Hi folks
it works :D

Well,
inspired by the presentation of naza's "Orca" i decide to publicize my newest project.
Scratchbuild from many Photos on the net (and poor information and doku from builder and shipyard :-( Unfortunately, the BOW is a registered trademark, its difficult to get detail information about the hull.
I decided to build a AX(-)102 AHTS, oneof the smallest models of the BOW series.
(because it will fit into my car ;-)

At first there were some 1/200 paper models to test the design of the BOW.



followed by a 1/50 plywood



banding with balsa wood



nearly closed



it looks realistic ??



filled and primed



Filling and sanding is a never-ending story...
If you turn the hull a little bit and the angle of light changes, you can see your mistakes. Again and again and again.... :-(


regards
offshore

May i ask you something,What type of plaster you used to cover the balsa wood planks or did you used fabric fiber Instead of plaster. Because Fabric fiber is much lighter than a plaster and its suitable for r/c right?

Hi naza

filling material is a 2 komponent polistyrene putty.
Hereabout it is available in many supermarkets and especially in car-supply-shops.
It can be reworked after ~one hour, but its a heavy job....

Therefoere, i get a little tricky ;-)
U can blend -up to 30%- of so-called "micro baloons" to the filler.
This are holow glas bubbles, much more lighter than the filler itself in a diameter like powder. This "baloons" make it easier, to sand the surface.
Unfortunately, it is an industrial product. U will not find it in your next drugstore etc...
I got the bubbles on the net, definite: on eb@y ;-)

CU
offshore

I believe microballoons are available locally here from Multifilla.

cheers :)

Really?? ok sounds good ;) thanks bro

There's a thread discussion on microballoons here
How convenient, eh? :lol:

cheers :)

Ok, go on....

the ready sanded hull is painted to get a clear surface



First impression with the placed decks
Plywood and balsa removed
Decks are made of GRP, using a "sandwich"-technology.


Ok, thats it for today ;-)
Have a nice time
offshore

Hi Peter,

That is one impressive build you got there. I like how you build a smaller scale of the paper model before building it to a bigger scale using plywood.

What does GRP stands for?

Thanks a lot Peter....It think now i've a solutions how to duplicate all my huge project including aircraft.Since i know how to get the miterials ,i should be able to try on my next project.At least i can duplicate the hull and recast all the other parts .

Yours absalutely much much beter than mine.Can't wait to see what the next step. :D

Thanks again Peter ;)


Naza

Hi



Correct me if i'm wrong:
my Lexica says:
glass-fiber reinforced plastic [abbr.: GRP] [tech.]

I do not have an other name for our german GFK. It means a glasfibre canvas with epoxy or polyester resin. Is there a more common word for it in english?

The decks are made of 3 layers.
At the top and the bottom a layer of ~200g/m² flasfibre canvas. Between there ist a special padding material also made of a kind of glasfibre. This layer ist about 3 mm in thickness but very light.
That gives a very leightweight sandwich, with high stability and torsion resist.
The middle layer can also be made of other materials eg. polystyrene plates or carbon honeycombs.

THX for your commendation :rolleyes:
But at first, its only bigger....

Have a nice day

I see... the reason I'm asking is because the colour of the material is black while here in Malaysia, the glass fiber has a brownish tint and the resin is clear.

Thanks for the explanantion. :D

Ah!

the black is an added color to the resin.
U can detect errors in the surface much more better with a colored surface. Otherwise you will always see the structure of fibre in the half transparent resin.

Usually my fibres are snow white, the resin sometimes has a tickle to honey.

bye

Thanks for the tips Steven....

BTW what type of color suitable for resin then? water base color,Thinner or enamel base.What is the best portions to mix resin and the color?

Thanks in advance

Naza

Hi Naza

The base of this colors is resin itself with mixed color pigments in.
I got it from the shop who selled the resin and glasfibre.

Think it'll NOT work with enamel or nitro based colors. Be aware of waterbased...

Thanks Peter... ;)

And go on
Some details ?....

the front thruster made of brass with a diam. of ~38 mm. The absolute maximum, my little milling machine can get..
BTW only @Naza: The orca has only one thruster...


I decided, to build a silicone negative for my rudders. (This will be not the last rudders in 1/50 i guess ;-)


Bras prop of the main machine with a diam. of 75mm. The kort-jet is also made of brass, a friendly fellow produced
the rings on his bigger machine.


