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 wear measurements for engine bores and pistons for chassis B 60 FB.
| Identifier | ExFiles\Box 144\3\ scan0046 | |
| Date | 13th March 1936 | |
| REPORT RE WEAR IN BORES & PISTONS. Fitter: Trotts Chassis No: B 60 FB Date: 13. 3. 36 Job No.: 3182 Mileage: 3120 BORES TABLE NOMINAL. | TAPER. | OVAL. 1: 3.250" S | + .0035" | .0005" 2: S | + .003" | NIL" 3: S | + .0035" | NIL 4: S | + .003" | NIL 5: S | + .003" | .001" 6: S | + .0025" | .0005" S/sc Satisfactory. PISTONS TABLE (Aerolite F.B. 2441) TOP. thrust | BOTTOM. thrust 1: - .004" | - .004" 2: - .004" | - .003" 3: - .004" | - .004" 4: - .004" | - .004" 5: - .004" | - .003" 6: - .004" | - .004" Signature: JOD | ||