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Author Topic: RV Nord Icelandia  (Read 47102 times)

Ghost in the shell

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Re: MV Nord Icelandia
« Reply #175 on: February 03, 2008, 10:56:08 PM »

Cos, it was a tad tricky to line up, however it will be nice to deploy in the lake close to the jetty
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cos918

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Re: MV Nord Icelandia
« Reply #176 on: February 03, 2008, 10:58:37 PM »

it will be certainly be a crowd pleaser
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Ghost in the shell

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Re: MV Nord Icelandia
« Reply #177 on: February 03, 2008, 11:00:30 PM »

as long as everything goes right :) but its been fun building it.
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hama

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Re: MV Nord Icelandia
« Reply #178 on: February 03, 2008, 11:18:05 PM »

Amazing and inspiring!
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Ghost in the shell

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Re: MV Nord Icelandia
« Reply #179 on: February 03, 2008, 11:35:38 PM »

yup, just the cladding and cosmetics now including a landing tray for the sub
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Ghost in the shell

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Re: MV Nord Icelandia
« Reply #180 on: February 04, 2008, 12:29:01 AM »

After watching the vid after several uploads onto other forums, I am still amazed to see how little Nord Icelandia is actually affected by the movement of the A-frame as it transits the arc with the sub in the cradle.
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Ghost in the shell

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Re: MV Nord Icelandia
« Reply #181 on: February 04, 2008, 12:41:23 AM »

after a successful test, work has begun on the cladding and cosmetics
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Stavros

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Re: MV Nord Icelandia
« Reply #182 on: February 04, 2008, 09:17:38 AM »

Got to take my hat off to you EXCELLENT work there.What are the 2 cables comming from the A frame are they for servos on the cradle???


Stavros
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Ghost in the shell

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Re: MV Nord Icelandia
« Reply #183 on: February 04, 2008, 11:16:21 AM »

the two loose wires are the feed wires to the two micro servos on the A-frame itself.  eventuallly when all the cladding is done, they are going to run tight to the arms.
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The long Build

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Re: MV Nord Icelandia
« Reply #184 on: February 04, 2008, 01:07:43 PM »

So how about getting the crane to work and lift the rib/lifeboat into the water ??
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Ghost in the shell

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Re: MV Nord Icelandia
« Reply #185 on: February 04, 2008, 01:27:28 PM »

So how about getting the crane to work and lift the rib/lifeboat into the water ??

its a resin crane and resin RIB from sirmar, however the idea hasn't gone un noticed, I do have two spare channels as well.
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Ghost in the shell

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Re: MV Nord Icelandia
« Reply #186 on: February 04, 2008, 05:16:19 PM »

progress
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Ghost in the shell

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Re: MV Nord Icelandia
« Reply #187 on: February 06, 2008, 12:42:24 AM »

progress, and a slight change of the frame.  rather than having the doors form a cradle, the sub is to be gripped using compression pads made of rubber, making it easier to lift off and place onto the deck cradle
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Ghost in the shell

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Re: MV Nord Icelandia
« Reply #188 on: February 06, 2008, 12:46:08 AM »

Working to an idea off our very own STAVROS has been used, run the servo wires down the INSIDE of the arms.

Stavros, Thanks for that idea, works a treat!!!! O0 O0
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The long Build

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Re: MV Nord Icelandia
« Reply #189 on: February 06, 2008, 12:49:23 AM »

Next thing to do will have some sort of mechanism to move the sub to and from the hanger.. Go on, you know you want to !!
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Ghost in the shell

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Re: MV Nord Icelandia
« Reply #190 on: February 06, 2008, 12:51:30 AM »

Next thing to do will have some sort of mechanism to move the sub to and from the hanger.. Go on, you know you want to !!

its possible, though will need a lot of highly invasive surgery on the back hangar, there's a huge wooden beam at the base of the end wall that is used to mount the wall to, however i did think of it, complete with reversing siren as well.