The mounted kort-jets with the propeller shafts


Ok, thats enough for today ;-)
Have a nice time
offshore

Some pics more....

A rear sight of the aft with the cable pulley in the midle


First trial in my garden pond. Poohhh.. about 30 kg.


Detailing the backside of the superstructure.


I have to build the stringers of the superstructure 'cause you can see it through the "window"


Ok, thats enough for today ;-)
Have a nice time
offshore

WOW :o Very well progress so far...i do believe this BOW will turn out superb ;)

Can't wait to see the next update offshore ;)

Hi friends

Be carefull, progress isn't as fast as shown here ;)
Starting of the project was in sept 07 with scratching the hull and building the paper modell.
With this pics the "fast forward playing" in time will end. This is the actual state of affairs:

The undersea hull was primed


The rear transversal thrusters. Due to small mounting space they didn't work with a gear drive but with a water pump solution.


At top and bottom the two main machines. Between the 2 pumps for the rear thrusters.


Adapting the main deck. It's temporarely placed and can still be lift off. The blue cover is on of two caps to close the apertures in the deck.


A first underwater test with the covered deck ... It works :-)



Have a nice time
offshore

Good progress you got there. Can't wait to see it working. :D

Ouups...?
Another ship ? ;)

You have PM!

Peter,
enjoying the work in progress posting so far.
I guess you must have completed a few of this projects by now. Care to show us some archive pictures?

Sorry about the poor quality
Most of them are scanned 20-year-old photographies and taken by a "pocket-camera"...
Unfortunately i can find only few pics of my 15-20 models, build in my youth.

The supply vessel "Holstentor" in the front (my first model, at the age of ~14!) and a wodden Missisippi steam at the rear.


The buoy vessel "Otto Treplin" in a 1/50 scale


The "MS Hammonia" at an exhibition.


Another pic of the Hammonia, nearly ready. Built in a 1/100 scale, nearly 1,6 m long.


The "Jean Bart", the only survival of my youth's projects.
A 60-years tug, old, dirty and wheathered...



There are sevaral models in mind, but can't find any pics of it...
Have a nice time
offshore

Very nice collections you've there Peter.....well done.....what can i say....you're an expert...glad to have you here ;)

Hallo Offshore,

Very impressive AHTS Model!

did you already some "sea trials"


Kind regards

Hi supply vessel
Welcome to this thread :rolleyes:

At now, there were a few experiments in my garden pool.
Remember: Here in Germany there is winter-period and the seas are frosted mostly of the time!
Maybe in 4 or 6 weeks?

Actually, i'm glueing in the main deck and searching for a resolution to easily de-air my thrusters...

offshore

Hi friends
progress still goes on ;-)

I've used the last sunny -but cold- days to drill and saw details at the main deck. Milling and sawing of the GRP may be harmful and dusty. Therefore, i believe it's better doing this outdoor...

The main deck is glued and laminated from the bottom side


Scuppers are made with the help of a little proxxon and a diamant saw.


Cargo rail is temporarily placed. It will be plugable because of brushing the still missing details.



Have a nice time
offshore

Hi friends :-)

After "comming out" with the BOW on our sea last weekend, I startet a new posting in my home forum.

RCLine forum

Don't be annoyed, but I'll continue this post in my german forum. (it's taxing to discuss the same themes in several forums..)
I would like to invite you to RCLine. Offcourse ist a german one, but don't be affraid to write in english (I'm shure some of us guys can read and write...).

THX for the time here and the helpfull contacts! The shortcut to this forum will be in my drop-down-list furthermore (your "wheatherers" work fine!)

Peter

It was a very nice ship.. I was wondering if you ever wanted to built any RC military ship?

hi

in the youth i had built a torpedoboat and 2 warships of the destroyer class. They all were about 1 m long, the destroyers in a 1/100 scale, the torpedo boat 1/25.

But sorry, all were saled in the past 20 yeares and no pictures found....

Peter

Finally she is in the water. Looks like everything is working very good.

Some new pics...

the hull is painted






At a meeting with the IOS (Intenational Offshore Society)



Progress still goes on but slows down...
Last project was the RC-working the deck crane.

Actually I'm learning to programm a microprocessor chip to simplify the electronical tasks on the RC. This takes a lot of my time....

Peter

:o wowwwwwww :huh: ....so damm nice.

thats will encouraging me to make another BOW.....Congrates ...well done.....

man.... i just couldnt believe this boat is not made from factory...

very nice..!!!!