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).
Modifications and performance of hydraulic dampers, stabiliser, and brakes.
Identifier | ExFiles\Box 11\5\ 05-page214 | |
Date | 7th August 1935 | |
-5- HYDRAULIC DAMPERS WITH CONTROL UNIT. DRAIN HOLE MODIFICATIONS MADE, TO INSTRUCTIONS RECEIVED, IN UNIT DRIVE. We had no further trouble with loss of oil from the control unit. The connections of the pipe lines remained tight. The pressure to the dampers was constant. The pressures are as follows :- MPH. MAXIMUM CONTROL. MINIMUM CONTROL. 10 24 lbs. per sq.in. 0 lbs. per sq.in. 20 25.5 " 1 " 30 27.5 " 3 " 40 29.5 " 7 " 50 32.5 " 10 " 60 35 " 14 " 70 36 " 16 " 80 37.5 " 18 " ROLL ROD OR STABILISER TO REAR DAMPERS. M.Sch.4064. This remained intact and restricted rolling when cornering. The springing of the car is good with maximum control at speed. With the minimum control the riding is generally good travelling over pave and rough roads. At times it is inclined to pitch. Travelling over humps with minimum control the rear passengers are pitched off their seats. With maximum control the car rides steadily, and passengers are hardly disturbed. When braking heavily with minimum control the car is apt to dive. FRONT & REAR BRAKES. LOP. G.80993. H.R.3804. 3951. RR.Sch. 510/11/12/15. LOP. G.81059. Linings secured by Bifurcated Rivets. The brakes after the first alteration were good, progressive and quiet in operation. There was an occasional squeak from the servo. Wear of the brake linings was normal - O.S.R. adjusted 10 1/2 full turns. N.S.R. " 10 1/2 " " O.S.F. " 8 " " N.S.F. " 8 " " on their respective levers. | ||