Tuesday, 22 May 2012

Time and distance

One of the difficulties model railways have is in dealing with time and distance.

Layouts that want an operational focus will have to come to terms with the fact that the scale distance between towns on the model railroad can in no way approximate the prototype. We already seek to compress towns and yards to fit within our defined model railroad space as best we can. Trying to actually compress real distance between towns is even more difficult due to limitations on model railroad space.

And when the distance between towns is relatively short on our model railroads, the amount of time a train takes between those towns is also relatively short.

For the most part we get by with using fast clocks. Fast clocks seek to reduce "real" time to model time so that we can have some useful timetable operation. It's no good using real time when the time it takes for your train to travel between Town A and Town B is ten seconds! By using a fast clock we can pretend that the train took ten minutes or forty minutes or whatever between towns.

The time factor, even with a fast clock, also faces the problem that it is often the case that as the head of the train arrives at Town B, its tail is just leaving Town A! While the distance between towns will depend on overall layout size, I have operated very large model railroads in the US where this is still a problem.

In essence, if we want to try and replicate time and distance on the model railroad based on the prototype, it is damned hard to do well. This leads to compromise and ingenious proxies (like the fast clock) to help us manage as best we can.

However, I am thinking of an alternative solution. I haven't calculated the exact times to use just yet, so please just stay with me at the conceptual level at this stage!

On my proposed US layout, one option for my layout plan is to have a key junction station as the starting point, a large station and yard in the middle of the layout footprint for interchange, and then continue along the branch to another junction station for the remainder (including modelling a couple of the intermediate towns here).

In this scenario, the first "half" of the layout will be the first station and the middle station with no modelled towns/yards in between. I am therefore skipping 2 intermediate towns from the prototype because I don't have the space and they aren't operationally interesting enough to warrant inclusion on this part of the layout. What this means is that I would have two stations close to each other on the layout but on the prototype they are actually 60 miles (97km) apart. Using a fast clock in this scenario won't really work.

There is a peninsula between the two towns and I want to enclose this curved section in a shadow box. It is not considered part of "the railway". It won't be scenicked and the top of the box will be used by the dispatcher for his paperwork. As such, this curved section on the model railway does not really exist! This section will also need to be long enough (and hidden) to hold a complete train so train length becomes an issue too.

My idea is to hold the train in this "hidden" section while I run a real time/scale time sequence that will represent the time and distance between the two major towns I am modelling on the layout, but representing the 60 real miles apart on the prototype.

The travel of my model train (distance and time) will be represented by four lights, each representing the four towns on this section of the prototype. The first light goes on when the train leaves the first modelled station and yard (the junction - Town A). The train enters the curved shadow box around the peninsula and stops, being now fully enclosed and not visible at either end. A second light now comes on and the first light goes out. The second light indicates that the train has "arrived" at the second (unmodelled) station. After (say) thirty real seconds, the second light goes off and a third light goes on, representing the next unmodelled town. After another thirty seconds, the third light goes out and the fourth light comes on to indicate that the train is now (under power) entering the fourth town which is the mid-town on the layout that is actually modelled. We have now used a proxy for the time and distance between two modelled towns, including the two unmodelled intermediate towns.

I appreciate the fact that we will have the train operator/s waiting for over a real 60 seconds to get his/her train from Town A to Town D. And most of this real time is actually just waiting for some lights to go on and off before moving the train into the next station and yard on the model railroad. I figure that if I had the space and had actually modelled those two small intermediate towns, then the real time factor of the train moving between Town A and Town D would be the same or more. So pretending to run the train through those unmodelled intermediate towns shouldn't be much of a strain.

By holding up the train off-stage between modelled stations (or in the space-time warp I would prefer to call it), I am using a proxy for the time and distance between two towns, some 60 real miles apart on the prototype.

Comments welcome....

Saturday, 17 March 2012

Australian HO broad gauge

At the Sandown Model Railway Exhibition last weekend in Melbourne, Bendigo Rail Models (distributed by Auscision) released the Victorian Railways flat top T class diesel locomotive in HO scale. The model is available in a range of prototype numbers and versions according to three different time periods - see info here.

The flat top T class had also been previously announced by Austrains. I imagine Austrains will release a statement to the market advising what their intentions are for their model; not necessarily in response to the new model from Bendigo, but because of some speculation already circling in news groups. Austrains had previously released models of the later versions of the T class (as had Powerline). The Victorian Railways T class is therefore a popular class of locomotive.

The T class, however, was predominantly a locomotive used on the broad gauge (5' 3") of the Victorian Railways. This list of VR T class diesels indicates that nearly all the T class diesels, certainly in the early years to the 1970s, were broad gauge locos.

Whilst my Australian model railway interests are largely NSW, I also have an interest in Victorian Railways and also the Commonwealth/South Australian railways. As such, the issue of track gauge always stands out. In Victoria, the broad gauge dominated for most of its history while in South Australia, all three conventional track gauges (3' 6", 4' 8 1/2" and 5' 3") were used. In NSW, the standard gauge (4' 8 1/2") was the norm. In HO scale, the 16.5mm gauge reflects the standard gauge track of the prototype.

