Model Boat Mayhem

The Shipyard ( Dry Dock ): Builds & Questions => Submarines => Topic started by: abreese on March 26, 2015, 04:46:22 pm

Title: Darnell sub hull
Post by: abreese on March 26, 2015, 04:46:22 pm: :o just picked up a tatty darnell s-class hull and bits,does anyone know of a watertight compartment as this one is a potential cullander.
other alternative is the hamster tube,would like to keep it original!.
thanks ab
Title: Re: darnell hull
Post by: U-33 on March 26, 2015, 10:57:47 pm: Try asking IanPAL nicely, I gave him a brand new S class radio box recently, but I thnk he's decided to fit a cylinder now. He's away until the weekend, by the way...

Failing that, I have a brand new Darnell box for the O/P class boat, it's a bit narrower than the stock one, but it'll fit ok.
Title: Re: Darnell sub hull
Post by: abreese on March 27, 2015, 01:30:24 pm: ;)interested in the darnell box you have,please send price and how to pay,thanks for prompt reply.
alan b
Title: Re: Darnell sub hull
Post by: U-33 on March 27, 2015, 05:35:27 pm: Hi Alan,

Sorry for the late reply, I don't know how I missed your reply...call it a 'senior moment' :embarrassed:

I've attached a photo of the box, before you throw your hard earned at me, would you like me to measure it up for you?
Title: Re: Darnell sub hull
Post by: abreese on March 29, 2015, 06:23:04 pm: :-)) sorry for late reply,a fellow member at my boat club has had a look and I agree the boxes in the sub are a bit home brewed.
the dimensions are in old money 12ins long inboard end 5ins and stern4ins looks like I will have to have a go at the same?.
regards alan b
Title: Re: Darnell sub hull
Post by: Subculture on March 29, 2015, 07:45:07 pm: Make a cylindrical pressure hull, much more dependable in the long run.
Title: Re: Darnell sub hull
Post by: abreese on March 30, 2015, 08:49:23 am: {:-{ evicting the hamster soon!.
thanks for your time ab
Title: Re: Darnell sub hull
Post by: Martin (Admin) on March 30, 2015, 09:31:31 am: Quote from: Subculture on March 29, 2015, 07:45:07 pm
Make a cylindrical pressure hull, much more dependable in the long run.

Yep, a bit more work but worth it in the end. :-))
Title: Re: Darnell sub hull
Post by: Davy1 on March 31, 2015, 12:31:04 pm: I would agree with Andy and Martin - go for a cylinder.

If you must stick with the original Darnell boxes and you are going to Bourneville or Norwich I could let you have one or two for free.

Otherwise have a look at the build log I did on the AMS forum on the Darnell Type XXI. I did try to use the original internals, but really, things have moved on. A cylinder was so much easier.

David
Title: Re: Darnell sub hull
Post by: abreese on March 31, 2015, 01:11:59 pm: :-))I would pay for the boxes plus postage,not at the two venues.
regards ab
Title: Re: Darnell sub hull
Post by: Davy1 on March 31, 2015, 04:33:47 pm: Well I think we have given all the "health warnings" necessary! :-)

You can still have them for free if you would like to pick them up (I live near Kendal. pm me etc.)

Do read my thread on the AMS Forum before you finally decide. I started out with the intention of re-creating the Darnell original but leaking old steam engines and flat hatches were just too much for me!

David
Title: Re: Darnell sub hull
Post by: abreese on March 31, 2015, 06:48:19 pm: thanks david will send pm asap
Title: Re: Darnell sub hull
Post by: U-33 on March 31, 2015, 06:48:55 pm: Cylinders may be ok for some people, but in my opinion, you can't beat a decent radio box with a flat hatch lid.

You have to disconnect prop shafts, control surface linkages, etc to do any maintenance on a cylinder system...with a box, all you need do is undo a few nuts, pop the lid off, and everything is exposed to you...no disconnecting of anything. So much easier...
Title: Re: Darnell sub hull
Post by: Subculture on March 31, 2015, 07:15:37 pm: That all depends on the way you design it. If you split the boat hull radially in one or two sections, and leave the cylinder pipe in situ and have a tech rack that slides out, there's no need to disconnect a thing and you will have better access than a box, as you can get in from all sides.
Title: Re: Darnell sub hull
Post by: hollowhornbear on April 01, 2015, 12:01:37 pm: What's this then? Rich. :}
Title: Re: Darnell sub hull
Post by: U-33 on April 01, 2015, 12:15:33 pm: Case of having to, Kev...it's going into my Seawolf. The hull shape doesn't suit a box, more's the pity.
Title: Re: Darnell sub hull
Post by: TomHugill on April 01, 2015, 01:49:01 pm: Quote from: U-33 on March 31, 2015, 06:48:55 pm
Cylinders may be ok for some people, but in my opinion, you can't beat a decent radio box with a flat hatch lid.

You have to disconnect prop shafts, control surface linkages, etc to do any maintenance on a cylinder system...with a box, all you need do is undo a few nuts, pop the lid off, and everything is exposed to you...no disconnecting of anything. So much easier...

My Tuphoon disagrees profusely with you! I yearn for the access a cylinder provides!
Title: Re: Darnell sub hull
Post by: U-33 on April 01, 2015, 04:30:49 pm: I've tried and tried to master the intricacies of the cylinder..Andy has tried to convert me, so has Ron, but although this one seems to be ok, I'm a fan of a decent box with nice big flat clear access hatch cover.

The Seawolf has got large square cut outs in the hull bottom, so I couldn't really build a box into it...shame, but there it is. I just find the idea of putting square stuff into a round tube is wrong...that's what you get for being an old fart, I guess.
Title: Re: Darnell sub hull
Post by: Davy1 on April 02, 2015, 02:30:01 pm: Hi Abreese,

Good to see you this morning and hope you find the Darnell bits and bobs useful. Many thanks for your kind donation to the RNLI.

Wonderful thing Model Boat Mayhem and the Internet!

David
Title: Re: Darnell sub hull
Post by: abreese on April 02, 2015, 04:33:28 pm: :-)) thanks for the bits and bobs,also donation to RNLI.
all the best alan b