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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).
Letter from R. K. Dundas Ltd. discussing an anti-corrosion process for aircraft engine parts.

Identifier  ExFiles\Box 134\5\  scan0142
Date  21th July 1939
  
R.{Sir Henry Royce} K.{Mr Kilner} Dundas.
- LIMITED -

IN ENGLAND:-AERONAUTICAL ENGINEERS AND AGENTS.
CONTRACTORS TO THE ADMIRALTY.
IN INDIA:- AIRCRAFT AGENTS. STOCKISTS AND REPRESENTATIVES OF THE ALLIED TRADES

THE AIRPORT
PORTSMOUTH
TELEPHONE: PORTSMOUTH 6078

CHAIRMAN
LORD RONALDSHAY
DIRECTORS
SIR ALAN J.{Mr Johnson W.M.} COBHAM K.B.E., A.F.C.
L. TETLEY
R.{Sir Henry Royce} D.{John DeLooze - Company Secretary} KING (MANAGING)

BRANCH OFFICE
CIVIL AERODROME
NEW DELHI
INDIA

YOUR REF. Rm{William Robotham - Chief Engineer}/Wym.{G. Harold Whyman - Experimental Manager}6/JH
OUR REF RDK/PJF

21st July, 1939.

Messrs. Rolls Royce Ltd.,
Experimental Department,
DERBY.

Dear Sirs, /1132.

We thank you for your letter of the 18th July, and are pleased to note your interest in the process which we employ against the corrosion of metal parts.

When Mr. Anderson was here, we showed him the process which we are using on aircraft engine mountings which consists of spraying a coat of aluminium on mild steel and subsequently treating with ordinary paint methods.

We have carried out a certain amount of work experimentally with the same process when subjected to varying temperatures, and subsequently allowing to oxidise in the air. We have treated exhaust elbows for aircraft silencers by this method, and have found that the life is considerably increased.

We should not like to give any definite assurance of satisfaction for this process until we have some idea of the changes of temperature to which the expansion chambers, we are considering having treated, are subjected.

[Stamp] NATIONAL SCHEME FOR DISABLED MEN
  
  


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