But herein is a dilemma for Victorian modellers. As much of their railway was (and to a lesser extent remains today) on the broad gauge, what is to be done about the HO scale track gauge? The standard gauge track in HO scale (16.5mm) will be too narrow for modellers of the broad gauge prototype. The answer, to date, has been the production of broad gauge models with wheel spacings to sit on HO scale standard gauge track. This is the so-called scale track dilemma most notorious in British model railway circles where the OO scale (4mm) models are running around on HO scale (3.5mm to the foot) track.

In Britain, the compromise is readily excepted. A shift to HO scale from OO scale remains unlikely; certainly from the main model railway manufacturers servicing that market. From time to time the issue receives some emotional comment and correspondence in the British model railway press. There are many who are happy to stay with the 4mm scale motive power and rolling stock on HO scale track.

In Australia, the debate about broad gauge track has received less publicity which may also reflect less interest. On the other hand, Australian prototype modellers modelling narrow gauge (3' 6") in HO scale are quite aware of the scale-gauge issue and work accordingly using 12mm track (HOn3.5). Some modellers prefer to model the Australian narrow gauge railways in S scale (3/16" to the foot) using 16.5mm track (for example in Western Australia and in Queensland). Modellers of Australian broad gauge railways (mainly Victorian Railways) seem quite happy to ignore the scale-track gauge issue (and here I willingly admit to being one of them).

I therefore really have two questions to ask:

Firstly, is it necessary (desired?) to model the Victorian Railways broad gauge in HO scale using the wider scale track (18.37mm) instead of 16.5mm?

And, should manufacturers of model railway equipment for broad gauge prototypes like Victorian Railways ensure that a supply of accurately gauged locos and rolling stock are available for sale? Or, alternatively, produce models that at least can be be readily converted to the broader gauge than the usual 16.5mm gauge (using spacers is what I understand happens in the UK).

I am interested in what people think about this issue so please feel free to comment.

Monday, 2 January 2012

2012 - Happy New Year

Happy New Year to all our readers of Armchair Modeller Down Under.

I am looking forward to a productive 2012 for both my blogging and model railway layout construction. I also hope to visit a few exhibitions this year, as well as reporting more frequently on some of the more interesting articles in the model railway press.

And I will be looking for opportunities to start some discussion from time to time on some of the significant issues facing model railways and building model railway layouts.

I trust 2012 will be a good year for you as well.

Tuesday, 4 October 2011

Sydney Model Railway Exhibition 2011 Report

Another Sydney Model Railway Exhibition is over. The three day event will be on again next year - the 50th!

There was a good selection of layouts and plenty of commercial stands at the exhibition.  I did feel that there were less layouts than usual but this certainly increased the aisle spacing and made it easier to walk around than in previous years. And like previous years, the Saturday morning crawl to get into the exhibition was slow. Note to exhibition organisers: is it possible to have four ticket booths operating instead of two at the busy periods of the exhbition please?

While many of the layouts at the exhibition had been on the exhibition circuit quite a few times before (no, Brisbane Waters from the Epping Club missed out this year and was replaced by the more recent Brunswick Park layout). But there were  a couple of new arrivals. The layouts that most caught my eye included the following:

The NSW O scale (7mm) layout Arakoola was very well presented. It follows the familiar NSW branch line format popular in HO scale but this time double the scale size. There certainly is the impression of weight and power when you see these O scale trains in operation, at realistic speeds, on a nicely scenicked layout. The layout is 17 metres in length and operated by digital command contril (DCC).



A G scale layout, Shady Hollow, featured a logging and forestry scene. It was amazing how much detail could be accomplished in such a relatively small layout size for a G scale exhibit.


Barcoola from the Bayside Model Railway Club represents the junction of the Trans Australian Railway and the Central Australian Railway and featured Australian National locomotives and trains. The layout is long which allows for some very lengthy trains. The layout is operated by DCC.


On a much smaller layout was the compact but well detailed Broxburn Sidings. This OO scale (4mm) layout is a small shunting layout with a freelanced Australian theme (Quinton River). Interestingly, the locos and rollingstock use Alex Jackson couplers, popular among British model railway folk. Having come all the way from Queensland, Broxburn Sidings was a nice addition to the Sydney exhibition.


A new layout to the Sydney Exhibition was Mungo Scott's, based on the iconic flour mill on the Metropolitan Goods Line in Sydney. This layout was built over a fifteen month period by members of the Arncliffe Model Railway Society (formerly Sydney Model Railway Society).


Wallerawang from the Guildford Model Railway Group is a good solid exhibition layout. The station building and footbridge are standouts, but the rest of the layout is well modelled and presented as well. For more information, try http://www.gmrg.org.au/


Oddwalls is another NSW-based HO scale layout, having started the exhibition circuit earlier this year. I enjoyed looking at the layout when I first saw it, and I still enjoy the detail in the layout now. The layout also presents very well and is a good size for both setting up and for viewing.

