Gauge 3 Kingscale Britannia
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Rhinochugger
Retired Oik
Luverly 
Yes, it's beautiful but it goes together with words like "hernia".WANT!
There has been some recent correspondance in the G1 NL and J about the varying aspects of Gauge One in terms of scale and fidelity to gauge and size accuracy. There is even the possibility of a set of S1 Standards being proposed for those that wish to plough a very lonely farrow. I just wonder how close the Gauge 3 Models are in terms of Track Gauge in relation to 4'81/2" or whatever it is now. Whatever the brit looks superb.
In the past when boiler testing for the 16mm society I got my hands on a Gauge 3 9F and can say that when we did the blow off test it was truly an awsome beast to be a foot from.
JonD
In the past when boiler testing for the 16mm society I got my hands on a Gauge 3 9F and can say that when we did the blow off test it was truly an awsome beast to be a foot from.
JonD
Rhinochugger
Retired Oik
Gauge is 64mm if I remember from Mel Turbutt's line 
That is true but only part of the story. Not sure my math is up to converting 1:22.5 scale 64mm to Standard Gauge to see what it should be. Some clever soul must surely be able to do that?Gauge is 64mm if I remember from Mel Turbutt's line
JonD
Neil Robinson
Registered
I'm not clever but, in a previous life, I covered for maths teachers on many occasions.
Standard gauge, 4’8.5” = 56.5”
56.5” x 25.4 = 1435.1mm
1435.1 / 22.5 = 63.782222(recurring)
So standard gauge at 1:22.5 scale is a gnats under 64mm.
Standard gauge, 4’8.5” = 56.5”
56.5” x 25.4 = 1435.1mm
1435.1 / 22.5 = 63.782222(recurring)
So standard gauge at 1:22.5 scale is a gnats under 64mm.
Rhinochugger
Retired Oik
I believe you.
JonD
Gavin Sowry
Garden Railroader and Raconteur
Gauge 3, I believe, is/was 2½" gauge back in the days of pounds shillings and pence. In pre Brexit terms, that is 63.5mm.
Gavin Sowry
Garden Railroader and Raconteur
Just checked the Gauge 3 Society page, my summations are correct. Deep dim history gave the scale as ½" to the foot. Understandable, given the penchant for incorrect scale/gauge ratios that have emanated from the land that gave us railways n the first place.
45 years ago, I was very heavily involved in the metrication of our rail system here in NZ. One of the more practical steps taken was a decree for 'rounding off' certain conversions to avoid too many decimal points in the resultant figures. Easiest one, was train tonnages, one ton became one tonne in the loco hauling tables (rather than 1.016)...... hauled tonnages were largely guesswork (but reasonably accurate) in any case. One chain, that universal measure of cricket pitches and railway curves, simply became 20 metres (true figure 20.1168m). On the other hand, milepegs were not converted....we whacked in new zero pegs wherever it was determined a new line started........ and away we measured, and measured, and measured until we got to the end of the line, picking up 'new' metrages of all features along the way, and placing new pegs.
Shortly after, a well know local railway atlas just metricated all their old data and republished, ending up with virtually all the station metrages being wrong, because, in part they hadn't used, or known of the new zero pegs, and hadn't eliminated the short and long miles that had been eradicated by the remeasure. Even now, I hear 'railfans (experts in their own eyes)' claiming kudos by pointing out 'mistakes', such as the tags on our wooden traction poles...... they still have old and new on them if they were around in 1974...... little realizing that the zero had been moved by 5 chains or so in the remeasure (you ain't going to remeasure track that hadn't been there for over 35 years at the time.
TLR
anything to do with model L/S loco's boats etc
Still in use and now looked after by the National 2 1/2" Gauge Association which is more for model engineers for passenger hauling as opposed to the Gauge 3 society who model standard gauge railways in the garden.
Shaun