7/8ths scale on 16.5mm gauge

Minimum gauge modelling in other scales.

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kevo
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Re: 7/8ths on o16.5

Postby kevo » Sat Jun 17, 2017 7:26 am

thanks peter . it may look more in proprortion when I put a coat of primer on . I made the bonet out of one of those plastic small draws you get in storage boxes like for keep ing screws etc . yes the front view dus make the over hang look big . I have noticed that some people place much wider sleepers under the track to balance it out more .cheers kevin
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chris stockdale
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Re: 7/8ths on o16.5

Postby chris stockdale » Sat Jun 17, 2017 8:49 am

Out in the 'real world' (much overrated IMHO) we are pushing the width/gauge boundaries on 7 1/4" gauge track. I think Kevo's locos fall within the bounds of realism.

There are now some locos and stock that are right on the 4 x gauge 'limit' that is generally suggested as the maximum ratio for stability, i.e. in the region of 27 - 28" width.

Those of a 'Minimal' persuasion (i.e. smaller gauge than Heywood's 'minimum' of 15", but still nominally 12" to the foot as opposed to a miniature of something else - as ever, see my Facebook group in my signature for more) can some see some of this stuff next weekend, Saturday 24 June, as we're having a Gathering. I'll start a separate thread in Blether in a moment with some details.

Meantimes here's a photo of three locos, two minimal with the armoured Simple a miniature. All on 7 1/4" yet very different. Makes you think, doesn't it?

Cheers,
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mad gerald
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Re: 7/8ths on o16.5

Postby mad gerald » Sat Jun 17, 2017 9:09 am

chris stockdale wrote:Makes you think, doesn't it?

... definitely absolutely :!: ... thanks for the additional input - very much appreciated!!!

Cheers

PS: Visited your FB site already these days

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Re: 7/8ths on o16.5

Postby kevo » Sat Jun 17, 2017 10:26 am

that makes excellent reference photo chris thank you .
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chris stockdale
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Re: 7/8ths on o16.5

Postby chris stockdale » Sat Jun 17, 2017 10:45 am

Another photo to contrast the size of a miniature loco to that of a Ruston styled Minimal one. Gauge is again 7 1/4". Indeed, apart the likes of Rudyard Lake railway and a handful of other similare concerns I'd suggest that at least 90% of minimal stuff runs on 7 1/4".
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chris stockdale
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Re: 7/8ths on o16.5

Postby chris stockdale » Sat Jun 17, 2017 11:01 am

More?

OK, just a couple.

First Stumpy, about 4' x 2', i.e. about 2/3 the size of a genuine Lister, with Scamp looking pretty small (they are!) beside it.

Then Aneirin, a genuine single Fairlie next to Taliesin at the Quirks and Curiosities weekend a few weeks back on the Ffestiniog.

For a 7 1/4" loco Aneirin is BIG

Length..................... 8ft 9in
Width (max)............. 28 inches
Height from rail........ 50 inches
Driving wheel diameter 8½ inches
Cylinder Bore........... 3½ inches
Stroke...................... 4¼ inches
Boiler diameter........ 12¾ inches
Grate area............... 91 sq. inches
Gauge..................... 7¼ inch

Cheers,
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mad gerald
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Re: 7/8ths on o16.5

Postby mad gerald » Sat Jun 17, 2017 11:11 am

... but they all have a low center of gravity in common, which IMHO is helpful/necessary to prevent them from tipping over ... do you eventually have another example, showing a loco with a higher frame ... or the drivers seat not mounted on the floor (apart from Listers) ... perhaps considering 10 1/4" gauge as well ...?

@Kevo
Sorry for extending you thread :oops:

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Re: 7/8ths on o16.5

Postby kevo » Sat Jun 17, 2017 11:22 am

chris the pic of the ruston & especial the two listers are just the sort of reference I need . its incredible the size difference of the listers on the same gauge track
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Re: 7/8ths on o16.5

Postby kevo » Sat Jun 17, 2017 11:27 am

not at all Gerald keep it flowing :) did you make any more progress past the card mock up on your micro layout ? I do like it .
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Re: 7/8ths on o16.5

Postby chris stockdale » Sat Jun 17, 2017 11:29 am

Hi Gerald,

Are you meaning the likes of Arun, a new(ish) 10 1/4" gauge loco on the South Downs Light Railway? Arun was built by the Exmoor folk - the Stirland family - who normally build steamers in gauges from 7 1/4" to 15".

And yes, apologies to Kevo, but I'm dropping this stuff in hoping that it helps give some real life examples of the considerable variety in size and shape available to inspire and excite!

