Comparison of OO 4-6-2 Class 7MT Britannia BR models

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Comparison of OO 4-6-2 Class 7MT Britannia BR models


Manufacturer	Tri-ang	Hornby	Hornby	Hornby
Year model introduced	1960	1981	2000	2006
DCC Capability	DCC compatible but no socket. Complete rewire required - OO	Motor fitted but no DCC socket. Ringfield motor	DCC Ready. 8-pin socket	DCC Ready. 8-pin socket
Detailing
Bodyshell - factory-fitted separate details
Handrails	No	Yes	Yes	No
Pipe work	No	No	Yes	No
Regulator linkage	No	Yes	Yes	No
Safety valves - turned brass	Yes	Yes	Yes	No
Smoke deflectors	Yes	No	No	No
Tender ladder	No	No	Yes	No
Whistle	Yes	Yes	Yes	No

Chassis/underframe detail
Brake rigging chassis	No	No	Yes	No

Cab, footplate & interior detail
Glazing	No	No	Yes	No

Tender
Has easy-to-use coupling to loco	Yes	Yes	Yes	No

Wheel "aesthetics"
Chemically-blackened	Yes	Yes	Yes	No
Nickel-plated	No	Yes	Yes	No

Bufferbeam detail (pre-fitted)
Sprung buffers	No	No	Yes	No

Bufferbeam detail (in detailing pack)
Pipework (for rear)	No	No	Yes	No

Mechanical
Chassis construction	Diecast	Diecast	Plastic & metal	No
Loco-driven wheels (number of)	2 wheels	None	None	No
Minimum radius	Radius 1	Radius 2	Radius 2	No
Coupling socket/mounting
Fixed	Yes	Yes	Yes	No

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

Separating the body from the chassis	Secured with one or more screws	Secured with one or more screws	Secured with one or more screws	No
Electrical
Motor type	3-pole	Ringfield	Ringfield	No
Motor location	Locomotive	Tender	Tender	No
Power collection	2 rail DC	2 rail DC	2 rail DC	No
Pickups	2 out of 3 axles	No	No	No
DCC speaker	No provision for speaker	No provision for speaker	No provision for speaker	No
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