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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).
Programme for radiator matrix tests comparing an American Harrison Vee with a Marston Mark VI matrix.

Identifier  ExFiles\Box 149a\2\  scan0233
Date  9th August 1935
  
X 1280
Hs{Lord Ernest Hives - Chair}/Std.7/KW.9.8.35.

Programme of Radiator Matrix Tests as agreed
Verbally in discussion with Messrs. Marston
on 8.8.35.

(1) Comparison of American Harrison Vee 52 m.m. matrix
with existing Marston Mark VI 52 m.m. matrix -
both matrices to be supplied by us.

Test & Conditions.

(a) (To be carried out with each matrix in turn).

Water flow - 18.0 gallons/minute.
Air flow = 85 m.p.h. car speed or nearest
obtainable.
Water inlet - 74°C.
Air inlet to -
radiator 26°C.

Measure { Water temp. at exit from radiator.
{ Air " " " " " .
{ Pressure of air at each side of radiator.
This will give heat dissipated and air speed through
radiator.

(b) (To be carried out with each matrix in turn).

Water flow - 18.0 gallons/minute.
Air flow = 85 m.p.h. car speed or nearest
obtainable.

Temperature difference between water inlet and
outlet to be 20°F.{Mr Friese} = heat dissipation of 3600 B.T.U's/min.

Air inlet to radiator - 26°C.

Measure { Inlet and exit water temperatures.
{ Air temperature at exit from radiator.
{ Pressure of air at each side of radiator.

This test will give a check on our method of
calculating heat dissipation from our Brooklands
figures.
  
  


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