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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).
Revised specification for Peregrine No. 5 unit, detailing part modifications and fitting dates.

Identifier  ExFiles\Box 169\4\  img172
Date  12th May 1933
  
To hs.{Lord Ernest Hives - Chair} from RHC{R. H. Coverley - Production Engineer}/WSC.{W. S. Cassel}

RHC{R. H. Coverley - Production Engineer}/WSC.{W. S. Cassel}3/AP.12.5.33.

PEREGRINE NO.5. UNIT.

Specification of the above Unit is revised as follows:-

Cylinder LOP.E.100861-LeC.3306.

Existing E.100871 Cylinder Head modified to E.100931 to suit strengthened exhaust Valves.
6-New E.100926 exhaust guides fitted 27.3.33.

Valves & Fittings LOP.E.100204-LeC.3306.

Strengthened exhaust Valves E.100928 fitted replacing E.100087.
6-New E.100927 bottom washers.
6-New E.100929 Valve Packings-27.3.33.

Pistons LOP.E.100158.

Hs.{Lord Ernest Hives - Chair}945 Scraper rings - .015 Chamfer.
Hs.{Lord Ernest Hives - Chair}949 Gas rings-next above Scraper rings - fitted 25.4.33.

Camshaft LOP.E.100112.

Hs.{Lord Ernest Hives - Chair}970 Camshaft 110°-fitted-replacing Camshaft E.100863-107°. 25.4.33.

RHC{R. H. Coverley - Production Engineer}/WSC.{W. S. Cassel}
  
  


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