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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).
List of required designs for the Silver Ripple model, split into two stages.

Identifier  ExFiles\Box 133\4\  scan0301
Date  22th December 1943
  
COPY

To. Rm.{William Robotham - Chief Engineer} from Ev{Ivan Evernden - coachwork}/JD.{J. Draper - Frames}

c. to. Ev.{Ivan Evernden - coachwork}

Ev{Ivan Evernden - coachwork}/JD.{J. Draper - Frames}6/GAB.22.12.43.

Silver Ripple

The following is a list of designs required, in order that the first five Silver Ripples can be built:-

Engine Mounting - PL.34. complete.
Exhaust System - Design Required.
Radiator & Mounting. - Design Required.
Front Wingstays - Design Required.
Front Aprons. - Design Required.
Head Lamps & Fittings. - Design Required.
Bonnet. - Design Required.
Frame & Fittings. - Design Required.
Steering Tubes. - Details Required.
Shock Dampers (Rear) with ride control - Design Required.
14 Gallon Petrol Tank. - Design Required.
Engine Sump. - Design Complete.
Pendulum Lever. - Design Required.
Water Pump Pulley. - Design Required.
Rear Axle Ratio 4.56 to 1 (Gears required) - Design Required.
Engine 3¼ Bore & 2" Crank Pins - Design Required.
Jacks. - Design Required.
Under Seat Heater. - Design Required.
Smaller Mascot. - Design Required.

The following designs will be required to produce a Stage II Silver Ripple:-

Gearbox
Plain Bearing/Side Shaft - Design Required.
Myth Type Gearbox - Design Required.
Single Piece Propellor Shaft. - Design Required.
Direct Brakes (None Hydraulic) - Design Required.
Change Speed Lever to suit Myth Type Box - Design Required.
New Position of Hand Brake. - Design Required.
Salisbury Rear Axle with B.5. Rear Brakes - Design Required.
Myth Type Rear Dampers. - Design Required.
Cheaper Myth Battery. - Design Required.
Steering Column and Box - Design Required.
Junior Range - Design Required.

Ev{Ivan Evernden - coachwork}/JD.{J. Draper - Frames}
  
  


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