleet Admiral!   Posted: 12 days ago
It would be nice to see a list of both ponds and lakes across the country where all IC model boats are allowed to be run. I live just outside of Dartford and have about a 35 t0 40 mile run either side of where I live to be able to use my IC boats. I'm now retired and cannot afford to change all my boats to brushless motors. Sadly I'm not into slow running tugs and the like. I'm into MTB's and RAF Crash Tenders mainly or fast running speed boats.

Anteo 2 Tug by Colin H. Fleet Admiral!   Posted: 13 days ago
Hi Dick, I have a few tugs and the largest at 49" uses a geared 540 running from a 12v 7ah sla battery giving a good 90mins running time. This model weighs in at 15 kilos ready to sail. I also have a caldercraft model tug Joffre. Which is about 30" long and runs using a 6v monoperm motor and gearbox. 6v 4.5ah sla battery giving about 1 hour run time. Weight is 5kilos ready to sail. Hope this helps. Cheers Colin.

Anteo 2 Tug by Westquay Fleet Admiral!   Posted: 13 days ago
Dick, as far as I know model boat/car style ESCs have a reverse function. I would think a geared 540 motor would be quite sufficient. People tend to overpower most model boats, especially those not required to take off like ducks on acid! Like tugs. Cheers, Martin

Anteo 2 Tug by Dick Seaman   Posted: 14 days ago
Could someone advise me on a suitable brushed motor for the Anteo tug 800 mm length. Also how do you reverse motor,special esc or reversing switch ? Thanks Dick