THE HONG KONG GOVERNMENT GAZETTE, MAY 28, 1937.
No. 378.
DIRECTORATE OF AIR SERVICES,
HONG KONG.
Notice to Aircraft Owners and Ground Engineers.
No. 12 of the year 1937.
APPROVED FUEL FOR AERO-ENGINES.
1. The use of special fuels in engines not designed for using such fuels may cause serious engine trouble. The fuel for which a particular engine has been approved is shown in the engine log book. Fuels are not to be used which
or
(1) are inferior in anti-detonation value (octane number) to the approved fuels shown in the engine log book, (2) contain added tetra-ethyl-lead fluid (T.E.L.), unless the engines have been specially approved for T.E.L. fuels.
2. The following are the only engines which have so far been approved for fuels containing T.E.L. :—
Fuel Spec. or Octane T.E.L. (c.c's per
Engine
No. (Min.)
gallon) (Max.)
Lynx IVD
73
5
Genet Major IA
73
5
Serval IVA
D.T.D. 230 (87)
4
Panther IX & X.
D.T.D. 230 (87)
4
Cheetah IX & X.
D.T.D. 230 (87)
4
Tiger VII, VIII & IX.......
D.T.D. 230 (87)
4
Mercury VIS and all higher
Mark numbers.
D.T.D. 230 (87)
4
Pegasus IIIM and all higher D.T.D. 230 (87)
4
Mark numbers.
Perseus II and all higher D.T.D. 230 (87)
4
Mark numbers.
Rapier V & VI
D.T.D. 230 (87)
4
Dagger II & III
D.T.D. 230 (87)
4
Kestrel V and all higher
D.T.D. 230 (87)
4
Mark numbers.
Cascade II
80
1-8
Gipsy Six II
77
4
Gipsy Major IA
Gipsy Six IA
69
4
70
4
Gipsy Six (HC)
D.T.D. 230 (87)
4
HONG KONG, 21st May, 1937.
J. B. NEWILL, Director of Air Services.
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