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).
Specification table for Phantom side steering tube ends.
| Identifier | ExFiles\Box 17\3\ Scan258 | |
| Date | 14th May 1928 | |
| PHANTOM SIDE STEERING TUBE ENDS. ARRGT. OR LOP. NO. | PIECE NO: OF SPRING. | RATING AND MAXIMUM STRESS. | TOTAL BALL END MOVEMENT. | CHASSIS TO WHICH FITTED. | REPLACED BY.{R.W. Bailey - Chief Engineer} ---|---|---|---|---|--- F.72514 | F.4614 | 3550 lbs/inch. | .175 each way at each end. | V.{VIENNA} series to and of B2. | F.76788. F.76245 | F.76110 | 1400 lbs/inch. 84,100 lbs. | .200 each way at each end. | C2. series. | F.76406 | F.76110 | 1400 lbs/inch. 84,100 lbs. | .200 each way at each end. | D2. series. | N.sch.2258 F.76787 | F.76726 | 1500 lbs/inch. 84,555 lbs. | .300 each way at each end. | E2. F2A. F2B. G2A. | F.78117 | F.77944 | 1959 lbs/inch. 85,000 lbs. | .300 each way at each end. | EAC.14 (exp) (but suitable for E2. to G2A. | F.76788 | F.76726. | 1500 lbs/inch. 84,555 lbs. | .300 each way at each end. | Conversions from V.{VIENNA} to B2. series. | BY/HEB.{H. Biraben} Handwritten text: (Vertically on right side) +X7450 (Vertically, below BY/HEB{H. Biraben}, all crossed out) X7450, X8450, X7430, X5780 | ||