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).
Blueprints and standard parts for the Wraith shock dampers.
| Identifier | ExFiles\Box 9\8\ 08-page46 | |
| Date | 27th June 1938 | |
| 6H2 c. Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} BY/Ald.{F. Allwood - Experimental Design}6/G.27.6.38. WRAITH. SHOCK DAMPERS. SECTION 7160. Please receive herewith two blueprints of the following new drawings :- Ex.S.827 Joint 2 off. Ex.S.828 End Piece - Valve Block. 2 " Ex.S.829 Valve Block. 2 off. The following standard parts will also be required.- GW.1552 Spring 4 off. K.2807 Countersunk Screw. 8 off. .250 Dia. Steel Ball 4 off. These pieces are in accordance with memo Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer}8/R.{Sir Henry Royce} 3.6.38. and are to be used with the standard Wraith. Damper casing and the Bentley valve as shown on S.CD.429 issued under our memo BY/Ald.{F. Allwood - Experimental Design}11/G.18.2.38. Kindly instruct one set. Ald{F. Allwood - Experimental Design} BY/Ald.{F. Allwood - Experimental Design} | ||