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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 the Peregrine II, No. 6 Unit, as fitted in Chassis 3-Per:II for trials.

Identifier  ExFiles\Box 169\4\  img184
Date  13th January 1933
  
To Hs.{Lord Ernest Hives - Chair} from RHC{R. H. Coverley - Production Engineer}/WSC.{W. S. Cassel}

RFC/WSC{W. S. Cassel}1/13.1.2.33.

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PEREGRINE II, No.6 UNIT (CHASSIS 3-Per:II.)

We give herewith complete revised specification of the above Unit as fitted in Chassis 3-Per:II. for 10,000 miles trials in France.

PASSED TO TEST 27.1.33. for 10,000 Miles Trials.

Crankcase & Bearings LOP.E.100678.

Complete to the above LOP.incorporating.-
(1) LeC.3291 - Increased Capacity-Ribbed Lower Half
E.100943 Crankcase - L.H.
(2) LeC.3350 - Improved Crankcase Breather Pipe.
(3) LeC.3285 - Front Engine Suspension.
E.100944 Engine Suspn.Arms.
(4) Weir to raise Oil Level in Distributor Drive Housing to sketch with LeC.3353.
In connection with same E.100123 Cross Shaft Bearing has the 4 Oil holes deleted.
(5) Cylinder Liners E.100161 Mark II.I/C.
(6) E.100539/40/1/2 Main bearings-Whitemetal.
(7) E.100244 Tappet Rod for Petrol Pump.

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Crankshaft LOP.E.100740.

E.100643 Crankshaft-2.250 dia; Journals- 4.125 Stroke-V.C.M. Dynamic Balanced.
He.905/6 Larger Balance Weights.
E.100059 Crankshaft Flange to suit Flywheel and Clutch to LOP.G.100500.
E.100946 Nut - Crankshaft Flange.

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