Comparison of OO 4-6-2 Class A1 Gresley LNER models


Manufacturer	Hornby	Hornby	Hornby	Hornby	Hornby
Year model introduced	1981	2006	2021	2023	2023
DCC Capability	DCC compatible but no socket	DCC Ready. 8-pin socket	DCC Ready. 8-pin socket	DCC Ready. 8-pin socket	DCC Ready. 21-pin socket
Detailing
Bodyshell - factory-fitted separate details
Boiler supports	No	No	No	No	Yes
Chimney	No	No	No	No	Yes
Coal load(s)	No	No	No	No	Yes
Coal rails	No	Yes	No	No	Yes
Dome	No	No	No	No	Yes
Handrails	No	Yes	No	No	Yes
Lamp irons	No	Yes	No	No	Yes
Nameplates - etched - pre-fitted	No	No	No	No	Yes
Pipe work	No	No	No	No	Yes
Regulator linkage	No	No	No	No	Yes
Reverser	No	No	No	No	Yes
Safety valves - turned brass	No	Yes	No	No	Yes
Smokebox door dart	No	Yes	No	No	Yes
Whistle - turned brass	No	Yes	No	No	Yes

Chassis/underframe detail
Brake rigging chassis	No	Yes	No	No	No
Correct-thickness "stamped" rods	No	Yes	No	No	Yes
Fluted connecting rods with oily finish	No	Yes	No	No	Yes
Footsteps	No	No	No	No	Yes
Sanding gear	No	No	No	No	Yes

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

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

Wheel "aesthetics"
Chemically-blackened	No	No	No	No	Yes
Coloured-plastic	No	Yes	No	No	No
Metal-pin point bearings	No	No	No	No	Yes
Painted	No	No	No	No	Yes

Bufferbeam detail (pre-fitted)
Cosmetic coupling - hook only	No	Yes	No	No	Yes
Pipework - pre-fitted to front	No	Yes	No	No	No
Pipework - pre-fitted to rear	No	Yes	No	No	No
Sprung buffers	No	Yes	No	No	Yes

Bufferbeam detail (in detailing pack)
Cosmetic Screwlink couplings	No	No	No	No	Yes
Pipework (for front)	No	No	No	No	Yes
Pipework (for rear)	No	No	No	No	Yes

Mechanical
Body Construction	No	No	Plastic with metal parts	Diecast	Plastic with metal parts
Working cosmetic features
Roof vent	No	No	No	No	Yes

Chassis construction	No	Plastic & metal	Diecast	No	Diecast
Loco-driven wheels (number of)	No	2 wheels	6 wheels	No	6 wheels
Minimum radius	No	Radius 2	Radius 2	No	Radius 2
Coupling socket/mounting
NEM pockets	No	Yes	Yes	No	Yes

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

Separating the body from the chassis	No	Secured with one or more screws	Secured with one or more screws	No	Secured with one or more screws
Electrical
Motor type	No	3-pole with flywheel	5-pole (standard)	No	5-pole (standard)
Motor location	No	Locomotive	Locomotive	No	Locomotive
Power collection	No	2 rail DC	2 rail DC	No	2 rail DC
Working lights
Firebox flicker	No	No	Yes	No	Yes

Pickups	No	Driving wheels and tender wheels	All wheels	No	All wheels
DCC speaker	No	No provision for speaker	Provision for 23mm round speaker	No	Provision for 23mm round speaker
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