Mark Allatt, trustee of the A1 Steam Locomotive Trust, said: "We are in the pre-launch phase of the project to build our third new main line steam locomotive, the yet-to-be-named Gresley V4 No. 3404.

The A1SLT announced at its Silver Jubilee Convention in 2015 that it would build three extinct LNER steam locomotives, a Gresley class V4 2-6-2, a Gresley class V3 2-6-2T and a Gresley class K3 2-6-0.

Mark Allatt, A1 Trustee, said: “We are in the pre-launch phase of the project to build our third new main line steam locomotive, the yet-to-be-named Gresley class V4 No. 3403 – Sir Nigel ...

Sir Nigel Gresley's two grandsons Ben and the late Tim Godfrey with the new Gresley class P2 No. 2007 Prince of Wales. Building of the original engines began in November 1926.