[modeleng] Re: 0-4-0 Hunslet drawings (Milner)
- From: "R.L. Roebuck" <rlr20@xxxxxxxxxxxxxxxx>
- To: modeleng@xxxxxxxxxxxxx
- Date: Sun, 26 Jul 2009 00:57:59 +0100 (BST)
On Fri, 24 Jul 2009, Craig Gluyas wrote:
> Hi Rich,
> The Milner hunslet is the longer version, scaling to a 4' wheelbase (16"
> on 7¼). It works out about 48" long.
Hi there Craig,
Thanks for your message.
I'm somewhat confused though.
According to this page...
http://www.stationroadsteam.co.uk/stock%20pages/3455/index.htm
...the Milner Hunslet being talked about is "Alice" class, which according
to the book I have here was the smaller 3 foot 3" whwwelbase in real life.
Also according to this page...
https://vault1.secured-url.com/reeves2000/shop_item.asp?sub_cat_id6&page=4
...the Milner design is offered with a standard "Holy War" cast nameplate
- with "Holy War" definitely being an "Alice" class hunslet in real life
(Hunslet works number 779, built in 1902).
Do the Milner drawings offer variants on wheelbase, and other details
perhaps?
Scaling from the Station Road Steam pictures, the wheelbase looks an awful
lot nearer to 13 inches than 16 inches though the perspective could be
affecting my judgment (also overall length should be (13+(10/12))*4U.3",
whereas 48" only corresponds to 12 foot in full size, almost 2 foot too
short).
Also all the Milner Hunslets I've seen seem to have a proportion of the
cyliner casting protruding above the running boards, which is a trait of
the Alice and several other classes (Dinorwic Port class, Penrhyn Small
Quarry class), but not the Penrhyn Port class or the Penrhyn Large Quarry
class.
Compare Milner Hunslet...
http://www.stationroadsteam.co.uk/stock%20pages/3455/pages/3455-f.htm
...to Penrhyn Port Class Hunslet...
http://www.quarryhunslet.mste.co.uk/public/Gwynedd.php
What do you reckon - am I missing something?
Yours,
Rich.
>
> Regards
>
> Craig
>
>> Hi there Peter,
>>
>> Thanks for the offer. I wonder though whether this slightly highlights my
>> problem.
>>
>> The loco you refer to at Bredgar is...
>>
>> http://www.bwlr.co.uk/locos.php?flag=lj
>>
>> ...which is the Dinorowic version of the Port class, which has something
>> like a 3 foot 3" wheelbase in real life.
>>
>> Whereas the Penrhyn Port class was a different beast, with a 4 foot
>> wheelbase and a dropped footplate, not to mention lower corners of the
>> buffer beam rounded off with a very large radii, see...
>>
>> http://www.quarryhunslet.mste.co.uk/public/Winifred.php
>>
>> (though one shouldn't attribute too much to the lack of a cab as they were
>> semi-easily-detachable.)
>>
>> I may be wrong here, but I think the Port designation refers to the wheel
>> diameter and cylinder sizing, relating to tractive effort, not to a
>> particular design. In the same way that Estate cars tend to be more
>> powerful that a Sub-sub-compact (to use the American designation).
>>
>> I don't suppose the Milner drawings cater for this longer version?
>>
>> Yours,
>>
>>
>> Rich.
>>
>> On Thu, 23 Jul 2009, peter wrote:
>>
>>> Rich,
>>>
>>> Happy to. I am building a Port class Hunslet in 7.25" (1/3 scale). The
>>> frames are laid and the boiler complete. I have a complete set of
>>> drawings, they are by Roger Marsh. I live in Trowbridge and happy to
>>> entertain visitors.
>>>
>>> There is a Port Class at the Bredgar and Wormshill Railway, I was made
>>> to
>>> feel very welcome and allowed to crawl all over and under to take
>>> pictures
>>> and measurements.
>>>
>>> I would give more details, but I am over 3000 miles away from my
>>> drawings
>>> in Beijing although I fly back today (its 06:55 here).
>>>
>>> e-mail me on peter AT puffernutter DOT co DOT uk and we'll see the best
>>> way
>>> of communicating.
>>>
>>> Cheers
>>>
>>> Peter
>>>
>>> On Thu, 23 Jul 2009 18:27:11 +0100 (BST), "R.L. Roebuck"
>>> <rlr20@xxxxxxxxxxxxxxxx> wrote:
>>>> Hi there All,
>>>>
>>>> I've a few observations and questions which I thought I'd throw out
>>>> there
>>>
>>>> to the group incase they drummed up any interesting conversation.
>>>>
>>>> 1) Whilst surfing the interweb last evening, I came across the
>>>> following
>>>> site detailing the construction of a Lynton and Barnstaple 2-6-2 in
>>>> 7.25" gauge...
>>>>
>>>> http://www.mizensrailway.co.uk/Images/Loco/Locos/Davids%20Loco.htm
>>>>
>>>> ...this looks like quite an impressive beast, but I was a bit taken
>>>> aback
>>>
>>>> by the frame thickness of 20mm. Is this kind of thing the norm for
>>>> Milner
>>>
>>>> locomotive designs?
>>>>
>>>> 2) The thing I was actually looking for was drawings for some of the 4
>>>> foot wheelbase Hunslet quarry locomotives formerly of North Wales. I've
>>>> got hold of the book which is the respected source on the subject as
>>>> talked about by this page...
>>>>
>>>> http://www.quarryhunslet.mste.co.uk/public/intro.php
>>>>
>>>> ...but only the drawings smaller and larger hunslets are detailed in
>>>> the
>>>> book, whereas the drawings for all but the smallest of the Penrhyn
>>>> locomotives are missing. Does anyone have any ideas where drawings can
>>>> be
>>>
>>>> obtained from for the Penrhyn 'Large Quarry' and/or the Penrhyn 'Port'
>>>> class hunslets? Ie...
>>>>
>>>> http://www.quarryhunslet.mste.co.uk/public/Bill_Harvey.php
>>>> http://www.quarryhunslet.mste.co.uk/public/Winifred.php
>>>>
>>>> ...to me they just have the edge over the other variants which seem to
>>>> be more commonly modelled.
>>>>
>>>> 3) In looking through a book detailing full size boiler construction,
>>>> it
>>>> looks like it was common place to construct a subassembly of inner and
>>>> outer firebox all on one piece with backhead the throatplate fitted.
>>>> Then
>>>
>>>> as the final stages of assembly the boiler barrel, front tubeplate and
>>>> tubes would be added. Why do we not do this in miniature? Am I missing
>>>> something here - as we end up having a much larger mass of copper hot
>>>> for
>>>
>>>> the fitting of all the stays, all the backhead bushes, foudation ring
>>> etc,
>>>> whereas with the full size method they keep the size of the 'beast'
>>>> down
>>>> for all the fiddly bits, right up till the end of the job?
>>>>
>>>> Anyway, is there's anyone out there who fancies a bit of a chat on any
>>>> of
>>>
>>>> the above subjects?
>>>>
>>>>
>>>> Yours,
>>>>
>>>>
>>>> Rich.
>>>> MODEL ENGINEERING DISCUSSION LIST.
>>>>
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>>>
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