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>> Home > Tags > 540 motor

540 motor
brushed motor
brushless motor
johnson motor
motor
motor cooler
motor mount
reversing motors
torpedo 850 motor
torpedo motor
twin motor
540 motor
Anteo 2 Tug by Colin H. Fleet Admiral!   Posted: 12 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

Vic Smeed air/Sea Rescue launch by Will-I-Am Sub-Lieutenant   Posted: 2 months ago
Help required, I have just started to look again at this boat which I partly built the hull and upper works for many years ago from a model boats extra publication. Has anyone built this model as I have a number of questions re finishing the balsa hull, modern control and running gear for this model. It currently has a Graupner Jumbo 540 motor installed but nothing done to the balsa hull or upper works or control

Graupner Jumbo 540 motors by CB90 Fleet Admiral!   Posted: 2 months ago
Sorry but when you said 6v I assumed it was a SLA so your NiMh, must be a 5 cell as they come in multiples of 1.2v. So I agree the simplest solution is a Rx battery pack and disconnect the BEC supply. (May need to remove +ve wire from ESC(s) plug?)

Graupner Jumbo 540 motors by RNinMunich Fleet Admiral!   Posted: 2 months ago
Hi Will, Sounds good to me👍 I like the Action Electroncs stuff as well, have their dual ESC with rudder mixer which I want to try in my long thin destroyer to reduce the turning radius. Was misled about the SLA by a previous post🤔 Makes sense re the BEC which I believe is 5V 1.2A. I prefer a separate RX batt anyway😉 BUT: if you run a 6V NiMh down to 5.6V you are close to the Deep Discharge zone which will seriously damage the battery and drastically shorten it's life 😲 Threshold voltage is 1.0V per cell, so take erratic control as a warning that the battery is flat and come home soon! Look forward to your Sea Trials report. Cheers, Doug

Graupner Jumbo 540 motors by Will-I-Am Sub-Lieutenant   Posted: 2 months ago
Doug, The 6volt battery is currently an NiMh battery not an SLA. The problem was that according to Mtroniks the minimum voltage to the ESC to adequately run the BEC connection is 6volts. That is why I was getting erratic control when the battery voltage was 5.6 volts. The action speed controller will work 2-12 volts and I am going to use a separate receiver battery as suggested by Dave Milbourn just to make sure. Regards Will

Graupner Jumbo 540 motors by RNinMunich Fleet Admiral!   Posted: 2 months ago
hi Will, I agree with replacing the SLA. If you don't want to go LiPo cos of chargers etc etc how about a 5 cell 6V NiMh? much lighter than the SLA For the ESC switch to the Mtroniks Viper Marine Micro 10. That handles motors up to 550 can size, 10A motor limit, and runs off 4.8 to 12V 👍👍 I use these very happily on ships running 2 or 4 540s. A destroyer and a cruiser. Both about 54". http://www.mtroniks.net/prod/Boat-Speed-Controls/Viper-micro... You can get 'em about 5 quid cheaper here https://www.cornwallmodelboats.co.uk/acatalog/Mtroniks-marin... There are also 15 and 20A versions if you want to run both motors off one ESC 😉 Cheers, Doug 😎

Graupner Jumbo 540 motors by CB90 Fleet Admiral!   Posted: 2 months ago
I think it would be worth the risk of running the DC Motors at 7.2v (NiMh) or second choise 7.4v (Lipo) and get rid of the 6v lead acid battery. The chance of damaging the motor is limited, the battery packs will be lighter than an equivalent lead acid, but will need to by a charger as well. Always put a fuse in line rated 5 amps below that of the ESC. Or buy two higher voltage motor? only £6.99 each plus P&P link copy and paste into browser address:- https://howesmodels.co.uk/product/graupner-speed-600-8-4v-mo...

