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 specification for the Silver Ripple - Stage 1.
| Identifier | ExFiles\Box 118\1\ scan0378 | |
| Date | 6th January 1944 | |
| BRIEF DESCRIPTION OF SPECIFICATION SPECIFICATION OF SILVER RIPPLE - STAGE 1. ENGINE: 4 CYLINDER - 3 1/4" DIA. BORE - 4 1/2" STROKE 2.457 LITRES - COMP RATIO 6.5:1. CAST IRON INTEGRAL CRANKCASE AND CYLINDERS. HIGH FRONT ENGINE MOUNTING. VANDERVELL MAIN, CONN. ROD AND CAMSHAFT BEARINGS. 2" DIA CRANKPINS. 2.75 DIA JOURNALS. CRANKSHAFT - 5 INTEGRAL BALANCE WEIGHTS. SENIOR RANGE CONN. RODS (MACHINED). RR SPLIT SKIRT PISTON - FLUSH TOP TYPE. LIGHT PRODUCTION RINGS - TIN PLATED. ALUM CYLINDER HEAD - HIGH POWER. CAST ALUM SUMP. A.C. MECHANICAL PUMP ON LH{Mr Haworth} SIDE OF CAR. CARBURETTER - S.U. HORIZONTAL. WATER PUMP - RATIONALISED BUICK TYPE - .8 ENGINE SPEED. 5 BLADE FAN. RADIATOR - 42 m/m MATRIX - RR DESIGN. BONNET - HINGED SIDE AND TOP - TO SUIT RR RADIATOR. EXHAUST SYSTEM - SINGLE BURGESS. ELECTRICAL: INSTRUMENT-BOARD. DYNAMO - LUCAS. DISTRIBUTOR - DELCO. STARTER MOTOR - LUCAS. BATTERY - STD BI. GEARBOX AND TRANSMISSION: SENIOR RATIONALISED GEARBOX. STANDARD BI CLUTCH. PROPELLER SHAFT WITH SMALL JOINTS. RATIONALISED REAR AXLE BUT WITH 4.56:1 RATIO. REAR BRAKES - GIRLING ROD OPERATED. FRONT BRAKES - HYDRAULICALLY OPERATING. BRAKE DRUMS - CAST IRON WITH THIN BACK PLATES. TECALAMIT CHASSIS LUBRICATION. FRAME: FRAME - .064 MATERIAL. FRONT PAN (BENT) - .104. WHEELBASE 9'2". FRONT TRACK 55-5/10 REAR TRACK 58-0/0. WHEELS 4 1/2" x 16". TYRES 6 1/2" x 16". REAR SPRINGS - 50" x 2" WOODHEAD. STEERING - 18" DIA WHEEL (NOT SPRING SPOKES). STRENGTHENED DROP ARM OTHERWISE STD BI. PETROL TANK - 14 GALLON. DASHBOARD - PRESSED STEEL MOUNTED ON HARRIS BUSHES AS BI. FRONT SHOCK DAMPER - 3 BOLT ALUM WITH MODIFIED VALVES. REAR SHOCK DAMPER - GORDON ARMSTRONG IN FRONT OF REAR AXLE WITH CONTROLLED DAMPING. PEDALS - STANDARD BI. COACHWORK: HEIGHT AND WIDTH AS BI. SHARP CORNERS AT FRONT & REAR (AS IRT). WAIST MOULDING LINES SIMILAR TO IRT, MADE SUITABLE FOR BI BONNET. SPARE WHEEL CARRIED AT REAR. REPLACE RM.{William Robotham - Chief Engineer} WYM.{G. Harold Whyman - Experimental Manager} Ey. EV{Ivan Evernden - coachwork}/TD. EV{Ivan Evernden - coachwork}/HH. JNR.{Charles L. Jenner} COPIES TO FJH.{Fred J. Hardy - Chief Dev. Engineer} FJH{Fred J. Hardy - Chief Dev. Engineer}/CTS.{C. Trot Salt - Carburation} WYM{G. Harold Whyman - Experimental Manager}/HN.{F. C. Honeyman - Retail orders} ISSUE NO. 1. COMPILED BY: W.G.G APPROVED BY: [Illegible Signature] DATE: 6-1-44 NO. OF SHEETS: 14 SHEET No.: 1 SPECIFICATION No. - PL 3004 | ||