We produced the D6xx North British Warship OO Gauge. The model first appeared in 2019 with a further production batch in 2020.
The D600 Class, were diesel-hydraulic locomotives built by the North British Locomotive Company in Glasgow during 1957 and 1958. The fleet was ordered by the British Transport Commission (BTC) as direct comparison with the British Rail Class 40, and were not actually wanted by the Western Region, who preferred their production fleet of D800 Warships. The D600s were the result of power politics within the BTC and the WR: the former was unwilling to sanction radical, stressed-skin lightweight construction locomotives at the time, while the latter was equally insistent that at least some of the new Type 4 power range locomotives on order be equipped with hydraulic transmission. 
From new the D600s wore standard BR green with a 4-inch (102 mm) light grey horizontal band between the cabs a few inches above the solebar. By the time of withdrawal D600 was in all-over rail blue with full yellow ends, D602 was blue with small yellow warning panels on each nose and D601/3/4 were still green, albeit with yellow warning panels.
All five locomotives were withdrawn on 30 December 1967. By this time they were non-standard, even for hydraulic designs, although according to Laira staff reliability was not a problem as many have thought.
Models
The models were produced using tools owned by Kernow Model Rail Centre. Each model was a certified limited edition of 750 and features etched nameplates, working directional and cab lighting, coreless motor with flywheels and is DCC Ready.
K2600 Class 41 Warship Diesel Locomotive number D600 named "Active" in BR Blue livery with full yellow ends, headcode boxes and later style side grilles. (SOLD OUT)
K2601 Class 41 Warship Diesel Locomotive number D601 named "Ark Royal" in BR Green livery with no yellow ends, headcode disks and original louvres. (SOLD OUT)
K2602 Class 41 Warship Diesel Locomotive number D602 named "Bulldog" in BR Green livery with small yellow ends, headcode boxes and later style side grilles. (SOLD OUT)
K2603 Class 41 Warship Diesel Locomotive number D603 named "Conquest" in BR Green livery with small yellow ends, headcode disks and later style side grilles. (SOLD OUT)
K2604 Class 41 Warship Diesel Locomotive number D604 named "Cossack" in BR Green livery with no yellow ends, headcode disks and later style side grilles. (SOLD OUT)
K2605 Class 41 Warship Diesel Locomotive number D602 named "Bulldog" in BR Blue livery with small yellow panels, headcode boxes and later style side grilles. SOLD OUT
K2606 Class 41 Warship Diesel Locomotive number D600 named "Active" in BR Green livery with no yellow ends, headcode disks and original louvres. SOLD OUT
K2607 Class 41 Warship Diesel Locomotive number D601 named "Ark Royal" in BR Green SYP livery with headcode boxes and later grilles - weathered. SOLD OUT
K2608 Class 41 Warship Diesel Locomotive number D604 named "Cossack" in BR Green SYP livery with headcode discs and later grilles - SOLD OUT
