The posting by Scott and the replies has prompted me to show my personal interest in NBR 6-wheelers.
I have developed a range of NBR carriages in 4mm which are at various stages of readiness for release.
I was holding back making any formal announcements having learnt my lesson with the NBR goods Brake vans and the 4-4-0 chassis for the GEM Scott and Glen which have taken far longer than expected.
(I received the test run of the white-metal castings for the Goods Brake Vans at the end of February and should have the kits ready April 2015)
A summary of the carriages and their status is below:
9300 NBR(1908) Dia.19: NBR(1921) Dia.20: LNER SSA Dia.18B: 6-compt 3rd (1880-99) 7'6" width - Photo-tool done and test built
9301 NBR(1908) Dia.18: NBR(1921) Dia.19: LNER SSA Dia.17B: 6-compt 3rd (1888-1901) 8'0" width - Photo-tool done and test built
9302 NBR(1908) Dia.17: NBR(1921) Dia.18: LNER SSA Dia.16B: 5-compt 1st (1877-99) 7'6" width - Photo-tool done and test built
9303 NBR(1908) Dia.16: NBR(1921) Dia.17: LNER SSA Dia.15B: 5-compt 1st (1882-99) 8'0" width - Photo-tool done and test built
9304 NBR(1908) Dia.53: NBR(1921) Dia.51: LNER SSA Dia.42B: 4-compt Brake 3rd (1875-90) - Photo-tool done and test built
9305 NBR(1908) Dia.54: NBR(1921) Dia.52: LNER SSA Dia.43B: Composite Lavatory (1882-99) - Photo-tool done but not yet test built
9306 NBR(1908) Dia.25: NBR(1921) Dia.26: LNER SSA Dia.24B: Passenger Brake Van (1875-90) - Artwork done but info on underframe reqd
9307 NBR(1908) Dia.14: NBR(1921) Dia.14: LNER SSA Dia. n/a: 4-comp luggage composite (1878) - Artwork done but info on underframe reqd
9308 NBR(1908) Dia.49: NBR(1921) Dia.48: LNER SSA Dia.39B: 4-compt Brake Composite (1883) - Photo-tool done and test built
9309 NBR(1908) Dia.55: NBR(1921) Dia.53: LNER SSA Dia.44B: Composite Lavatory (1887) - Photo-tool done and test built
I have also developed artwork for 4-wheel carriages of 8'0 width:
9311 NBR(1908) Dia.20: NBR(1921) Dia.21: LNER SSA Dia.19B: 4-compt 1st (1882-93) 8'0" width - Test model built and proven
9310 NBR(1908) Dia.22: NBR(1921) Dia.23: LNER SSA Dia.21B: 5-compt 3rd (1882-93) 8'0" width - Test model built and proven
If I was just providing etches, then they could have been available in 2013 but I wish to provide them as complete kits less the usual wheel/couplings/paint etc.
Just as with my goods brake vans, it is the white-metal castings that takes time, being dependent on other people. Still to do are the gas lamps, emergency alarm and gas control box. Not too happy with the axleboxes as they require considerable adjustment by the modeller to fit.
Resin seats have been made by me for both classes.
It had been my hope that the Brassmasters Cleminson chassis would have been suitable but I discovered that it took up too much room on the underframe for any details to be added so one had to be drawn up that would suit the model.(Cleminson principle although not prototypical for NBR allows sufficient movement for pointwork and curves)
The prototype carriages used 4'0" Mansell wheels while 3'6" are the largest size available in 4mm.
Correspondence with Alan Gibson has proven that the S-scale centre can be used with a 16mm diameter tyre (on a 4mm axle) to give the required 4'0"
This means however that you have to allow for cut-outs in the floor for clearance, just as the prototype did!
As mentioned by Scott in his earlier post, I have resized some of the drawings to S-Scale and have been asked if I would consider doing so to 7mm. This remains a possibility (especially as I bought my first 7mm kits last year!) but it is not as straightforward as resizing the original drawing. Slots & tabs, holes and others have to be adjusted to suit the difference in metal thickness and details that worked in one scale may not in the other.
My 7mm developments all depends how patient you are, I am not so much a cottage industry as a spare room industry and have my full time employment and a new house to work on.......
Will try and post images later of the carriages built so far.
Brgds
Ian