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).
Blueprint detailing specifications for a spring balance used in Peregrine servo tests.
| Identifier | ExFiles\Box 169\3\ img077 | |
| Date | 4th October 1932 | |
| Hs{Lord Ernest Hives - Chair} 721 SPRING BALANCE PEREGRINE SERVO TESTS .300 1.075 SPRING .300 DIA RADIUS 1.000 OF 5 COILS WITH HALF A (GROUND) SQUARE EACH END) (OR OPEN ENDED) OR TO GIVE REQUIRED RATING OF 360 lbs/in AT 2.400 200 lbs LENGTH 2.930 ROLLS-ROYCE, LTD. PRINT ROOM OCT 4 1932 DERBY. | ||