model lifeboat power plant

[mike farrellParticipant @mikefarrell21522]

Hi All my first lifeboat is now read for the water and tested .

It is set up with a drive train of .2 T4 12volt motors and 2 Mtronick 20amp escs

It runs well but lacks any real speed I am of a mind to fit Brushless system but will take advise from more experienced modellers than I

The model is 37 ins long and weighs around 12 pounds complete with batterieschael

Your help and advise will be appreciated Mi

[mike farrellParticipant @mikefarrell21522]

what power plant to use.

[Dave MilbournParticipant @davemilbourn48782]

If you're using 12v then why not swap the T12 motors for Graupner Speed 700 BB Turbo (12v)? You won't need to change ESCs. The part number in Graupner's catalogue is 6317 and here's a link to a supplier with some in stock.**LINK** Note that it's this 12v-badged version you need – any other type will be too fast on 12v.
They work very well in the Model Slipway Tamar, which is a similar size. Just don't use a heavy lead-acid battery – a 3S LiPo or ten NiMH cells will be much lighter and increase performance even further. 40mm 4-blade props are the order of the day here. Save the T12 motors for a tug or similar slow workboat, where their slow speed/high torque will be more suitable.

Dave M

[mike farrellParticipant @mikefarrell21522]

Hi Dave,

Thanks so uch for the advise .Gliders is not too far from me so a trip after Xmas will solve my problem.

As you advise the motors will do for my next project, To all out there a merry Xmas and a healthy new ear to all .

[Mike Waterhouse 1Participant @mikewaterhouse1]

If you're still contemplating going down the brushless route you should consider the Turnigy D2822/17 1100 K/volt from Hobbyking priced at $9.28 each. Use the hobbyking SKV HK-30A speed controllers priced at about $ 14.99, as these have a reverse mode as well, on Lipo 7.2 volts would give a no load speed of about 7920 revs. You would have to have a battery charger to suit again Hobbyking do a Turnigy Accucel 6 which will do all the batteries you will ever want including gell cell lead acid priced at about $ 22.99 ( all prices in American dollars).

This is the set up I'm going to use in a MTB boat and has already been used my some other of our Club members very satisfactorily.

Anyway that's my two penneth of thought…..hope it helps.

Seasons greetings and kind regards.

Mike.

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