Barrett Engineering logo
Manufactures of Gauge 1
Live Steam Locomotive Model kits
and accessories in 10mm scale

Director Mr S.Barrett     Company Reg No. 8391616

L.M.S ROYAL SCOT
LOCO SPECIFICATION

 Scale:-                  10mm to 1 foot

  Length :-               637mm (23.25”)

  Track radius:-        7’6”ft minimum

  Weight  Kg           (  10 -12   lb ) Approx

  Fuel :-                   Alcohol  (Methylated spirit) supplied by constant
                               level feed system.To ‘toast rack’ style wick burner.

  Boiler :-                Internally fired, multi flue, superheated, with safety valve.
                              Built from copper and bronze, silver soldered throughout.
                             Tested to 200psi  (13bar) Maximum safe working pressure 100psi (6.5bar)

 Controls:    loco:    Regulator, blower, low water level  test valve, pressure gauge.
               tender:    water pump bypass,  fuel valve.

 Cylinders:-            Two, 1/2” bore x 7/8” stroke ( 12.5mm x 22mm)

 Valvegear :-          Slip eccentric, slide valves

 Lubrication :-         Displacement (Rosco) type.

 Water feeds:-        Tender carries water in rear tank containing  hand pump.
                               Loco has axle pump driven from driving axle.

  General :-              Buffers and coupling hooks sprung.
                              Main loco axleboxes individually sprung.
                              Bogie axle boxes sprung.
Complete kit Spirit

£2,723

Complete kit Coal

                   £2,894

This kit can be paid for and delivered in
12 monthly instalments add £109 for postage

Production :-     August 2016

Deposit £209 spirit
          £218 coal                    
              

Technical details

Select Typical steam kit for a detailed view of what a typical kit contains.

Select technical detail to view a description of our steam kit design.

typical kit BACK.

      In the autumn of 1926 the North British Locomotive company was asked by the LMS to design a new 4-6-0 for express passenger work. This was undertaken under the auspices of Sir Henry Fowler. The following February an order was placed for a batch of 50 to be ready for the summer. The first on was delivered in July. Following some initial teething problems the remainder of the order started to arrive in the autumn of that year. Such was need and the confidence in the design, no prototype was built. It appeared with the standard 3500 gal Fowler tender. A tragic accident at Leighton Buzzard in 1931 was thought to have been caused by restricted vision due to smoke and steam ‘clinging ‘ to the boiler. After trials to overcome the problem, smoke deflectors were introduced. Stanier’s arrival as CME saw further changes. The first was to the main axleboxes where his version, based on Swindon practice, reduced hot boxes from 80 to 7 per year. In 1936 some locos were fitted with his new high sided 4000 gallon tender, designed for the Jubilees. Following the unsuccessful high pressure experiments, Fury was rebuilt with the new 2A boiler in 1935. Fury was renamed British Legion. After a period of development the tapered boiler and double chimney was shown to bring considerable advantages to the performance and economy. A programme of rebuilding with the 2A boiler started in 1943. The last conversion was completed in 1955. Withdrawal started in 1962 and finished in 1965.


THE MODEL

     These kits are for the original large boilered version. They can be built with or without the smoke deflectors. The original 3500 gallon tender which is easy to build is standard. The more difficult Stanier 4000 gallon tender version has now become available.  In common with our other designs, the working valvegear will be a robust, slip eccentric, protected between the frames. The outer Walshaerts valvegear will move in a prototypical manner but not be functional, what has been referred to as ‘Bullshaerts!  


THE MODEL MAKERS KIT

      These kits produced for those whose machining facilities or skills are limited or whose modelling time is at a premium.

         The boiler is built, tested and certified. The cylinder units come as a ‘loose assembly’ with pistons and valves in place ready for you carry out the final assembly and seal it up. Items such as hand and axlepump bodies are pre assembled. The kit includes  laser cut steel items, etched brass components, all machining done, pressure gauge, screws, nuts, rivets, ‘O’ ring seals, springs etc. to complete the assembly.

           You will require a bench and vice, some hand tools, a drilling facility (which could be an electric drill on a stand) and a small gas torch for soldering. The work includes bending sheet metal, drilling piloted holes out to size, tapping threads in holes ( in many cases nuts could be used instead), soft and hard ( silver) soldering of small items.

          The model making hobby is littered with part built projects which have been abandoned because the modeller has hit a problem. Included in the price are two hours of our time, a ‘get out of trouble’ service. It could be advice on the phone, a practical soldering training session in our works, correcting a mishap or setting valve timing. Apart from phone calls, a modest charge will be made for time spent over your two hours.

         We can also supply replacements for individual components providing they are returned for us to identify. For etched items there will be charge depending on the size. Whitemetal returned with stamped addressed packing are free. Laser cut steel may be a problem as there are minimum order quantities involved and we shall only order a limited number of spares.

          The Construction  Guide comprises over  30 pages of photographs, exploded diagrams produced on 3D CAD and text, together with identification diagrams and drawings. It takes you through each stage, including jigs and methods, settings and adjustments, finishing with operation and use.

Move over pictures to magnify