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).
The condition of the 'A' side cylinders, detailing bore dimensions, ovality, and wear.
| Identifier | ExFiles\Box 146\1\ scan0211 | |
| Date | 15th March 1938 | |
| REPORT UPON CONDITION OF CYLINDERS CHASSIS N⁰: 3-AZ-20. F.B.A. DATE: 15/3/38 MILEAGE: 32645 MILES. JOB N⁰: 37720 'A' SIDE 1ST GRIND OUT ORIGINAL BORES: YES. CYLINDER BORE DIMENSIONS NOTE: DIM'S "AA{D. Abbot-Anderson}" TAKEN AT RT ANGLES TO C' SHAFT. DIM'S "BB" TAKEN PARALLEL TO C' SHAFT. [Handwritten Note]: Measurements taken just below the LIP TABLE DATA: N⁰ CYLINDER 1: MOUTH: AA{D. Abbot-Anderson}: 2515, BB: 250, OVALITY: .0015, WEAR: .001. NEW 3.2505 CENTRE: AA{D. Abbot-Anderson}: 252, BB: 250, OVALITY: .002., WEAR: .005 CROWN: AA{D. Abbot-Anderson}: 2545, BB: 255, OVALITY: .0005, WEAR: .0045 N⁰ CYLINDER 2: MOUTH: AA{D. Abbot-Anderson}: 250, BB: 250, OVALITY: NIL, WEAR: NIL. NEW 3.250 CENTRE: AA{D. Abbot-Anderson}: 252, BB: 251, OVALITY: .001", WEAR: .002 CROWN: AA{D. Abbot-Anderson}: 2545, BB: 254, OVALITY: .0005, WEAR: .0045 N⁰ CYLINDER 3: MOUTH: AA{D. Abbot-Anderson}: 248, BB: 2515, OVALITY: .0035, WEAR: .0015. NEW 3.250 CENTRE: AA{D. Abbot-Anderson}: 251, BB: 252, OVALITY: .001, WEAR: .002 CROWN: AA{D. Abbot-Anderson}: 25425, BB: 253, OVALITY: .00125, WEAR: .00425 N⁰ CYLINDER 4: MOUTH: AA{D. Abbot-Anderson}: 2495, BB: 250, OVALITY: .0005, WEAR: NIL. NEW 3.250 CENTRE: AA{D. Abbot-Anderson}: 252, BB: 2505, OVALITY: .0015, WEAR: .002 CROWN: AA{D. Abbot-Anderson}: 2555, BB: 2515, OVALITY: .004, WEAR: .0055 N⁰ CYLINDER 5: MOUTH: AA{D. Abbot-Anderson}: 249, BB: 250, OVALITY: .001, WEAR: NIL. NEW 3.250 CENTRE: AA{D. Abbot-Anderson}: 2525, BB: 250, OVALITY: .0025, WEAR: .0025 CROWN: AA{D. Abbot-Anderson}: 254, BB: 252, OVALITY: .002., WEAR: .004 N⁰ CYLINDER 6: MOUTH: AA{D. Abbot-Anderson}: 250, BB: 249, OVALITY: .001., WEAR: NIL. NEW 3.250 CENTRE: AA{D. Abbot-Anderson}: 2525, BB: 250, OVALITY: .0025, WEAR: .0025 CROWN: AA{D. Abbot-Anderson}: 253, BB: 25325, OVALITY: .00025, WEAR: .00325 [Handwritten Note at bottom]: Cylinder Bore Sizes as per Rec'd Cards "A" side + 1/2 [Handwritten Table at bottom]: 1 2 3 4 5 6 S S S S S S [Handwritten Initials]: RB{R. Bowen} | ||