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).
Table detailing spring combinations with corresponding load, rate, and stress values.
| Identifier | ExFiles\Box 95\3\ scan0021 | |
| Date | 31th August 1934 guessed | |
| SHEET (4) TABLE II - CONTINUED:- | No. of Combination | | Outer Spring Designation | Inner Spring Designation | Normal Load at Wheel. | Rate at wheel. | Max. stress outer and inner. | |---|---|---|---|---|---|---| | 13 | | D.O. | A.I. | 1141 lbs. | 111.2 lbs/in. | 112,700 lbs/in² Outer. | | 14 | | D.O. | B.I. | 1149 lbs. | 110.2 lbs/in. | 112,700 lbs/in² Outer. | | 15 | | D.O. | C.I. | 1220 lbs. | 120.3 lbs/in. | 112,700 lbs/in² Outer. | | 16 | X | D.O. | D.I. | 1250 lbs. | 124 lbs/in. | 112,700 lbs/in² both. | X - indicates combinations as designed. | ||