Model Boat Mayhem

Please login or register.

Login with username, password and session length.
Pages: [1]   Go Down

Author Topic: Arun class hull  (Read 8576 times)

BlazingPenguin

  • Guest
Arun class hull
« on: September 22, 2009, 09:45:19 PM »

Picked up a 12th scale Arum hull, almost finished, leaving me with a superstructrure to build.

My son (technical Dept) was casting around for reference photos and was of the opinion that it looked very much like the Severn/Trent class hulls, can anyone tell me if there are major differences that we're not seeing in on-line pics ?

It would also appear that Arun's are rare these days, so a quick shift at this stage may be prudent.

Over to you chaps....
Logged

brianc

  • Guest
Re: Arun class hull
« Reply #1 on: September 22, 2009, 09:59:55 PM »

Hi Billy,
The Arun is 15.1mtrs long...at 1/12 scale that would make your hull ....49.5"
The Trent is 14.2 mtrs so that would make it 46.5"
The Severn is 17 mtrs ......55.7"
Time to get the tape measure out mate :-))
Logged

BlazingPenguin

  • Guest
Re: Arun class hull
« Reply #2 on: September 22, 2009, 10:06:46 PM »

Would that be 'Brian C' ?  :}

I know theres a slight difference in length, but I can scale the superstucture up/down to suit, its the the general hullform Im looking at for now.

The current Troon boat is a Severn, so much easier to get pics etc.
Logged

gingyer

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,555
  • Location: Glasgow
Re: Arun class hull
« Reply #3 on: September 22, 2009, 10:12:16 PM »

thee is quite alot of differance in the hull design
and the way they are shaped I am led to believe
phone the polis and go see their big boat it is an Arun
Logged

brianc

  • Guest
Re: Arun class hull
« Reply #4 on: September 22, 2009, 10:17:18 PM »

Hi Billy ,
Aye it`s me mate,try this...some line drawings of the hulls

http://www.shetlandcoastguard.co.uk/arun.htm

http://www.shetlandcoastguard.co.uk/trent.htm

http://www.shetlandcoastguard.co.uk/severn.htm

Think gingyer is right,the hull forms look different
Logged

BlazingPenguin

  • Guest
Re: Arun class hull
« Reply #5 on: September 22, 2009, 10:21:31 PM »

I just did an overlay in PhotoShop Colin, its very similar, but that section at the steps is much longer in the Severn and cant be adapted easily...so Arun its is then!
I bet old Jim McKay had loads of detail pics of the Arun, the only other was Fred Obrien and we dont see him these days eh?
Big Shug says he has a plan somewhere, but theres no great rush yet, we were looking inside tonight and theres enough done to allow us to start fitting motors and whatnot. I fancy doing one that can handle a wave and send it battering out on the Lomond !

The Strathclyde bizzies did have an Arun Colin, but I believe they changed it recently.

Hang on....its the Trent thats longer at the steps, Trent is better bu theres something different at the stern in that pic Brian, something sticking down like the 'hook' ine Tyne class ???
Logged

Colin Bishop

  • Full Mayhemer
  • *****
  • Online Online
  • Posts: 10,478
  • Location: SW Surrey, UK
Re: Arun class hull
« Reply #6 on: September 22, 2009, 10:25:06 PM »

My understanding is that all Aruns have now been taken out of service with the RNLI There is one in the lifeboat Museum at Chatham Historric Dockyard.

Colin
Logged

gingyer

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,555
  • Location: Glasgow
Re: Arun class hull
« Reply #7 on: September 22, 2009, 10:29:03 PM »

just checked with the polis apparently they double parked it on a rock
and it had to get towed away {-) {-) {-)
to much to get repaired so sold to a private collector
Logged

BlazingPenguin

  • Guest
Re: Arun class hull
« Reply #8 on: September 22, 2009, 10:32:01 PM »

Ah well..... {-)

BTW Brian/Colin....any news from Michael?

Charlies home from the hospital too.
Logged

ajb68

  • Guest
Re: Arun class hull
« Reply #9 on: September 22, 2009, 10:35:05 PM »

A quick e mail to the rnli will get you some pics , ive built a couple of lifeboats and theye were very helpful even supplying plans for a small charge
Logged

gingyer

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,555
  • Location: Glasgow
Re: Arun class hull
« Reply #10 on: September 22, 2009, 10:54:52 PM »

Ah well..... {-)

BTW Brian/Colin....any news from Michael?

Charlies home from the hospital too.

nothing yet
Logged

Perkasaman2

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 903
  • Model Boat Mayhem is Great!
  • Location: North East
Re: Arun class hull
« Reply #11 on: September 23, 2009, 11:18:33 AM »

The Canadian Coast Guard continue to use Arun boats for coastal rescue, although they were built under licence in Canada - there,s  a lot of detailed  info about each boat on their home website. Interestingly they run at higher quoted max speeds (20+ knots) than those that were in rnli service. The CCG Aruns are now gradually being replaced by smaller American CG types.  :-)
Logged

Martin [Admin]

  • Administrator
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 19,473
  • Location: Peterborough, UK
    • Model Boat Mayhem
Re: Arun class hull
« Reply #12 on: September 23, 2009, 12:24:36 PM »


For those of use that can't tell the difference between one Orange Lifeboat and another...  :P



http://en.wikipedia.org/wiki/Arun_class_lifeboat
Logged
"This is my firm opinion, but what do I know?!"    -   Mayhem FaceBook Group!

ajb68

  • Guest
Re: Arun class hull
« Reply #13 on: September 23, 2009, 04:13:07 PM »

Thanks for the photo Martin  :-)) you dont see many pictures of the watson class boats any more  {-)
Logged

johno 52-11

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 297
  • Model lifeboats built to perform
  • Location: Dudley "The Blackcountry" West Midlands
    • lifeboat Models
Re: Arun class hull
« Reply #14 on: September 23, 2009, 09:16:25 PM »

To answer the original question the Main differences are the Bilge keels and the Chine of the hull. The Severn/Trent have bilge keels and a hard chine and the Arun has no bilge keels and a round chine.

