I can work out scale speed as well as anyone.

I am glad that your Model Slipway Tamar worked well for you with a pair of 600Eco motors, but many other owners changed their motors not long after the model was brought into use.

You don't need high Kv brushless motors, or 4s LiPos to get scale performance with this model.

The addition of a bow-thruster is well worth the effort and cost.

25 knots is not very fast and would definitely not need brushless to get a scale speed or a good running time.
Of course if you think hammering around at closer to a scale 50 knots makes it look more realistic, then you might need to go that route.

Martin

Like many people, I originally built a Model Slipway 1:16 Tamar with the recommended brushed motors.

Most of us switched to brushless motors for a number of reasons...

1. short battery duration using NiMHs, or an SLA with brushed.

2. These ALBs have an on-Service speed of 25+ knots and for scale speed, only brushless motors and LiPos can sensibly provide the power and duration.

Model Slipway converted their demonstrator to brushless.

Hi Marlina,
I agree with Martin👍 Brushless are overkill for scale working boats.
A good quality and well lubricated brushed motor should not be noisy!
Go for a 5 pole motor if you can for extra smoothness😉

Brushless motors whine like scalded cats, especially at low speeds / RPM. it's a consequence of the pulsed DC used to control the speed.
Pitch rises with RPM until only dogs get annoyed!😲
Good luck with your project👍 Don't forget the Blog!
Cheers, Doug 😎

Your probably right about the motors i just thought why not try them, might be an expensive mistake for no real advantage apart from speed and maybe a little quieter. Thanks for the advice about bracing I'd not thought of that it may be a little flimsy.

I would always say if you don't need lots of speed stay brushed, "ordinary" motors.
As for styrene, it can warp horribly so needs more bracing than you might think or the kit manufacturer might tell you.

Brace with liteply or hard balsa/obeche where you can out of sight.

Martin