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Author Topic: Offshore Tug/Supply build Union Fighter/Wrestler  (Read 1345 times)

chipchase

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Re: Offshore Tug/Supply build Union Fighter/Wrestler
« Reply #25 on: October 08, 2021, 07:21:38 pm »

Every Pictures a learning curve for me better then reading a book on model making.
                Regards Howard.


Im pleased your enjoying the build and the photos Howard.

chipchase

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Re: Offshore Tug/Supply build Union Fighter/Wrestler
« Reply #26 on: October 09, 2021, 08:42:44 pm »

Finished fitting the keels today filled and sanded.

chipchase

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Re: Offshore Tug/Supply build Union Fighter/Wrestler
« Reply #27 on: October 09, 2021, 08:57:05 pm »

After finishing the keels I started on the bracket for the bow thruster.

chipchase

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Re: Offshore Tug/Supply build Union Fighter/Wrestler
« Reply #28 on: October 10, 2021, 07:07:10 pm »

A bit more done on the thruster motor bracket today, not much more to do before its permanently fitted into place.

chipchase

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Re: Offshore Tug/Supply build Union Fighter/Wrestler
« Reply #29 on: October 11, 2021, 08:05:46 pm »

Further progress with fitting the thruster, I fitted a support bracket for the motor mount as the only thing that would be supporting it would be the grub screw. I decided to glass the thruster into the hull lets hope it won't need to come out at a later date LOL, I also decided to  give the hull an extra coat o resin while I was glassing the thruster.


A small amount of filler was used on the thruster outlet and primer added to show any imperfections.

derekwarner

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Re: Offshore Tug/Supply build Union Fighter/Wrestler
« Reply #30 on: October 12, 2021, 02:28:20 am »

Brian....


The bow thruster from Modelbau appears to be an excellent ..if not near industrial quality...[best on the model market?] is there a recommended input shaft speed relative to the [propeller] diameter/size and a recommended motor power input?


Your installation triangular mounting gusset and the fabricated brass section vertical bracket appears securely robust [but needed
:-))   


What is the distance between water level & the axis of the thruster....~~150 mm?


We see the 'hefty' brushless motor, so is there a potential for 'scale' cavitation or will this be eliminated/minimised by a speed controller? ....would you only conclude cavitation by a discharge foam with bubbles, or an audible increase in motor speed?

Derek
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Derek Warner

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Illawarra Live Steamers Co-op
Australia
www.ils.org.au

6705russell

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Re: Offshore Tug/Supply build Union Fighter/Wrestler
« Reply #31 on: October 12, 2021, 07:23:53 am »

I have two Bauer thrusters and must say the engineering is quality. Your build is looking well Brian.
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chipchase

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Re: Offshore Tug/Supply build Union Fighter/Wrestler
« Reply #32 on: October 12, 2021, 08:41:38 am »

Brian....


The bow thruster from Modelbau appears to be an excellent ..if not near industrial quality...[best on the model market?] is there a recommended input shaft speed relative to the [propeller] diameter/size and a recommended motor power input?


Your installation triangular mounting gusset and the fabricated brass section vertical bracket appears securely robust [but needed
:-))   


What is the distance between water level & the axis of the thruster....~~150 mm?


We see the 'hefty' brushless motor, so is there a potential for 'scale' cavitation or will this be eliminated/minimised by a speed controller? ....would you only conclude cavitation by a discharge foam with bubbles, or an audible increase in motor speed?

Derek



Hi Derek
The thruster is very well made, unfortunately no info is given regards motor power and shaft speed, I have had it up to 2500 rpm and runs very smooth.

Your spot-on regarding water level and axis 150mm :-)) 

The brushless motor is just one I had in stock that I posted just to show how Its fitted, I will be using a speed controller for the motor but if needed I will buy a new motor if needed,
(any recommendations regarding brushless motors would be apricated as Iím not up to scratch with these motors)

Brian

chipchase

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Re: Offshore Tug/Supply build Union Fighter/Wrestler
« Reply #33 on: October 12, 2021, 08:52:54 am »

I have two Bauer thrusters and must say the engineering is quality. Your build is looking well Brian.


Cheers Russell I am quite enjoying this build, slowy getting back into the modelling. the thrusters are very well made as you say.
Brian

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Re: Offshore Tug/Supply build Union Fighter/Wrestler
« Reply #34 on: October 12, 2021, 03:14:10 pm »

Good on you Brian, I am stumped for a few weeks, just moved house so waiting for new garage/workshop to be built  <:(
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chipchase

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Re: Offshore Tug/Supply build Union Fighter/Wrestler
« Reply #35 on: October 14, 2021, 05:14:07 pm »

Not a lot done over the last couple of days just the anchor boxes made and fitted.

chipchase

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Re: Offshore Tug/Supply build Union Fighter/Wrestler
« Reply #37 on: October 15, 2021, 04:47:14 pm »

Good day today, cooling water intakes made and fitted, tomorrow hopefully get a start on the stern roller box.

chipchase

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Re: Offshore Tug/Supply build Union Fighter/Wrestler
« Reply #38 on: Yesterday at 06:30:51 pm »

A good couple of days working on the build, stern roller just about fitted. Anchor boxs cooling water intake boxes and stern roller laminated in.
I made spring loaded pins for the roller for easy fitting.
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