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).
Continued road test report detailing vehicle performance regarding suspension, coachwork, brakes, and engine.
| Identifier | ExFiles\Box 17\3\ Scan184 | |
| Date | 7th March 1928 guessed | |
| contd :- -4- Light bodies in our experience always seem to accentuate wobbling and joggling troubles (see comparison of 10-EX and 7-LC in France). 15-EX is really very good with the short pendulum lever and increased friction, but we really do not need the increased damping for this car at high speeds. SUSPENSION. The road holding, cornering and comfort qualities of this car are remarkable. The Hartfords are invaluable in obtaining the additional damping required on roads where 80-90 m.p.h. can be held for miles on end, and can be slacked off for town work, so avoiding low speed harshness. They also improve the steering at high speeds to a very appreciable extent. We found a setting of 35-40 lbs. all round quite satisfactory. COACHWORK. The body has really stood up astonishingly well. The poor quality material used by Hoopers for the deck fittings caused some trouble. These have to carry the screen weight and the load of the balance springs. The scuttle, tail, doors etc. are in perfect condition. As the body is held down directly onto the rubber in front now, because the springs allowed too much movement, some slight alteration will be required to prevent panel cracks at the front door corners. BRAKES. The axle control and the slightly increased front braking which this permits are both a decided improvement. The front brakes still frequently suffer from a low note groan when pulling up which the dampers do not cure. ENGINE. The behaviour of the engine is most gratifying. contd. | ||