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).
Test report on a Peregrine gearbox's helical 2nd speed performance after high-speed running.
| Identifier | ExFiles\Box 179b\3\ img241 | |
| Date | 15th February 1933 | |
| ORIGINAL. To R.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} c.c. Sg.{Arthur F. Sidgreaves - MD} Wor.{Arthur Wormald - General Works Manager} c.c. E.{Mr Elliott - Chief Engineer} Da.{Bernard Day - Chassis Design} c.c. Hy.{Tom Haldenby - Plant Engineer} Ndy. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}2/KT.15.2.33. Y4027 PEREGRINE GEARBOX. HELICAL 2nd SPEED TO M.631.3629. We have carried out the following test on this gearbox on the engine unit dynamometer to give the 2nd speed loose pinion some high speed running. All the running was done in top gear as under this condition the pinion is turning its fastest. (1) Two Hours at 3000 r.p.m. (2) * * * 3500 r.p.m. (3) Twenty runs of 10 mins. at 4000 r.p.m. with 2 mins. light between each run. (4) Ten runs of 3 mins. at 4500 r.p.m. with 1 min. light between each run. Between each test the 3rd. motion shaft was tried for freedom with the gear lever in neutral, and always spun freely. There was no loss of oil from the gearbox during the tests. On dismantling the gearbox, it was found that both the hardened sleeve on the sideshaft and the bronze bush in the pinion, were in perfect condition. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||