Modifications to the Wraith II rear brakes, specifically concerning the pull-off springs.
| Identifier | ExFiles\Box 7\7\ X 606 Brakes-page042 | |
| Date | 17th February 1937 | |
| AFM {Anthony F. Martindale} 1044 (606) HPS {Horace Percy Smith - Experimental Factory Mgr} C. De. Fm. SECRET. E {Mr Elliott - Chief Engineer} /HDY. {William Hardy} 1/HP.17.2.37. Wraith II - Rear Brakes. We shall be issuing shortly N.Sch.5044 showing various small modifications to the rear brakes, one of which will be less highly stressed pull-off springs for the shoes. These springs are not likely to be available for the second car, but there is a spring G.55055 which can be used in the meantime in place of GW.689. G.55055 is a Japan(Experimental Engine) III piece, and, therefore, there may not be any in the Works. In this case it seems worthwhile to us to order a few. E {Mr Elliott - Chief Engineer} /HDY. {William Hardy} | ||
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).