The project to build new Gresley class P2 No. 2007 Prince of Wales is delighted to announced that it has placed a £50,000 with DB Meiningen for the design work on the new steam locomotive’s boiler.
Photography:
- Two additional washout doors in the front upper area of the boiler barrel
- Additional blow down valve flange to suit Everlasting Valve Company blow down valve
- Deleted boss on the dome (originally fitted to secure the dome cover)
- Increased thickness of the bottom of the foundation ring from 35mm to 40mm and use of forged foundation ring corners
- Stay holes will to be a cone of 15 degrees included angle on water side to prevent contact with stay shanks as firebox heats up
- Reduced height of dome by 1in (25.4 mm) and re-profiling of dome to clear boiler cladding on P2
- P (pressure vessel) grade steel used throughout
- Diameter of roof stays 25mm
- Washout doors with metric threads
- Stay welded with fillet weld
- Number of flexible stays increased
- Two additional steam take-offs on RH side of front of boiler barrel (for lubrication atomisers and whistle)
- Modified boss layout boiler cladding to suit both A1 and P2 locomotives
- Design according to PED, TRD and AD2000 with maximum allowable working pressure 17.25 bar (250 psi)
- Finite Element Analysis Stress and boiler calculations for modified dome
- Review and approval of design by TÜV (Notified Body)
- Use of diagram 118A Tornado boiler with detailed modifications to improve overhaul life
- Interchangeable with Tornado boiler
- Tornado boiler is 16.5in shorter than P2 boiler – No. 2007’s smoke box will be extended within the cladding
Mark Allatt, Trustee and P2 Project Director, The A1 Steam Locomotive Trust, commented:
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