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).
The use of clearance holes for bolts on the Wraith III back axle.
| Identifier | ExFiles\Box 7\3\ X 602 Axle Rear-page37 | |
| Date | 19th March 1937 | |
| EW. 602. c. E.{Mr Elliott - Chief Engineer} Rs.{Sir Henry Royce's Secretary} Bm. HPS.{Horace Percy Smith - Experimental Factory Mgr} E/HDY.{William Hardy}1/HP.19.3.37. Wraith III Back Axle. Further to E/HDY.{William Hardy}5/HP.17.3.37, we should have remarked that the use of clearance holes for the bolts between the axle tube and the side plate and the side plate and the centre casing should be applied to offside of the casing as well as to the nearside. E/HDY.{William Hardy} | ||