the red section is going to be plated over with a roller shutter
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Re: MV Nord Icelandia
« Reply #191 on: February 06, 2008, 09:00:55 AM »

Seem to be getting quite a lot of top weight there Ghosty, it aint going to roll over on the turn is it ?  :-\
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Re: MV Nord Icelandia
« Reply #192 on: February 06, 2008, 11:34:06 AM »

dicky, its stable :) early sailings have been done with the old A-frame, and yes she rolled a little, however a ship like that is slow and lumbering.  what makes it look top heavy, is the fact that the aft deck is so low, and the fore-deck raised so high.

some measurements taken from waterline based on a draught of 50mm
freeboard - aft deck 10mm (to base of freeing ports NOT including bulwark height)
freeboard forward - 45mm (to deck level NOT including bulwark height)
height to centre of cradle on A-frame - 140mm @ top dead centre
height to bridge roof - 150mm
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Ghost in the shell

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Re: MV Nord Icelandia
« Reply #193 on: February 06, 2008, 12:17:29 PM »

if i think it is rolling excessivley in turns, simple answer is to turn slower with redced rudder through, unlike tug kenny i wont be endulging in aggressive driving ;)

driven carefully, this, as nicely demonstrated by the red pelican driven by Tug Kenny...

...shouldnt happen.

that roll over was because of enthusiastic driving, its a research ship not a speedyboat.  O0 O0
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offshore1987

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Re: MV Nord Icelandia
« Reply #194 on: February 06, 2008, 07:02:16 PM »

In all fairness real ships role/list and have to slow when turning  O0 so slowin down to turn is very real

All the best
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Ghost in the shell

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Re: MV Nord Icelandia
« Reply #195 on: February 06, 2008, 07:14:43 PM »

offshore, i have found that she rolls a little in corners anyway, hence epa set at 30% power.

To reduce the likelyhood of water getting inside the lower section where the motor is the aft deck's access hatch is screwed down, a lesson I learned from the red Pelican, as a result Nord Icelandia has some protection against Redpelicanitis.

there's a full build log on RC GROUPS in the dock talk section, by the way, nice U16 i saw there.

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offshore1987

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Re: MV Nord Icelandia
« Reply #196 on: February 06, 2008, 07:36:12 PM »

 O0 Ta

Maybe some bathroom silicone selant would do the job? Could then run another wire from the battery/batterys along so you can get to them with out taking the hatchs off? That way you could charge the batts in the boat ( so no need to pull the hatchs up alot )

All the best
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Ghost in the shell

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Re: MV Nord Icelandia
« Reply #197 on: February 06, 2008, 11:48:25 PM »

I can now RELAX, all i need now is the plastic filler and some odds and sods, structurally there is just one job to do, a control room off the aft hangar, and maybe, just maybe a small scafold frame with a antenna ball on the top, though that item can wait, give me something to do at a show or something.

Once the structure is filled, I can then paint her up how I want her painted.  but for now, sit back and relax!!!
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Ghost in the shell

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Re: MV Nord Icelandia
« Reply #198 on: February 07, 2008, 12:21:40 AM »

something to ponder..

on an idea given to me by The Long Build, about having the zodiac crane working..

to do that I would need 4 relay switches, 5 Y-leads a sail winch and another servo. 

here's the idea..
take ch5 and plug in a Y-lead, then into that Y-lead plug in 2 more, giving me a 4-way splice.
plug each relay switch into that.

take the other two Y-leads, break either signal or live, and feed that wire through the switching contacts of the relay switches. then plug those into the required channels, and plug the servo extentions into those Y-leads.

so in 1 position the a-frame and grab work, the other position its the crane.  which wire do I break!
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bigfella

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Re: MV Nord Icelandia
« Reply #199 on: February 07, 2008, 12:23:36 AM »

A great achievement mate and you must be congratulated for all the work. You did not work from a plan and the design was from your head it is first class and puts most plans to shame. Well done.

Regards David
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