ArdsleyTank Posted February 11, 2015 Share Posted February 11, 2015 Hi, I'm new here, and I'm not sure if this is where I should be asking this. But, I was wondering if somebody could help me out. I'm scratchbuilding a 4mm model of Brunel's North Star and/or Iron Duke/Rover class, and I have not been able to locate their boiler diameters anywhere. If someone could point me to some drawings, that would be helpful too. If someone has a Keyser model of either and they could measure the boiler diameter, I can scale it up to real life proportions. I really do appreciate your help in helping me modelling these beasts. Thanks again, ArdsleyTank Link to post Share on other sites More sharing options...
asmay2002 Posted February 11, 2015 Share Posted February 11, 2015 Hi, I'm new here, and I'm not sure if this is where I should be asking this. But, I was wondering if somebody could help me out. I'm scratchbuilding a 4mm model of Brunel's North Star and/or Iron Duke/Rover class, and I have not been able to locate their boiler diameters anywhere. If someone could point me to some drawings, that would be helpful too. If someone has a Keyser model of either and they could measure the boiler diameter, I can scale it up to real life proportions. I really do appreciate your help in helping me modelling these beasts. Thanks again, ArdsleyTank A book to look for with loads of reproduced Broad gauge loco drawings was published by Oakwood press. See here Link to post Share on other sites More sharing options...
ArdsleyTank Posted February 11, 2015 Author Share Posted February 11, 2015 A book to look for with loads of reproduced Broad gauge loco drawings was published by Oakwood press. See here Ooh, thanks! Link to post Share on other sites More sharing options...
buffalo Posted February 11, 2015 Share Posted February 11, 2015 Brunel had little directly to do with North Star, it was built by Robert Stephenson & Co and delivered in the early months of Gooch's career as Locomotive Superintendant. The official dimensions of the boiler were 8'6" x 4'0", though these are most probably the actual boiler dimensions excluding cladding. From the drawing in Russell's A Pictorial History of Great Western Engines, vol 1, the overall diameter appears to be about 4'3". The Iron Dukes were built from 1847 to 1855. Their boiler dimensions were 11'0" x 4'93/4", this time the diameter is that of the outer cladding rings. The Rovers were 'renewals' of the Iron Dukes, effectively new engines, built between 1871 and 1888. Here the story is more complex as boiler sizes varied. 1871 and 1873 builds: 10'9" x 4'9" 1876 builds: 10'9" x 4' 6" 1878 and 1880 builds: 11' x 4'6" 1888 builds: 11' x 4'9" and 4'10" Dimensions from Locomotives of the Great Western Railway, Part two, Broad Gauge, RCTS. Nick Link to post Share on other sites More sharing options...
ArdsleyTank Posted February 11, 2015 Author Share Posted February 11, 2015 Brunel had little directly to do with North Star, it was built by Robert Stephenson & Co and delivered in the early months of Gooch's career as Locomotive Superintendant. The official dimensions of the boiler were 8'6" x 4'0", though these are most probably the actual boiler dimensions excluding cladding. From the drawing in Russell's A Pictorial History of Great Western Engines, vol 1, the overall diameter appears to be about 4'3". The Iron Dukes were built from 1847 to 1855. Their boiler dimensions were 11'0" x 4'93/4", this time the diameter is that of the outer cladding rings. The Rovers were 'renewals' of the Iron Dukes, effectively new engines, built between 1871 and 1888. Here the story is more complex as boiler sizes varied. 1871 and 1873 builds: 10'9" x 4'9" 1876 builds: 10'9" x 4' 6" 1878 and 1880 builds: 11' x 4'6" 1888 builds: 11' x 4'9" and 4'10" Dimensions from Locomotives of the Great Western Railway, Part two, Broad Gauge, RCTS. Nick Thank you, sir! This is exactly the information I was looking for. Link to post Share on other sites More sharing options...
cobach47 Posted March 11, 2015 Share Posted March 11, 2015 hope this helps jim russells drawings having measured the 6ft wheelbase on the drawing which is 1 1/4 inches equates to 72 inches which is 6 ft if my calculations are correct that makes the drawing scale 1/57.6 therefore boiler diameter ( outside cladding ) is 4.2 feet if you print off the drawing check the distance between leading wheels and driving wheels it should be 1 1/4 inches if it is not let me know so i can supply the correct scale good luck - Ian Link to post Share on other sites More sharing options...
ArdsleyTank Posted March 19, 2015 Author Share Posted March 19, 2015 hope this helps jim russells drawingsscan0001.jpg having measured the 6ft wheelbase on the drawing which is 1 1/4 inches equates to 72 inches which is 6 ft if my calculations are correct that makes the drawing scale 1/57.6 therefore boiler diameter ( outside cladding ) is 4.2 feet if you print off the drawing check the distance between leading wheels and driving wheels it should be 1 1/4 inches if it is not let me know so i can supply the correct scale good luck - Ian Thanks, this is just what I need! Thanks again, ArdsleyTank Link to post Share on other sites More sharing options...
Canadian broad gauge Posted August 25, 2020 Share Posted August 25, 2020 Hi the railway travel and correspondence society published a book that list all broad gauge classes with these details. The more recent books for lococs from 1838 to 45 have measured drawings Link to post Share on other sites More sharing options...
Il Grifone Posted August 25, 2020 Share Posted August 25, 2020 (edited) Here is a sister engine of 'North Star' exported to Germany, but not Broad Gauge of course, There was a Fashion for flangeless drivers on these early locomotives. Probably necessitated by their rigid frames. There is also a Kinder (as in egg) small scale (TT? - I've never measured mine) model of Adler. It's surprisingly good considering its origins and includes the train. I have a second engine so I could convert it to North Star.... (Yet another project, but I did see the replica in Swindon Works a long time ago (1959?).) I see the Original Adler was scrapped, but nobody cared about old relics in those days. Edited August 25, 2020 by Il Grifone Link to post Share on other sites More sharing options...
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