Of all the designs which I regard to be “almost unattainable” in terms of LEGO modeling, those of Sir Nigel Gresley are perhaps at the top of the list. Probably one of the greatest locomotive designers of all time, Gresley is responsible for the legendary A3 and A4 pacific locomotives of England, not to mention numerous other successful designs.

Gresley was also responsible for the six P-class 2-8-2 ‘mikado” type locomotives used by the London & North Eastern Railway (LNER). These locomotives arose out of the need for more powerful engines to be used in passenger service between Edinburgh and Aberdeen. One locomotive was initially built, which sported three cylinders and an A3-style boiler with a longer firebox, double blastpipe, feedwater heater, and smoke deflectors. The result was delivered in May of 1934, numbered 2001 and named “Cock O’ The North”.

The following P2 locomotives were improved upon until the last one, 2006, was completed. Gresley died in 1941, and his successor, Edward Thompson, rebuilt all P2 locomotives into A2/2 pacifics.

Currently, there are two separate groups working to build new P2 locomotives. One is based in Darlington, and comprised of the same team responsible for the Peppercorn A1 class Tornado. Similar to Tornado, the P2 Locomotive Trust is building a new locomotive of the class, improving upon the advancements made decades before, instead of rebuilding a former member of the class. Once completed, this new engine will be numbered 2007 and named “Prince of Wales”. Several modern techniques are being used on the locomotive, like a new pilot truck design, and use of the Lentz/Franklin rotary cam valve gear. The other P2 group is recreating the original locomotive, 2001, in the classic Gresley streamlined style.

Sam, of Australia, who goes by his Flickr username British Bricks, has chosen Prince of Wales as his newest modeling endeavor.