Graupner Jumbo 540 motors by Will-I-Am Sub-Lieutenant   Posted: 2 months ago
Help required please, I have two Graupner Jumbo 540 6volt motors in an eboat circa 1978, I had fitted an Mtroniks speed controller replacing the Bob's board only to find that when the voltage dropped below 6 volts down to 5.6 volts I was experiencing intermittent operation of the esc. I have been informed by Mtroniks that the minimum voltage for operation of the esc is 6volts. Graupner have also confirmed that the maximum voltage for the Jumbo 540 motors is 6 volts. Do I have any alternatives other than refitting the Bob's board?

Range Safety Launch? by canabus Fleet Admiral!   Posted: 2 months ago
Hi The 382 was a Fire Float Mk1(40 foot) (No. 90) converted in Feb 1950 to a Seaplane Tender. Max speed 21 knots. The MFA 800's are 5167 rpm( unloaded) @ 12 volts/ 5.3 Amps. Replacing these with 3639-750Kv brushless on 2S Lipo batteries(7.2 volts) would give you 5400 rpm( unloaded). 2S 4000mah 25C Lipo's(one for each motor) weigh 221 grams each. Canabus

LiPo batteries by RNinMunich Fleet Admiral!   Posted: 3 months ago
A chaque un a son goût John 😉 I'm not tooo surprised at your NiMh results. But I also think that you are correct that they won't last the proverbial 5 minutes on load. I had a similar experience last year when I retired and took stock of everything lying around in boxes and shelves in the so called workshop😲 Some also measured above the 'dead' voltage but collapsed within seconds of applying a load; a 540 motor running offload. They were consigned to the Great Recycling Centre in the sky 🤔 The NiCads had preceded them by a decade or so! Since then I've restocked with LiPos where I have brushless and LiPo safe ESCs and NiMh for the 'brushed ships with older pre Lixx EScs. For heavier jobs like Graf Spee (3 x 600), HMS Belfast (4! x 385), U25 (2 x 385) I've restocked with 6V 4Ah SLAs. Have started compiling an XL spreadsheet to keep track of them; when last used / charged etc. Oooops! Just discovered that Grauer Burgunder is an excellent cleaner for my inductive mouse pad 😲 Prost allseits! Doug 😎

Which motor by Colin H. Fleet Admiral!   Posted: 3 months ago
Hi Neil I have a 49inch tug which uses a 540 motor with 2.5 to 1 reduction box. 3inch 4 blade prop, On 12 volts pushes along nicely and with a 7amp hour battery gives about 2 hours sailing, total sailing weight is 21 kilos. Cheers Colin.

What Li-po? by Yngvegr Petty Officer   Posted: 5 months ago
I have been away from this hobby for a long time, but got inspired to get this garage-sale find running. It is a Graupner Commodore, 1970's motor yacht, 70 cm long. It came with all radio, motors, batteries and all, everything works, except the batteries are really old. So I am thinking about replacing the batteries with Li-pos, but what size should I have? The motors in the boat are 2 Mabuchi 540s. Are there problems running brushed motors with Li-pos? Thankful for all advice! :)

For Sale - Pilot ll from plans by Vic Smeed by cormorant Fleet Admiral!   Posted: 8 months ago
For Sale. Plank on frame wooden hull scratch built from original plans by Vic Smeed. 86cm L by 28cm B. She is very well made, though I can't claim for construction as I bought her part built. I re-painted, added the drive train and electrics as well as detailing the the deck house and upper deck. Twin brushed fanned 540 electric motors with Mtronics Viper Marine 20amp ESCs. 2.4ghz Tx with four channel receiver. Navigation lights and searchlight. (Need final wiring) I think she looks good on the water. https://www.youtube.com/watch?v=D6ELvkWcM-4&t=20s Collection only please. £210 ONO.

(2) COMPLETE MERCRUISER HP500 540 BULLDOG MOTORS by Dave M Fleet Admiral!   Posted: 9 months ago
This is for a full size boat engine. Aquawm is no longer a registered member. Please do not post any further replies to this post.