The good-hearted chaps from the Illawarra Model Railway Association were there with their US-based layout Kelly River. Kelly River features an operating Bascule Bridge and gauntlet track. You can find more information about this layout at www.imra.org.au/kelly.html


Still one of my favourite exhibition layouts, and still going strong, was the HO scale layout, Dungog. Dungog is an actual town located about 80km north of Newcastle and is famous as the birthplace of NSW and Australian cricketer, Doug Walters. I must say I find myself looking on the layout for a chap or a kid with a cricket bat somewhere but have yet to see it. The layout uses photographs from the Dungog district which are very effective. At the left hand end of the layout (when viewed from the front) is Martin's Creek and the quarry, while at the opposite end is the butter factory. Dungog is very nicely composed layout with some great scenery, buildings, and bridges.


Another layout on show that I liked, but unfortunately the photos were not of sufficient quality to produce here, was the HO scale Tasmanian Railways Avoca. Having a layout based on Tasmanian Railways (the Fingal Valley) was something different to see and something to be encouraged for the future.

And for the kids, there was the popular Lego layout, Brickston Valley.


The exhibition was certainly well attended on the Saturday. I enjoyed my time there looking at layouts, checking out some of the commercial outlets, and chatting to various modellers throughout the day. I trust the exhibition organisers were happy with the three day show.

Thursday, 29 September 2011

Sydney Model Railway Exhibition 2011

The 49th Sydney Model Railway Exhibition will be held this coming October long weekend at the Whitlam Leisure Centre, Memorial Avenue, Liverpool. The exhibition is organised by the Australian Model Railway Association (AMRA). Information about the exhibition is available from the AMRA website.

The exhibition opening times are as follows:
Saturday 1st October 9am-5pm
Sunday 2nd October 9am-5pm
Monday 3rd October 9am-4pm

The exhibition will feature in excess of 80 stands including layouts, traders, and rail heritage organisations. Check out the exhibition floor plan to see who will be where at the exhibition over the weekend.

I will be coming up to the exhibition on Saturday. I hope to see some of you there.

Tuesday, 27 September 2011

Modelling the Railways of South Australia Convention report

I am finally getting around to reporting on the Modelling the Railways of South Australia Convention held in Adelaide a couple of weeks ago.

The Convention was up to the usual high standard. This year I thought the presentations were all exceptionally interesting. The presentations covered the following:

The R and Rx class of locomotives of the SAR
Motor body transport by rail in South Australia
The Penfield Branch Line
Working Mile End Yard in the 1970s
Bringing your own sound to the layout
Shared VR & SAR wagon design
Rob Burford's "Pirie" layout, emotionally described by Rodney Barrington

For those who don't know, Rob Burford died in October last year. His layout as described by Rodney certainly was the highlight of an exceptionally interesting day out.

While the prototype featured strongly this year, I find this information very fascinating; especially to someone like me more familiar with the railways of New South Wales and Victoria. There is always plenty to think about during the presentations on prototype practice.

The Convention notes were again superbly produced. The notes form the backbone (and much of the skeleton) of my knowledge about the South Australian and Commonwealth Railways.

The Convention also hosted a number of commercial outlets, including End of the Line Hobbies, Orient Express, OzRail Model Trains and Powerline. And speaking of Powerline, I have two Powerline 830 class mustard pot SAR locos for sale at $120 each if anyone is intersted. They are both in original boxes with original couplers. Test run only.

The model display area again showcased some superb modelling.

The first photo is an HO scale model railway station based on Mt Lofty near Adelaide. The model was made by Nick and Peter Michalak using a combination of materials including card, balsa, and styrene.


The next photo shows an ALX car carrier built from a Strath Hobbies kit (HO scale) by Paul Collins.


The third photo shows a beautiful model of a cement hopper built by Matthew Collins from a Strath Hobbies kit (HO scale). I really liked the look of this particular model.


 Finally, I again enjoyed catching up with friends and fellow modellers at the Convention. It was a great day, especially as part of a few days away to also enjoy the Barossa Valley and Clare Valley as well. Thoroughly recommended all round!

Thursday, 8 September 2011

Modelling the Railways of South Australia Convention 2011

I am busily packing late this evening for my trip to Adelaide. I fly out tomorrow morning. I will be attending the Modelling the Railways of South Australia Convention on Saturday. The Convention is on again at the Flinders Medical Centre; as it has been for the last few years now.

The Convention always has a good selection of model and prototype topics. The Convention notes are superb and form the backbone of my modelling information on the South Australian Railways and Commonwealth Railways.

I also hope to find some time to visit the National Railway Museum at Port Adelaide on Sunday. I love the industry and history around Port Adelaide so I must remember to take my camera!

I look forward to catching up with friends and modellers from South Australia at the Convention on Saturday. See you there!