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).
From Royce detailing suggestions by Hives to address engine roar and improve the chassis.
| Identifier | ExFiles\Box 74\2\ scan0342 | |
| Date | 3rd November 1921 | |
| ROYCAR DERBY. FROM CHICHESTER. X4244 3.11.21. X.4226 X.4244 X.4227 X.4329 HIVES SUGGEST RECORD SPEED ROAR COMMENCES THEN INCREASE STRENGTH VALVE SPRINGS POSSIBLY VALVE CLOSING UNSTEADILY DOUBLE PORTS WITH INCREASED CAPACITY MAY REDUCE ROAR PRESS FORWARD HEAD AND SPECIAL CAMSHAFT TO MAKE ALL INLET PORTS DOUBLE STOP BRING CHASSIS WITH SHOCK DAMPERS AND IMPROVED CLUTCH+ ROYCE. | ||