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).
Brief description of the specification for the Silver Ripplet model.
| Identifier | ExFiles\Box 118\1\ scan0016 | |
| Date | 5th January 1940 | |
| SILVER RIPPLET BRIEF DESCRIPTION OF SPECIFICATION ENGINE 6 CYLʳ 3¼ BORE 4½ STROKE 3670 C/C. HIGH FRONT ENGINE MOUNTING CAST IRON MONO BLOCK WITH SIDE EXH VALVES VANDERVELL MAIN & CAMSHAFT BRGˢ CRANK SHAFT, .4% CARBON STEEL 2.750 DIA JOURNALS 2 DIA C PINS SPRING DRIVE R.R. WRAITH TYPE. CONN ROD. COINED ROD VANDERVELL SMALL & BIG END BRGˢ PISTON R.R. SPLIT SKIRT CYLINDER HEAD ALUM HIGH POWER HEAD. A.C. MECH PUMP CARBURETTER STROMBERG DUPLEX DOWN DRAUGHT AIR SILENCER A.C. SINGLE BELT DRIVE WATER PUMP & DYNAMO WITH 5 BLADE FAN EXHAUST FITTINGS SINGLE BURGESS BONNET R.R. TYPE. WIDNEY HINGE & STEEL TOP PLATES GEARBOX 4TH 4.1 3RD 5.3587 2ND 8.5403 1ST 11.9587 OVERALL GEARBOX 4TH DIRECT 3RD 1.307 2ND 2.083 1ST 2.917 2.878 RATIO SYNCHROMESH 4TH 3RD & 2ND REAR AXLE .650 HYPOID 1 5/8 SHAFT SEMI-FLOATING 10/41 RATIO CORNICHE FLYWHEEL 10" CLUTCH GEARBOX STRENGTHENED GEARS PROP! SHAFT AS B I BUT WITH SMALLER JOINTS REAR BRAKES GIRLING ROD OPERATED C.I. DRUMS FRONT BRAKES HYDRAULICALLY OPERATED. C.I. DRUMS FRAME .080 MATERIAL FRAME .072 MATERIAL FRONT PAN. WHEELBASE 9FT 8½ INS FRONT TRACK 5'5.710 REAR TRACK 5'7.700 STEEL WHEEL 6" TYPE 16" x 4 RIM REAR SPRINGS WOODHEAD 50 x 2 STEERING COLUMN WILMOT-BREEDEN STG WHEEL PETROL TANK 16 GALLON. CONCEALED FILLER DASHBOARD. PRESSED STEEL FRONT SHOCK DAMPER 3 BOLT FRONT DAMPER REAR SHOCK DAMPER GORDON ARMSTRONG PEDALS B I ELECTRICAL INSTRUMENT BOARD DELCO DISTRIBUTOR LUCAS STARTER MOTOR HEAD LAMPS BUILT IN WINGS. BATTERY AS B I HORNS BOUGHT OUT OF A TYPE TO SUIT THE MOUNTING UNDER THE COWL OR CATWALK COACHWORK 4 DOOR 4 LIGHT CLOSE COUPLED SALOON. COACHBUILDERS Drg No. PD 494 ¹/₁₆ SCALE COMPILED BY W.L.L. APPROVED BY.{R.W. Bailey - Chief Engineer} DATE 5 - 1 - 40 | ||