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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).
Specification for the Ripplet Engine unit, listing components and status remarks.

Identifier  ExFiles\Box 118\1\  scan0148
Date  15th March 1940
  
1022
To Rm.{William Robotham - Chief Engineer} from HPS{Horace Percy Smith - Experimental Factory Mgr}/CP.
c.c. Ev.{Ivan Evernden - coachwork} [text struck through]
c.c. Ev{Ivan Evernden - coachwork}/HH. [text struck through]

RIPPLET ENGINE.

We give herewith specification of the Ripplet Unit as we have it up to 12.3.40.

--------------------------

| Specification | Remarks. | REMARKS. |
|---|---|---|
| Crankcase & Bearings. | LOP & Details required to cover the whole section. | Rm{William Robotham - Chief Engineer} [handwritten initial] |
| RE.106 Crankcase & Cyl | No prints received for RE.106 Crankcase. |
| ECD.1257 - Mod Petrol Pump Operation. | Do we require Tappet Covers to ECD.1466? |
| DCD.1408 - Ignition Distributor | |
| ECD.1461 - Revised Dynamo Mtg. | |
| PD.438 - Breather in Crankcase | |
| PL.69. - Rev. Counter Drive | |
| Vandervell Main Bearings. | |
| Crankshaft LOP.RE.135. PD.439. | Fully instructed. 23.2.40. |
| RE.134 Crankshaft. | |
| Spring Drive LOP.RE.213. PD.439. | Fully instructed. 9.2.40. |
| Wraith Type. | |

(continued)
  
  


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