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 poundage measurements of cross steering tubes from two different vehicles.
| Identifier | ExFiles\Box 95\1\ scan0481 | |
| Date | 12th April 1938 | |
| 380 Chassis Section 12. 4. 38 To RM{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} POUNDAGE OF CROSS STEERING TUBES TUBES OFF 32EX (2075 miles). AH (Bronze pads) 2 3/4 LBS + 3 1/4 LBS - 1 1/4 LBS & 3 LBS Average. 2 1/2 lbs. TUBES OFF 35EX (11,826 miles) (Bakelite pads) 1 3/4 LBS + 2 LBS - 2 LBS + 2 3/4 LBS Average 2 1/8 lbs. Record in accordance with HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC.{W. S. Cassel} 5/BA. SA.38 AHFisher | ||