Cheers,
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chris stockdale
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Re: 7/8ths on o16.5

Postby chris stockdale » Sat Jun 17, 2017 11:38 am

Still with 10 1/4" take a look at the wide variety of motive power on the Rudyard Lake Steam Railway.

http://www.rlsr.org/about-the-railway/locomotives.html

Cheers,

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Re: 7/8ths on o16.5

Postby kevo » Sat Jun 17, 2017 12:03 pm

it was this one gerald
03-0028-micro-layout-diorama-P1030490.jpg
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Re: 7/8ths on o16.5

Postby mad gerald » Sat Jun 17, 2017 5:41 pm

kevo wrote:.. did you make any more progress past the card mock up on your micro layout ? I do like it .


kevo wrote:it was this one gerald ...


Kevin,
I have not started the conversion yet, 'cause I had to fix some minor issues first: was i. e. not quite sure regarding the gauge (26,7 mm representing ~18" or 16,5 mm representing 10 1/4"), choice of rails, final arrangement of layout ... apart from bringing together all the necessary stuff ...

chris stockdale wrote:Are you meaning the likes of Arun, a new(ish) 10 1/4" gauge loco on the South Downs Light Railway? Arun was built by the Exmoor folk - the Stirland family - who normally build steamers in gauges from 7 1/4" to 15" .


Stockers,
I was thinking of nothing particular, but I'm glad to see that actually a lot more is possible running on 10 1/4" and 7 1/4" than I was expecting ... :shock: ... .. and now feel quite comfortable with my choice of gauge and my build ... 8)

Cheers
Last edited by mad gerald on Sat Jun 17, 2017 6:47 pm, edited 1 time in total.

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chris stockdale
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Re: 7/8ths on o16.5

Postby chris stockdale » Sat Jun 17, 2017 6:19 pm

Hi Gerald,

In truth I reckon that most 7 1/4" locos and stock are garden sized, or at the very most light industrial/agricultural; whereas going that bit larger to 10 1/4" allows for quite substantial gear. As ever though, it's what your imagination says is right. :D

Cheers,

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Re: 7/8ths on o16.5

Postby chris stockdale » Sat Jun 17, 2017 6:26 pm

Additional...

Another way of looking at the modelling opportunities in this sort of scale/gauge combo is to have a wander through the GNine section of the Gnatterbox gently muttering, 'double the scale, double the gauge (approximately) on that, hmm, yes, that would look good...' :wink:

That gives you 257 topics to play with at the last count. :D

Cheers,

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Re: 7/8ths scale on 16.5mm gauge

Postby Jon Randall » Sun Jun 18, 2017 4:37 pm

I've had a dabble in 1/12th on 16.5mm too. I call it Wn7.5 as I figure if H is used for "Half inch to the foot" then W is "Whole inch to the foot".
The last picture is odd but the post was "muppetised" by a previous over-zealous admin.

viewtopic.php?f=11&t=5340&p=68125&hilit=1%2F12th#p68125
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Re: 7/8ths scale on 16.5mm gauge

Postby kevo » Sun Jun 18, 2017 10:15 pm

hi jon your 1/12 lister looks really good did you go on to build your park farm layout :?:
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Re: 7/8ths scale on 16.5mm gauge

Postby Jon Randall » Mon Jun 19, 2017 12:30 am

It's on the list :roll:
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Re: 7/8ths scale on 16.5mm gauge

Postby kevo » Mon Jun 19, 2017 8:19 am

yes I now what you mean :roll:
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Re: 7/8ths scale on 16.5mm gauge

Postby kevo » Mon Jun 19, 2017 8:24 am

just wanted to ask dus any one know where I might get get some ruston type buffer blocks in 16mm . I have been looking so far no luck . :) cheers kevin
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Re: 7/8ths scale on 16.5mm gauge

Postby kevo » Tue Jun 20, 2017 4:30 pm

soz should have said dus any one know who makes coupler blocks in 16 mm sm32 :oops:
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Re: 7/8ths scale on 16.5mm gauge

Postby chris stockdale » Tue Jun 20, 2017 4:40 pm

Kevo,

You might like to take a look at Modelearth

http://modelearth.net/couplers%20and%20 ... 016mm.html

or Brandbright

http://www.brandbright.co.uk/index.php?cPath=33

Cheers,

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Re: 7/8ths scale on 16.5mm gauge

Postby KEG » Tue Jun 20, 2017 4:42 pm

...or OZARK >Miniatures: http://www.modell-werkstatt.de/lokomotivteile?pagenumber=2

Have Fun

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Re: 7/8ths scale on 16.5mm gauge

Postby kevo » Tue Jun 20, 2017 6:50 pm

big thanks for those links chaps . that has found me what ime looking for :D
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