Rolls-Royce Archives
         « Prev  Box Series  Next »        

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).
Status report on Wraith III and Wraith Ripple engine units, detailing test status, specifications, and allocation.

Identifier  ExFiles\Box 161a\1\  scan0048
Date  30th August 1939
  
-7-

HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC.{W. S. Cassel}5/BA.30.8.39.

WRAITH III UNITS.

No.1 On test for general development.
No.4.On test for general development.
No.5.Fitted in 28.G.VI.
No.6.Fitted in 27.G.VI.
No.8.Fitted in 25.G.VI - Rm{William Robotham - Chief Engineer}'s car.
No110.In shop removed from 14.B.V. after accident.

Remarks.

To be rebuilt to original specification, replacing any damaged parts, which are to be kept.

WRAITH RIPPLE UNITS.

W.R.No.1.New Unit instructed in HPS{Horace Percy Smith - Experimental Factory Mgr}/WSC.{W. S. Cassel}6/BA.14.4.39.
3.250 dia bore - The main items being,
a.{Mr Adams} Crankcase T.H. in L.5. alloy.
b. Crankcase L.H. Standard.
c. Standard V.C.M. Crankshaft EB.4410.
d.{John DeLooze - Company Secretary} EW.2170 Pistons - Aerolite.
e.{Mr Elliott - Chief Engineer} EW.2179 Cylinder Block.
f.{Mr Friese} EW.2150 Cylinder Liner.
g.{Mr Griffiths - Chief Accountant / Mr Gnapp} Ex.S.1768 Camshaft.
h.{Arthur M. Hanbury - Head Complaints} EB.4845 Exhaust Valves to PD.403.
i. SCD.1030 Oil Filter Ex.S.1259 Assy.
j.{Mr Johnson W.M.} Ex.S.1309/10 Camwheel.

W.R.No.2. Fitted in 12.B.V. for 151000 miles trials, late B.V.No.6.

W.R.No.3. Fitted in 1.R.1 Chassis (late B.V.No.5)

4 Cylinder Unit.

This new unit is being produced by converting one of the existing B.60 Units.

Rm.{William Robotham - Chief Engineer} to allocate a B.60 Unit for convertion - details ready.

continued.
  
  


Copyright Sustain 2025, All Rights Reserved.    whatever is rightly done, however humble, is noble
An unhandled error has occurred. Reload 🗙