LNER P2 Class 2007 Prince of Wales

Specifications
Specifications
Configuration:;
• Whyte	2-8-2
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 2 in (0.97 m)
Driver dia.	6 ft 2 in (1.88 m)
Trailing dia.	3 ft 8 in (1.12 m)
Loco weight	110 long tons 5 cwt (247,000 lb or 112 t) max.
Tender weight	55 long tons 6 cwt (123,900 lb or 56.2 t) max.
Fuel type	Coal
Boiler pressure	250 psi (1.72 MPa)
Cylinders	Three
Cylinder size	19.75 in × 26 in (502 mm × 660 mm)
Loco brake	Air (Vacuum for heritage railways)

Type and origin
Type and origin
Power type	Steam
Designer	Sir Nigel Gresley (original designer)
Builder	P2 Steam Locomotive Company

LNER 2007 Prince of Wales
LNER 2007 Prince of Wales
	No. 2007 at Darlington Railway Works in September 2024
Power type
Type and origin
Power type	Steam
Designer	Sir Nigel Gresley (original designer)
Builder	P2 Steam Locomotive Company
Configuration:;
Specifications
Configuration:;
• Whyte	2-8-2
Gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Leading dia.	3 ft 2 in (0.97 m)
Driver dia.	6 ft 2 in (1.88 m)
Trailing dia.	3 ft 8 in (1.12 m)
Loco weight	110 long tons 5 cwt (247,000 lb or 112 t) max.
Tender weight	55 long tons 6 cwt (123,900 lb or 56.2 t) max.
Fuel type	Coal
Boiler pressure	250 psi (1.72 MPa)
Cylinders	Three
Cylinder size	19.75 in × 26 in (502 mm × 660 mm)
Loco brake	Air (Vacuum for heritage railways)
Tractive effort
Performance figures
Tractive effort	43,684 lbf (194.32 kN)
Numbers
Career
Numbers	2007 (display); 98807 (TOPS)
Disposition	Under construction

LNER Class P2 No. 2007 Prince of Wales is a 2-8-2 "Mikado" steam locomotive being built at Darlington Locomotive Works, England to an original design by Nigel Gresley, former Chief Mechanical Engineer for the London and North Eastern Railway (LNER). It will be the seventh member of its class and the one of the only P2s in existence along with the replica of No. 2001 after the original six locomotives were converted to 4-6-2 LNER Thompson Class A2/2 engines by Gresley's successor Edward Thompson in 1943 and 1944. The original P2s were built between 1934 and 1936 and employed to haul heavy passenger trains on the LNER's Edinburgh to Aberdeen line, and were declared Britain's most powerful express passenger engines.

The A1 Steam Locomotive Trust announced the project in 2013, following the completion and success of its first new build project LNER Peppercorn Class A1 No. 60163 Tornado in 2008. Construction began in 2014 with its design based on P2 No. 2001 Cock o' the North with some modifications to address historic design problems, improve maintenance, and comply with modern railway standards. The boiler constructed at Meiningen Steam Locomotive Works in Germany was delivered to Darlington in December 2025. Prince of Wales is expected to be completed in 2027 at an estimated cost of £6 million, after which it will run on the mainline and heritage railways.