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).
Instructions and part list for modifying a Wraith III Propeller Shaft by fitting a Phantom 111 Sliding Joint.
| Identifier | ExFiles\Box 9\2\ 02-page15 | |
| Date | 22th April 1938 | |
| c. Rm.{William Robotham - Chief Engineer} DA.{Bernard Day - Chassis Design}13/C.22.4.38. 637. WRAITH 111. PROPELLER SHAFT. SECTION 6110. Please receive herewith two blueprints of each of the following :- S.CD.581 Ph.lll Sliding Joint applied to Wraith lll. 1 off. Ex.S.698 Adapter 1 off. Ex.S.699 Coupling Sleeve. 1 off. The following standard parts will also be required :- G.82089 Phantom lll Universal Joint, Rear (Sliding) complete, with the exception of G.55684, which is replaced by Ex.S.699 Coupling Sleeve. 1 off. GW.1673 Wraith lll, Hardy Spicer Propeller Shaft, but with Sliding Joint removed and Tube cut off as shown on S.CD.581. 1 off. The above is in accordance with Rm{William Robotham - Chief Engineer}'s verbal instructions to fit a Ph.lll Sliding Joint in place of the Hardy Spicer Sliding Joint on Wraith lll Propeller Shaft. Kindly instruct one set. Ald{F. Allwood - Experimental Design} BY/Ald.{F. Allwood - Experimental Design} | ||