Bristol Titan

The Bristol Titan was a five cylinder air cooled radial engine. It had the same size cylinders as the earlier Bristol Mercury engine, 5.75 in x 6.5 in (843.94 cu in/13.83 L) and produced between 200-240hp. Later versions of the Bristol Titan also used a Farman style reduction gear produced by Gnome-Rhône.

Design and development

The major significance of the Titan was that it was licensed to Gnome-Rhône and became the pattern for the "Gnome-Rhône 5K". In 1927 Gnome-Rhône was looking for ways out of its license agreement with Bristol for the Jupiter engine of 1920 and began to produce the Gnome-Rhône 5K without royalties.

The Gnome-Rhône 5K was built in much greater numbers than the original Bristol Titan. Gnome-Rhône was not satisfied with simply producing Bristol designs under license, and started a major design effort based around the mechanicals of the Titan engine. The results were introduced in 1927 as the K-series, spanning the 260 hp (190 kW) Gnome-Rhône 5K Titan, the 7-cylinder 370 hp (270 kW) the Gnome-Rhône 7K Titan Major, and the 9-cylinder 550 hp (405 kW) Gnome-Rhône 9K Mistral. With the introduction of the K-series, Gnome-Rhône finally ended royalty payments to Bristol. By 1930 they had delivered 6,000 Jupiters, Mistrals and Titans, making them the largest engine company in France.

pecifications (Titan I)

pistonspecs

ref= [Lumsden 2003, p.102.]
type=Five cylinder air cooled radial engine.
bore=5.75 in (146 mm)
stroke=6.5 in (165 mm)
displacement=844 cu in (13.8 L)
length=
diameter=48.4 in (1229.3 mm)
width=
height=
weight=500 lb (227 kg)
valvetrain=Overhead valve
supercharger=
turbocharger=
fuelsystem=
fueltype=
oilsystem=
coolingsystem=Air cooled
power=210 hp at 1,800 rpm
specpower=
compression=5:1
fuelcon=
specfuelcon=
oilcon=
power/weight=0.42 hp/lb

designer=Roy Fedden
reduction_gear=Direct drive, left hand tractor

general_other=
components_other=
performance_other=

ee also

Comparable engines

* Warner Scarab

Related lists

* List of aircraft engines

References

Notes

Bibliography

* Lumsden, Alec. "British Piston Engines and their Aircraft". Marlborough, Wiltshire: Airlife Publishing, 2003. ISBN 1-85310-294-6.