.Extensions

Comparison of OO 4-6-2 Class A3 LNER models

Trix OO 4-6-2 Class A3 LNER Tri-ang OO 4-6-2 Class A3 LNER Hornby OO 4-6-2 Class A3 LNER Hornby OO 4-6-2 Class A3 LNER Hornby OO 4-6-2 Class A3 LNER Hornby OO 4-6-2 Class A3 LNER Hornby OO 4-6-2 Class A3 LNER Hornby OO 4-6-2 Class A3 LNER Hornby OO 4-6-2 Class A3 LNER
Manufacturer Trix Tri-ang Hornby Hornby Hornby Hornby Hornby Hornby Hornby
Year model introduced 1968 1968 1981 1998 2005 2005 2022 2023 2023
DCC Capability DCC incompatible DCC incompatible Motor fitted but no DCC socket. Ringfield motor DCC compatible but no socket DCC Ready. 8-pin 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 No No Yes
Yes
Yes
Chimney No No No No No No Yes
Yes
Yes
Coal load(s) No No No No No No Yes
Yes
Yes
Coal rails No No No No No No Yes
No Yes
Dome No No No No No No Yes
Yes
Yes
Drain cocks No No No No No No No Yes
No
Gangway corridor connectors No No No No No No Yes
Yes
Yes
Handrails Yes
No Yes
No No No Yes
Yes
Yes
Injector No No No No No No Yes
No Yes
Lamp irons No No No No No No Yes
Yes
Yes
Lubricator mechanism No No No No No No No Yes
No
Nameplates - etched - pre-fitted No No No No No No No Yes
No
Nameplates - plastic - pre-fitted No No No No No No Yes
No Yes
Oil lubricators No No No No No No No Yes
No
Regulator linkage No No No No No No Yes
Yes
Yes
Release valve No No No No No No No Yes
No
Reverser No No No No No No Yes
Yes
Yes
Roof hatch No No No No No No No Yes
No
Safety valve No No No No No No Yes
Yes
Yes
Safety valves - turned brass Yes
No Yes
No No No No No No
Smoke deflectors No No No No No No No Yes
No
Smokebox door dart No No No No No No Yes
Yes
Yes
Smokebox door numberplate No No No No No No Yes
Yes
Yes
Tender ladder No No No No No No Yes
No Yes
Vents No No No No No No Yes
No Yes
Water tank caps No No No No No No No Yes
No
Whistle No No No No No No Yes
Yes
Yes
Chassis/underframe detail
Brake rigging chassis No No No No No No Yes
Yes
Yes
Correct-thickness "stamped" rods No No No No No No Yes
Yes
Yes
Fluted connecting rods with oily finish No No No No No No Yes
Yes
Yes
Footsteps No No No No No No Yes
Yes
Yes
Inside valve gear No No No No No No Yes
Yes
Yes
Lubricator mechanism No No No No No No No Yes
No
Sanding gear No No No No No No No Yes
No
Sprung front & rear pony trucks No No No No No No No Yes
No
Sprung front bogie Yes
No No No No No Yes
No Yes
Cab, footplate & interior detail
Crew communication doors No No No No No No No Yes
No
Detailed & painted No No No No No No Yes
Yes
Yes
Fallplate No No No No No No Yes
Yes
Yes
Footplate doors No No No No No No Yes
No Yes
Glazing Yes
No No No No No Yes
Yes
Yes
Seating No No No No No No Yes
No Yes
Tender
Has easy-to-use coupling to loco Yes
No Yes
No No No Yes
Yes
Yes
Has enclosure for speaker No No No No No No Yes
Yes
Yes
Houses digital decoder No No No No No No Yes
Yes
Yes
Houses PCB No No No No No No Yes
Yes
Yes
Wheel "aesthetics"
Chemically-blackened No No Yes
No No No Yes
Yes
Yes
External brake discs No No No No No No No Yes
No
Metal-pin point bearings No No No No No No Yes
No Yes
Nickel-plated Yes
No Yes
No No No No No No
Painted Yes
No Yes
No No No Yes
Yes
Yes
Traction tyres Yes
No No No No No No No No
Bufferbeam detail (pre-fitted)
Cosmetic screw link coupling No No No No No No Yes
No Yes
Lifeguard No No No No No No No Yes
No
Pipework - pre-fitted to front No No No No No No Yes
Yes
Yes
Pipework - pre-fitted to rear No No No No No No Yes
Yes
Yes
Sprung buffers No No No No No No Yes
Yes
Yes
Bufferbeam detail (in detailing pack)
Cosmetic coupling No No No No No No No Yes
No
NEM Couplings No No No No No No No Yes
No
Detail pack also contains...
Brake rigging No No No No No No No Yes
No
Crew No No No No No No No Yes
No
Locomotive plaque No No No No No No No Yes
No
Spare wheelset No No No No No No Yes
No Yes
Mechanical
Body Construction No No No No No No Plastic with metal parts
Diecast
Plastic with metal parts
Working cosmetic features
Roof vent No No No No No No Yes
No Yes
Chassis construction Diecast
No Diecast
No No No Diecast
Heavy diecast
Diecast
Loco-driven wheels (number of) 2 wheels
No None
No No No 2 wheels
6 wheels
6 wheels
Minimum radius Radius 1
No Radius 2
No No No Radius 2
Radius 2
Radius 2
Coupling socket/mounting
Fixed Yes
No Yes
No No No No No No
NEM pockets No No No No No No Yes
Yes
Yes
Coupling type Peco style
No Tension lock
No No No Tension lock
Tension lock
Tension lock
Weighting (to assist adhesion)
Within body No No No No No No Yes
Yes
Yes
Within boiler No No No No No No No Yes
No
Within chassis Yes
No No No No No Yes
Yes
Yes
Within tender Yes
No Yes
No No No No Yes
No
Separating the body from the chassis Secured with one or more screws
No No No No No Secured with one or more screws
Secured with one or more screws
Secured with one or more screws
Electrical
Motor type 5-pole (standard)
No Ringfield
No No No 5-pole (standard)
5-pole with flywheel
5-pole (standard)
Motor location Locomotive
Locomotive
Tender
No No No Locomotive
Locomotive
Locomotive
Power collection 2 or 3 rail DC
No 2 rail DC
No No No 2 rail DC
2 rail DC
2 rail DC
Working lights
Firebox flicker No No No No No No Yes
No No
Headlamps Yes
No No No No No No No No
Pickups No No No No No No Driving wheels and tender wheels
Driving wheels and tender wheels
Driving and leading wheels only
DCC speaker No provision for speaker
No No provision for speaker
No No No Provision for 28mm round speaker
Provision for a speaker (dimensions unknown)
Provision for 28mm round speaker
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