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).
Condition of main bearings from Kestrel 4329 engine after 100 hours of development running at Tereghine rating.
| Identifier | ExFiles\Box 115\2\ scan0387 | |
| Date | 10th August 1937 | |
| UPPER HALVES - 1 to 7 - KESTREL 4329 - CONDITION OF MAIN BEARINGS R.43815-40, PARALLEL BORED., IN R.R. B2/1, AFTER 100 HR. DEVELOPMENT AT TEREGHINE RATING. TOTAL RUNNING - 122 1/2 HR. (1.8.37 to 10.8.37) KF 12 | ||