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).
Spring weight calculations for a Phantom II, chassis 7-GN, for the Marquis de Viana.
| Identifier | ExFiles\Box 47\2\ Scan443 | |
| Date | 12th December 1930 | |
| Hd{Mr Hayward/Mr Huddy}/SB.{Mr Bull/Mr Bannister} x 4117 BY/HEB{H. Biraben}14/M.12.12.30. [STAMP: RECEIVED 13 DEC 1930] PHANTOM II. CHASSIS 7-GN. ("K2"SERIES). MARQUIS DE VIANA. With reference to Hd{Mr Hayward/Mr Huddy}/SB{Mr Bull/Mr Bannister}3/KH.11.12.30, you stated that 1400-Wide lbs. Rear Springs, should be fitted, we agree exactly with this, our calculated figure being 1434 lbs. which should give a clearance of 4.100". At the time the springs were specified for this Chassis 16.12.29, as 1200 lbs. the following points were not allowed for. Experimental springing being fitted on Cars.- (all Countries) (A) 50 lbs. for settling. (B) Continental Allowance. (C) The Rear Springs were kept down approximately 100 lbs. below the calculated weight. BY/HEB{H. Biraben} HEB{H. Biraben} | ||