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 the specifications for twisted axle shafts for a Ph III SII chassis.
| Identifier | ExFiles\Box 91\3\ scan0257 | |
| Date | 6th January 1936 | |
| PH III SII CHASSIS OFF SIDE ANGLE OF TWIST BETWEEN THESE TWO POINTS = 17° OR .190 MEASURED ON CIRCUMFERENCE AXLE SHAFTS G82645-6 in S/ZNCR. HARDENED ON TEETH ONLY. NEAR SIDE ANGLE OF TWIST BETWEEN THESE TWO POINTS = 33° OR .365 MEASURED ON CIRCUMFERENCE DRWG DIMENSION FOR TWISTED SECTION 1.250 DIA ±5 AXLE SHAFTS TWISTED TO RECEIVE A PERMANENT SET 6-1-36 | ||