The next thing to check is the 1/12 hull you have a 52' or a 54' the 54's have a round stern and the 52's have a flat stern. There where only five 54's built 54-03 to 54-07.
Now for the wheelhouse. these where not all the same boats 52-01 52-02 and 54-03 all had one off wheelhouse's and 52-01 had flat side decks 54-04 through to 52-07 all had the GRP wheelhouse that can be seen in the picture that Martin posted. all the boats from 52-11 to 52-46 had the aluminium panel top.

I can tell you where the Arun the Strathclyde police had is now. It belongs to a friend of mine and is at Portishead been repainted orange renamed back to her original name and is available for trips http://www.thearunexperience.co.uk/ I was out on it last weekend for a couple of hours and she's in really good condition. 

As you mentioned Troon they had 52-38 City of Glasgow lll from 1987 to 2004

now someone mentioned a Watson. Which one ? there were 8 Watson designs that had motors fitted :P {-)
Logged

nemesis

  • Guest
Re: Arun class hull
« Reply #15 on: October 19, 2009, 08:52:30 PM »

Hi, do not forget that the Arun has semi tunnels underneath & the rudders are offset to the prop shafts, so you can withdraw the shafts without disturbing the rudder gear.
                                         Nemesis
Logged

theberengersniper

  • Guest
Re: Arun class hull
« Reply #16 on: October 20, 2009, 02:55:42 PM »

Hi,

I'm new to the forum.

I'm currently building the Model Slipway Trent kit (1/16th scale). I notice that you mention the Troon boat in your post, are you local to there? I'm in Troon as well, so if it would help you out you're welcome to pour over my plans.

Fraser.
Logged

gingyer

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,555
  • Location: Glasgow
Re: Arun class hull
« Reply #17 on: October 20, 2009, 05:14:01 PM »

Hi fraser
The troon lifeboat we were discussing was the previous
Arun class the City of Glasgow
not the present one

Where do you sail out o interest ?
I am in glasgow :-))
Logged

johno 52-11

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 297
  • Model lifeboats built to perform
  • Location: Dudley "The Blackcountry" West Midlands
    • lifeboat Models
Re: Arun class hull
« Reply #18 on: October 20, 2009, 09:32:40 PM »

Hi, do not forget that the Arun has semi tunnels underneath & the rudders are offset to the prop shafts, so you can withdraw the shafts without disturbing the rudder gear.
                                         Nemesis

Hi Nemesis

Are you getting your Arun's and Severn's Mixed up. All the information I have about the Arun shows no semi tunnels and the rubber is in-line with the prop shaft. The Severn does have semi tunnels created by the Bilge keels and I do know that the rudder and shafts are not in-line so you can remove the shaft without removing the rudder. It also helps with steering when running on one engine.

John
 
Logged

gribeauval

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,077
  • Tidy Bench -Tidy Mind, Messy Bench - BUSY!!
  • Location: Wakefield West Yorkshire
Re: Arun class hull
« Reply #19 on: October 20, 2009, 11:03:02 PM »

On the drawings that I have for the 54 ft  Arun ON1052, the GA as fitted sheet, Drawing  No 16M/10689/A (Dec 1978) shows that the centre line of the propshafts is just inboard of the rudder shafts by about 3".

The Composite Lines Plan for the 52 and 54 ft Arun, Drawing No 16M/8821/A (Dec 1973) shows that there are no "tunnels" as such, just shallow indentations in the hull.

Logged
True Lifeboat Nutter!!

theberengersniper

  • Guest
Re: Arun class hull
« Reply #20 on: October 21, 2009, 08:14:29 AM »

Where do you sail out o interest ?

Hi Gingyer,

Until now i've used a boating pond behind the Magnum Leisure Centre in Irvine. It's quite a large expanse of flat water, although you do have to negotiate the odd shopping trolley dumped by Irvine's less desirable people.

I've heard that Largs has a good club so I think i'll be sailing my Trent there.

Fraser.
Logged

gingyer

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 1,555
  • Location: Glasgow
Re: Arun class hull
« Reply #21 on: October 21, 2009, 09:22:57 AM »

Sailed at largs many a time
a nice club and alwas welcoming to people
you should go up and see them

this is the Scottsh federation website
http://www.sfmbc.net/
It can give you details on shows in scotland
Logged

furball

  • Guest
Re: Arun class hull
« Reply #22 on: October 26, 2009, 07:18:28 AM »

gribeauval's drawing is correct for all the Aruns. If you have the Models by Design / Metcalf / whereever it was from originally hull with the moulded on deck, then the hull shape is incorrect under the waterline, as it doesn't have the 'tunnels' moulded in at all.

Lance
Logged

SJHE

  • Guest
Re: Arun class hull
« Reply #23 on: February 18, 2011, 08:24:33 PM »

gribeauval,

Could you please let me know where you got the Arun lines plans from? I've been looking for some lines and/or table of offsets for some time now but have had no luck. GA's i know are available from the RNLI but alass no lines....

Any help appreciated.

Thanks
Logged
Pages: [1]   Go Up