Author Topic: AHTS. Maersk Master scale 1/50.  (Read 32170 times)

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M.Trader

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AHTS. Maersk Master scale 1/50.
« on: April 05, 2010, 20:22:16 »
Hello.

My name is Leen Boers and lives in teh Netherlands.
I will make a photo serie of making the model of the Maersk Master scale 1/50.
I started building the MM in 2000.
The model is 164 cm long and the total weight at the moment is in the water 60 kg.
At the moment I am finishing the model and start building a model of the Maersk Trader.

I will upload photos from the start building the wooden plug.
(excuse for my bad english writing)

First some photos about the situation now.
The photos are made summer 2009.











The wooden hull,













« Last Edit: April 06, 2010, 15:12:36 by M.Trader »

Footski

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Re: AHTS. Maersk Master scale 1/50.
« Reply #1 on: April 05, 2010, 22:45:31 »
Leen,

Welcome to the forum and many thanks for posting the pictures. She is a very beautiful model. How is she powered and what size is she?

Keep the pictures coming.... :) :) :) :) :)

Barry
Barry

chipchase

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Re: AHTS. Maersk Master scale 1/50.
« Reply #2 on: April 06, 2010, 00:30:47 »
Hi Leen

She looks a fantastic model, looking forward to the build photos.

(Your English is a lot better than my Dutch) ;D ;D ;D

Brian
Brian

Kieran H

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Re: AHTS. Maersk Master scale 1/50.
« Reply #3 on: April 06, 2010, 06:25:41 »
amazing model tug. how ong did it take you to make?

tugs53

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Re: AHTS. Maersk Master scale 1/50.
« Reply #4 on: April 06, 2010, 08:39:04 »
First Class work Leen!!!!!!!!!!!!!!!!!!!


Very well done!!!


...Cheers...
« Last Edit: April 06, 2010, 08:43:15 by tugs53 »
MIKE

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Re: AHTS. Maersk Master scale 1/50.
« Reply #5 on: April 06, 2010, 10:18:17 »
Welcome to the Forum, Leen. I am really looking forward to your build. Looks like we can learn much from you. Keep those pictures coming.
VGJQ

M.Trader

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AHTS. Maersk Master scale 1/50.
« Reply #6 on: April 06, 2010, 15:10:59 »
Hello Again.

The Maersk Master have a very differant propulsion system as normal AHTS vessels.
The MM have one big main pitch controlles propeller in the middle (100 mm in model) and on both sides a azimuth thruster (45 mm in model).
In front she have two normal bowthrusters (42 mm in model)

As original the main prop is pitch controlled and the bow and stern thrusters are working as original.
The azimuths are 360 degrees turnable and electronic (switched) mixed with the main prop.
About this electronic talking later more

The main PCP kan be removed from the fixed build propeller shaft.
Also the gearing of the Azimuths and bowthr can be removed for maintenance.

The decks are made of plexy, also the main stern deck is made of plexy.
To get a full watertide sterndeck only the hatch must tape watertide and its done,
Above the plexiy deck is the original dek with the wooden planks.





















The main prop get a two motor drive system.
Two motors are backwarts situated to get more space for the three 24 amp batteries.
Also to controle the pitch of the main prop I use a separate drive unit.
The two motors drive this unit with belts,
To controle the pitch, the main one axel must pull or pushed by a 16 kg servo.
This system is not so perfect as the original two axel system.

For the Maersk trader I will build 4 new propellers. (2 for the Trader,1 for the MM and 1 reserve)

I use a special mix program to get a reliable pitch contol.
The ESC and pitch servo are mixed.(later more by electronic parts)










« Last Edit: April 06, 2010, 15:21:13 by M.Trader »

Kieran H

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Re: AHTS. Maersk Master scale 1/50.
« Reply #7 on: April 06, 2010, 17:47:18 »
that is absoulutley amazing machining youve done. how do you get the pitch right and how do you change the pitch?

chipchase

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Re: AHTS. Maersk Master scale 1/50.
« Reply #8 on: April 07, 2010, 00:27:44 »
That looks a very complicated steering system you have fitted Leen, cool (excellent)

Brian
Brian

Model Tug Man

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Re: AHTS. Maersk Master scale 1/50.
« Reply #9 on: April 07, 2010, 04:06:22 »
Check out that shop--this guy is a pro. Excellent work Leen. :) :)

I am going to take up knitting now. :'( :'(
VGJQ

tugs53

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Re: AHTS. Maersk Master scale 1/50.
« Reply #10 on: April 07, 2010, 08:03:34 »
All I can say is WOW!!!!
MIKE

M.Trader

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AHTS. Maersk Master scale 1/50. part 3
« Reply #11 on: April 07, 2010, 19:37:54 »
Hello

About the propulsion, the MM use a very special propulsion.
One main Pitch controlled Prop, with beside at each site one azimuth Thruster.
The Azimuth thrusters are build with a angle of about 8 degrees.

My goal was to control al propulsion as original.
Pitch controlled main Prop, the Azimuths controlled 360 degrees and also the bow-thrusters separate of each other.

The azimuths was the most difficult, the motors are situated upside down. and drive the azimuth by belt.
To control the azimuth I used a 16 kg torque servo drive by gear 4/1.
So the azimuth can turn 360 degrees.

My most important goal was that the Azimuth must turn more than 360 degrees and I must see at the transmitter the exact position of the Azimuths under the model.

At the programmable RC transmitter Graupner MC 22 I build tho control Inst witch also turn 360 degrees, with two sticks to control the SEC of the motors.
With the MC 22 I can program the Azimuths like original with one problem, It is now endless system.
I build this system 7 years ago.
At the moment a good friend of my modified my sytem with new programmable software and build a endless controllable steering system which also take sthe shortest route to the new position.
I will maybe use his system later.

The bow thrusters are also self made and driven by normal buhler motors,
I can control these separate.

And the most important With the MC 22 I can programm the complete propulsion system together to one stick as original.
It,s realy great to sail this model so easilly. like original.
At our IOS meetings two captains who's sail teh original MM where impressed about the copied sailing properties.

The MM get a very full build bow structure and sail very differant as normal AHTS. But she's is very powerfull model, in combination with the weight of 60 kg a great model.

Now some photos of the propulsion.
Al teh 5 ESC are situated under teh watertide (plexy) sterndeck.
The wiring is build in separate, Electronnic (twisted) at port side, the normal 12 volt wiring at starboard.

The main switch board is situated in the front.
Each group is separated fused and swiched.

The most of the ESC at teh photos are replaced by electronic programable versions.

























Main rudder




chipchase

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Re: AHTS. Maersk Master scale 1/50.
« Reply #12 on: April 08, 2010, 01:00:30 »
Leen you are truly a master builder, thanks for the photos of your drive system setup, I for one would not know where to start.  ;D ;D
 (Learning something new every time you post)

Brian

seegurke

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Re: AHTS. Maersk Master scale 1/50.
« Reply #13 on: April 08, 2010, 02:35:38 »
Speechless... one awesome model! :)

Can you please tell more of your controllable pitch propeller? Mainly, the propeller itself is interesting for me because I will start to build the "Sea Diamond V" this year and I plan to fit two CPP with 90mm diameter. I do have the main knowledge and modeled a first version in CAD but I'm not happy with it at all...
David

Kieran H

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Re: AHTS. Maersk Master scale 1/50.
« Reply #14 on: April 08, 2010, 15:05:12 »
thats still mind blowing model machining. until now ive oy seen those cheap plastic one. the propeller is beautifuly deatiled. great work again.