Hi Rick,
I think you meant Bauer Modelle!
https://www.bauer-modelle.com/epages/Bauer_Uwe46269592.sf/en_GB/?ViewObjectPath=%2FShops%2FBauer_Uwe46269592%2FCategories%2F%22Schiffsantriebe%2C%20Spezial-%20und%20Wellenantriebe%22%2F%22Z-Antrieb%20f%C3%BCr%20Motorboote%22
Cheers, Doug 😎

The motor and drive unit come from a German company ( Bauer- Modelle. com )
Motor- G power bl motor 3536 750kv 7.4-14.4 v Drive unit- Z drive G power 150 . hope this helps.
Rick

Hi Newby7, Could you please tell me the make and model of the outdrive & motor you are using on your build. It looks quite a compact unit compaired to the one I have also it looks a hell of a lot lighter than mine.👍👍

Update on the water cooling. Remembered I had these items. Will look to build an internal cooling system to cool the ESC. The good part is there is plenty of room to install all items. Also the water reservoir will be part of the ballasting.
Rick

Thank you all for the replies. I'm learning so much from this information. I will process all and figure out how to proceed.
Rick

Hi Newby7
If you look at
https://www.bauer-modelle.com/epages/Bauer_Uwe46269592.sf/en_GB/?ObjectPath=/Shops/Bauer_Uwe46269592/Categories/Wasserk%C3%BChlungen
they sell your motor and a cooling unit that attaches to the fixed plate on your motor where the three wires are attached. You may be able to modify your inboard motor fixing to allow this to fit. You will also need a water intake scoop just aft of the prop, plus an outlet shaft for the side of the hull. You can then connect some silicon tubing from the inlet to the motor, then to the esc and finally to the outlet shaft. I use small cable ties round the tube at each junction. I attach apic of my Sea Queen motor set up. This uses a large block of aluminium for the engine cooling but the principle is the same. The water enters from the stern and exits to the side of the hull. My ESC, again home made, has two cooling tubes hence the loop of tube.
Cheers
dave976

Hi Rick

That ESC is a replacement for the Volentex range of RTR (ready to run) boats and has two battery connections for batteries in parallel - is that what you wanted? Those type of boats are tight for space and to give good speed and duration they utilise two batteries.

Also that ESC has to be water-cooled as it is wrapped in plastic and doesn't have any cooling fins.

I've got a HobbyWing Seaking ESC which has cooling fins as well as water connections so should be alright without water-cooling though I'm going to change to HobbyWing car ESCs for other builds.

My Huntress at 23" doesn't have water-cooling and is fine but is run at varying speeds. My RTR race boats are fitted with ESCs like the one you have bought and are obviously run at constant high speed.

Chris

That's a nice looking bit of gear Rick,

You probably know this but you have an Outrunner in the photo.

It pays to check if the water cooling fittings are sealed properly.

You may be able to make a little water tank and use convection to circulate the cooling water but only if the controller is quite over rated, just need to be sure the speed controllers water cooling jacket is full of water.

Cheers,
Stephen.

Hi Trev,

The water inlet and outlets are beside the black output wires.

Cheers,
Stephen.

Hi Rick,
I don't see the water inlet and outlet on the ESC?
Trev

The units going into the Huntsman
Rick

Thank you all for the replies will read and look for a salutation for water.
Rick

Hi Rick.
I have a water cooled motor and speed controller in my Typhoon.
the water pickup has to be forward of the prop. thus negating or reducing any air introduced into the pickup. As any air in the system would reduce the cooling.
Circulation is provided by the forward motion of the vessel.
As a side note, if you don't see water coming out of the discharge, bring her in!!
Trev

Brushless Inrunners can have a cooling jacket fitted. Outrunners cannot though a fan can be fitted to blow cool air.
I have a brushless Outrunner in a cabin cruiser without any cooling and it never really gets hot. When I was selecting the motor I went for a Helicopter motor , the thinking being there is not as much air flow in a Helicopter and therefore the motors are designed to operate in more severe conditions than a prop driven Airplane.
My speed controller is water cooled and I have water running through it. IMHO I would run water through a speed controller that has a water cooling jacket, the reasoning being the "bits" that get hot will most likely be mounted where heat can transfer into the water, if there is no water present there is a high risk that the controller will over heat.

Cheers,
Stephen.

It's a stern-drive so a water pickup can't be fitted behind the prop! Well it could but it would be a lashup!

From the other thread it looks like an outrunner motor and cooling jackets or coils can't be fitted. A water-cooled mount is used if required but can't in this case as the motor is mounted directly to the stern-drive.

Many folks running brushless don't use water cooling and it shouldn't really be needed unless the motor is turning too big a prop which shouldn't be the case here.

The ESC could be cooled using a pump but I would try it without first as again it shouldn't really be needed.

Chris

Hi Rick,
One question I have is what sort of brushless motor are you going to use is it an Inrunner or Outrunner?
You said you are going to drive through a stern drive, can you put up some photos or information on it please.

Cheers,
Stephen.

HI newby7 if you will be using brushless motors and esc,s l would advise some form of cooling they do tend to get hot under load.
You can buy both inlet (waterscoop) and outlet at most hobby outlets.
As for the plumbing l use silicone tube to connect everything together.
Stay safe, Jim

Hi Rick in answer to your questions
1 Will I need to program the unit - YES
#2 do I have to hook up water? - Only if the ESC gets hot so recommended very easy
#3 If water hook-up needed how do I go about doing it. - You use a pipe pick up located behind the propeller you can buy a commercial item very cheap on ebay
#4 Will I need a pump to run water or are there water pickups. - No pump required as its pushed around by the propeller forcing it up the tube.
I suggest you look up the manual for the ESC and possibly there will be a programme card for it again not expensive if you want to see water pick ups look at
https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=model+boat+water+scoop&_sacat=0&LH_TitleDesc=0&_odkw=water+scoop&_osacat=0