Blueprint showing a cross-section of a fractured E.A.C. piston.
| Identifier | ExFiles\Box 66\1\ scan0015 | |
| Date | 13th March 1925 guessed | |
| THE FRACTURED E.A.C. PISTON. LINE OF FRACTURE FOLLOWING LINE OF CHANGE OF SECTION WT. OF PISTON HEAD COMPLETE WITH RINGS, ABOVE AA {D. Abbot Anderson} = 1.09 lbs. | ||
From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).