Compare OO 4-6-0 Class 4073 Castle GWR


Manufacturer	Hornby Dublo	Airfix GMR (Great Model Railways)	Airfix GMR (Great Model Railways)	Hornby	Hornby
Year model introduced	1957	1979	2005	2010	2023
DCC Capability	DCC incompatible	Motor fitted but no DCC socket. Ringfield motor	DCC Ready. 8-pin socket	DCC Ready. 8-pin socket	DCC Ready. 21-pin socket
Detailing
Bodyshell - factory-fitted separate details
Chimney	No	No	Yes	Yes	Yes
Coal load(s)	No	No	No	Yes	Yes
Drain cocks	No	No	No	Yes	Yes
Handrails	Yes	No	Yes	Yes	Yes
Injector	No	No	No	Yes	Yes
Injector pipework	No	No	No	Yes	Yes
Lamp irons	No	No	No	Yes	Yes
Nameplates - etched - pre-fitted	No	No	No	Yes	Yes
Numberplates - plastic - require fitting	No	No	No	Yes	Yes
Pipe work	No	No	No	Yes	Yes
Regulator linkage	No	No	No	Yes	Yes
Release valve	No	No	No	Yes	Yes
Reverser	Yes	No	Yes	No	No
Safety valve	Yes	No	Yes	Yes	Yes
Smokebox door dart	No	No	No	Yes	Yes
Smokebox door numberplate	No	No	No	Yes	Yes
Tender handbrakes	No	No	Yes	No	No
Tender water tank	No	No	No	Yes	Yes
Whistle	No	No	Yes	Yes	Yes
Whistle - turned brass	Yes	No	No	No	No

Chassis/underframe detail
Brake rigging chassis	No	No	Yes	No	No
Correct-thickness "stamped" rods	No	No	No	Yes	Yes
Fluted connecting rods with oily finish	No	No	No	Yes	Yes
Footsteps	No	No	No	Yes	Yes
Inside valve gear	No	No	No	Yes	Yes
Lubricator mechanism	No	No	No	Yes	Yes
Pipework	No	No	No	Yes	Yes
Sanding gear	No	No	No	Yes	Yes
Sprung front bogie	No	No	No	Yes	Yes

Cab, footplate & interior detail
Detailed & painted	No	No	No	Yes	Yes
Fallplate	No	No	No	Yes	Yes
Glazing	No	No	Yes	Yes	Yes

Tender
Has easy-to-use coupling to loco	No	No	Yes	No	No
Has enclosure for speaker	No	No	No	Yes	Yes
Houses digital decoder	No	No	No	Yes	Yes
Houses PCB	No	No	No	Yes	Yes
Permanently coupled to locomotive	Yes	No	No	No	No

Wheel "aesthetics"
Chemically-blackened	No	No	No	Yes	Yes
Coloured-plastic	No	No	Yes	No	No
Nickel-plated	No	No	Yes	No	No
Painted	Yes	No	No	Yes	Yes

Bufferbeam detail (pre-fitted)
Pipework - pre-fitted to front	No	No	Yes	Yes	Yes
Pipework - pre-fitted to rear	No	No	Yes	Yes	Yes
Sprung buffers	No	No	No	Yes	Yes

Bufferbeam detail (in detailing pack)
Cosmetic coupling	No	No	No	Yes	Yes
NEM Couplings	No	No	No	Yes	Yes

Mechanical
Body Construction	No	No	No	Plastic with metal parts	Plastic with metal parts
Chassis construction	Diecast	No	Diecast	Diecast	Diecast
Loco-driven wheels (number of)	2 wheels	No	2 wheels	2 wheels	2 wheels
Minimum radius	Radius 1	No	Radius 2	Radius 2	Radius 2
Coupling socket/mounting
Fixed	Yes	No	No	No	No
NEM pockets	No	No	No	Yes	Yes
Non-NEM socket	No	No	Yes	No	No

Coupling type	Peco style	No	Tension lock	Tension lock	Tension lock
Weighting (to assist adhesion)
Within boiler	No	No	No	Yes	Yes
Within chassis	Yes	No	No	Yes	Yes
Within tender	No	No	Yes	Yes	Yes

Separating the body from the chassis	Secured with one or more screws	No	Secured with one or more screws	Secured with one or more screws	Secured with one or more screws
Electrical
Motor type	3-pole	No	Ringfield	5-pole with flywheel	5-pole with flywheel
Motor location	Locomotive	No	Locomotive	Locomotive	Locomotive
Power collection	2 rail DC	No	2 rail DC	2 rail DC	2 rail DC
Pickups	Driving and trailing wheels only	No	Locomotive only	Driving wheels and tender wheels	Driving wheels and tender wheels
DCC speaker	No provision for speaker	No	No provision for speaker	Provision for 28mm round speaker	Provision for 28mm round speaker
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