Comparison of N Class 37 models


Manufacturer	Graham Farish	Graham Farish	Graham Farish	Graham Farish	Graham Farish
Year model introduced	1981	2003	2007	2009	2014
DCC Capability	DCC compatible but no socket	DCC compatible but no socket	DCC Ready. 6-pin socket	DCC Ready. 6-pin socket	DCC Ready. 6-pin socket
Bodyshell
Bodyshells represented (of Prototypes)
Class 37/0 as built - centre headcode	No	No	Yes	No	No
Class 37/0 as built - split headcode	Yes	No	No	No	No
Class 37/0 revised bodywork - centre headcode	Yes	No	No	No	No
Class 37/0 revised bodywork - split headcode	No	No	No	Yes	No
Class 37/4	No	Yes	No	No	Yes
Class 37/5 - centre headcode	No	No	No	No	Yes
Class 37/6 - centre headcode	No	Yes	No	No	No

Detailing
Bodyshell - factory-fitted separate details
Handrails	No	No	Yes	Yes	Yes
Horn(s)	No	No	Yes	Yes	Yes
Nameplates - etched - require fitting	No	No	Yes	Yes	No
Radio antenna	No	No	Yes	Yes	Yes

Chassis/underframe detail
Battery box	Yes	Yes	Yes	Yes	No
Footsteps	No	No	Yes	Yes	No
Fuel tank	Yes	Yes	Yes	Yes	No

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

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

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

Mechanical
Body Construction	Plastic	Plastic	Plastic with metal parts	Plastic with metal parts	Plastic with metal parts
Chassis construction	Plastic & metal	Plastic & metal	Diecast	Diecast	Diecast
Loco-driven wheels (number of)	4 wheels	4 wheels	12 wheels	12 wheels	12 wheels
Minimum radius	Radius 2	Radius 2	Radius 2	Radius 2	Radius 2
Coupling socket/mounting
Fixed	Yes	Yes	No	No	No
NEM pockets	No	No	Yes	Yes	No

Coupling type	N-gauge standard Arnold-Rapido	N-gauge standard Arnold-Rapido	N-gauge Arnold-Rapido with NEM socket	N-gauge Arnold-Rapido with NEM socket	N-gauge Arnold-Rapido with NEM socket
Weighting (to assist adhesion)
Within chassis	Yes	Yes	Yes	Yes	No

Separating the body from the chassis	Body clips off from chassis	Body clips off from chassis	Body clips off from chassis	Body clips off from chassis	Body clips off from chassis
Electrical
Motor type	Can motor	5-pole with two flywheels	5-pole with two flywheels	5-pole with two flywheels	5-pole with two flywheels
Motor location	Centre of chassis	Centre of chassis	Centre of chassis	Centre of chassis	Centre of chassis
Power collection	2 rail DC	2 rail DC	2 rail DC	2 rail DC	2 rail DC
Working lights
Directional headlights & tail lights	No	No	Yes	Yes	No

Pickups	Driving wheels only	Driving wheels only	All wheels	All wheels	All wheels
DCC speaker	No provision for speaker	No provision for speaker	No provision for speaker	No provision for speaker	No provision for speaker
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