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).
Preliminary results of an experimental test on a high-compression Phantom short chassis at Brooklands.
| Identifier | WestWitteringFiles\N\2October1925-December1925\ Scan139 | |
| Date | 14th November 1925 | |
| R.R. 498A (50 H) (D.D. 31, 12-6-25) J.H.D. EXPERIMENTAL REPORT. ORIGINAL. Expl. No. REF: Hs{Lord Ernest Hives - Chair}/Sm2/1G17.1125. To R.{Sir Henry Royce} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} c. to CJ. BJ. c. to RG.{Mr Rowledge} E.{Mr Elliott - Chief Engineer} c. to DA.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} c. to Wor.{Arthur Wormald - General Works Manager} CWB. c. to PN{Mr Northey} BROOKLANDS TEST - NOV. 14TH. 1925. X758 X8710 Preliminary results. These tests were carried out on a high compression (5.2 : 1) Phantom short chassis fitted with a Barker sports type body. The car was fitted with a 17-tooth axle to ensure that it should not be under-geared. The total weight of the car equipped for the tests and carrying two passengers was 2.45 tons. Though of a sporting appearance, the Barker body did not prove to be a marked improvement for speed work. Actually we should say that it increased the maximum speed of the car by about 3 or 4 m.p.h. over a standard body. The main feature of the body was its length, it being exceptionally short. This proved to be rather a disadvantage as there was insufficient weight over the rear axle to prevent wheel spin at high speeds. Possibly the spare wheels carried at the back would give the required result. On the whole, the car held the track well with shock absorbers tightened up, the steering was very good with noticeable absence of shocks even at the highest speeds, there was no sign of wheel wobble. contd :- | ||