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).
Modification notice for the Phantom III jack brackets, detailing an alteration to the keyway angle.
| Identifier | ExFiles\Box 139\1\ scan0057 | |
| Date | 7th February 1936 | |
| X1166 To By.{R.W. Bailey - Chief Engineer} Hs{Lord Ernest Hives - Chair}/Bwg.{J. C. Bowring}24/KW.7.2.36. Phantom III Jack Brackets. We have found that in order to bring the rear jacks into a vertical position when fully extended, it is necessary to set the rear brackets back 6° from the present position. This necessitates an alteration to the keyway in the brackets as per sketch shown below. This modification will be necessary on production chassis, and was mentioned under report Hs{Lord Ernest Hives - Chair}/Bwg.{J. C. Bowring}2/KW.5.2.36. Hs{Lord Ernest Hives - Chair}/Bwg.{J. C. Bowring} PRESENT ANGLE of KEYWAY & TO HORIZONTAL 30° REQUIRED ANGLE 24° G83971 | ||