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).
Diagram showing bonnet movement measurements in thousandths of an inch under chassis twist conditions.
| Identifier | ExFiles\Box 12\7\ 07-page164 | |
| Date | 11th June 1931 guessed | |
| BONNET MOVEMENT IN .001 INS NEW SIDE FRONT & OFF SIDE REAR ROAD WHEELS RAISED 3" FROM THE GROUND FIG I PII 4 ENGINE FEET SOLID RAD DASH BONNET RADIATOR O.S N.S Measurements: -2, +8, +2, 0, -15, +10, -12, +12 FIG. I FIG II PII DIAMOND MOUNTING SOLID RAD Measurements: -38, +56, +39, -24, -46, +42, -75, +76 FIG II FIG III PI SOLID REAR ENGINE FEET SHEET ALUM DASH ISOLATED SCUTTLE Measurements: -65, +47, +43, -29, -73, +76, -12, +13 FIG III FIG IV PII DIAMOND MOUNTING CENTRAL MOUNTED RAD. 2 STAY TUBES. Measurements: +1, -2, 0, -4, +1, 0, -4, -1 FIG. IV Faint text at bottom right: 18 | ||