LOCO SPECIFICATION
Scale:- 10mm to 1 foot
Length:- 660mm (26”)
Track radius:- 2.3m (7’6”t) minimum
Weight :- 5Kg (10 lb ) est.
Fuel :- Alcohol (Methylated spirit) supplied by constant
level feed system to a ‘toast rack’ style wick burner.
Boiler :- Internally fired, multi flue, superheated, with safety valve.
Built from copper and bronze, silversoldered 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, 12.7mm dia x 22mm stroke (1/2” x 7/8”)
Valvegear Slip eccentric, slide valves, between frames
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.
Pony truck sprung.
PRODUCTION STARTED December 17, 50% complete finish November 2018