Non-standard Hardy Spicer propeller shaft coupling nuts on Wraith III and Bentley models.
| Identifier | ExFiles\Box 148\4\ scan0068 | |
| Date | 2nd September 1937 | |
| To By. {R.W. Bailey - Chief Engineer} from HPS {Horace Percy Smith - Experimental Factory Mgr} /RH. {R. Hollingworth} c. to Rm. {William Robotham - Chief Engineer} c. to Da. {Bernard Day - Chassis Design} c. to HPS. {Horace Percy Smith - Experimental Factory Mgr} GRY {Shadwell Grylls} 262 HPS {Horace Percy Smith - Experimental Factory Mgr} /RH. {R. Hollingworth} 2/CB.2.9.37. HARDY SPICER PROP. SHAFTS. Wraith III - GW.1673. Bentley - GB.2683. The eight .375 dia. nuts for coupling flange bolts as supplied by Hardy Spicer, have a .312 Whitworth hexagon, i.e. .562 across flats. There is no standard R.R. spanner to fit this size, and we suggest the hexagon be altered to suit a standard R.R. Spanner. HPS {Horace Percy Smith - Experimental Factory Mgr} /RH. {R. Hollingworth} | ||
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).