00 Scale LNWR Crampton Scratch Aid

Description

This is a 00 Scale model of the LNWR Crampton locomotive ‘Liverpool’ – in her day claimed to be the most powerful engine in the world.  Britain’s only 6-2-0, built in 1848 as an answer to record-breaking GWR broad gauge engines, she was exhibited at the famous 1851 ‘Great Exhibition’ (winning a medal) but owing to reported track damage was largely in storage at Camden until ‘rebuilt’ into a more standard 0-6-0 at Wolverton in 1859.  Nonetheless it was a notable step in locomotive development and the largest of the once-popular Crampton type of design. 
 
A scratch aid, these parts provide the primary parts for a fully working model.  While a tender chassis is to be developed by the builder (motorised or free-rolling), a slot-in unit is also provided to accept a rtr motor chassis as an easier solution.  Driving wheels, axle and eccentrics are included, plus inserts for the cylinders to hold the slide bars (0.5mm x 2mm nickel steel strip; advice on fitting can be found in the N Gauge video below).  In case commercially-produced driving wheels are preferred (scale 8ft such as Alan Gibson catalogue code 4896) spare add-on eccentric centres are also provided (maximum total width with these not to exceed 24mm). 
 
https://www.youtube.com/watch?v=-ov34bqOHYo
 
Necessary to Complete:

Leading wheels – 17.5mm diameter (including flange; without c.16.5mm as per the Alan Gibson catalogue eg their code 4849)

Nickel steel strip (0.5mm x 2mm) – for slide bars (22mm length)

Loco-tender coupling

Pins (for rod linkages; see video)

Styrene strip – to retain wheels

Screw-fit coupling (best to just glue/pin – mounting point included): Hornby Spares – Coupling Unit and Screws – A1X Terrier – Pack of 1  http://www.newmodellersshop.co.uk/hornby_spares_couplings.htm

For making your own tender chassis –

Wheels of 15mm diameter (including flange; without c.14mm as per the Alan Gibson catalogue eg their code 4843)

For slot-in chassis as provided –

Tenshodo aka Hanazono motor bogie, 24.5mm wheelbase, 10.5 diameter spoked wheels: http://motorbogies.com/index.php?main_page=product_info&cPath=1_22&products_id=240&zenid=altif4dnkrvi8rob03nulftj47

One wheelset 10.5 diameter (11.5mm including flange; as per the Alan Gibson catalogue eg their code 4832)

Styrene strip – to retain wheels
 
Optional additional details to scratchbuild (at the builder’s discretion):

Handrails and regulator rod (wire; locations pre-drilled)

Reverser lever (base pre-printed)

Reverser-eccentric connections (styrene strip)

Coal and crew
 
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