The chassis is etched nickel-silver, available from the 2mm Scale Association along with suitable wheels and gears and 'muffs'. A Nigel Lawton motor provides the power, and a CT electronics DCC decoder fits in the cab. Some extra lead weighting has been added inside the tanks.
Having got the chassis working well enough on analogue DC, I fitted the DCC decoder, and now it runs very nicely on the rolling road. It is not so good picking up from the tracks yet, but I have still got to fit the rail-top pickup scrapers and the DCC stayalive capacitors that Freshwater has.
This locomotive will become number 13 Carisbrooke, and will be lines southern olive green with BRITISH RAILWAYS in sunshine lettering, if I can find a supplier for the lettering and nameplates.