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).
Series of graphs showing various side steering tube spring arrangements and load/deflection characteristics for the Phantom model.
| Identifier | ExFiles\Box 17\3\ Scan052 | |
| Date | 23th July 1926 guessed | |
| SIDE STEERING TUBE SPRING ARRANGEMENTS PHANTOM I SPRING RATING 3500 LBS SET UP .187" LOAD LBS DEFLN INS. SPRING RATING 1750 LBS SPRING RATING 3500LBS LIMIT OF BALL MOVEMENT .187 TOTAL SETUP BOTH ENDS COMPOSN SPRINGS II SPRING RATING 1500 LBS SET UP .420 LOAD LBS SPRING RATING 1500LBS LIMIT OF BALL MOVEMENT SS{S. Smith} TUBE CONSIDERED IN TENSION & COMPRESSION LOAD ON PENDULUM LEVER BALL FOR ANY MOVEMENT OF STEERING ARM BALL GRAPHS A, B & C. SIDE STEERING TUBE CONSIDERED IN TENSION OR COMPRESSION ONLY A 2500 S.S. SPRINGS .262 SET UP LOAD LBS DEFLECTION INS. LIMIT OF SPRING FREE MOVEMENT B SINGLY ARRANGED SPRINGS INITIAL LOAD 90 LBS RATING 750 LBS/1" LOAD LBS RATING 750LBS DEFLECTION INS. LIMIT OF SPRING FREE MOVEMENT C SET UP & INITIAL DOUBLE RATING COMPROMISE. SPRINGS. 750 LBS. SPRINGS. LOAD LBS RATING 750LBS RATING 1500LBS SET UP .060 INS DEFLECTION INS. LIMIT OF SPRING FREE MOVEMENT | ||