From Wikipedia, the free encyclopedia
The
Bristol Titan
was a British five-cylinder air-cooled
radial engine
, designed and built by the
Bristol Aeroplane Company
in the late 1920s. It had the same size cylinders as the earlier
Bristol Mercury
engine, 5.75 in × 6.5 in (146 mm × 165 mm) (displacing 844 cu in (13.83 L)), and produced between 200?240 hp (150?180 kW). Later versions of the Bristol Titan also used a
Farman
-style reduction gear produced by Gnome-Rhone.
Design and development
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The engine was designed as a five-cylinder radial, to use as many parts of the
Bristol Jupiter
as possible. Cylinders, pistons, articulated connecting rods, crankshaft and other minor parts were interchangeable with the Jupiter.
[1]
The major significance of the Titan was that it was licensed to
Gnome-Rhone
and became the pattern for the
Gnome-Rhone 5B and 5K
. In 1927 Gnome-Rhone was looking for ways out of its licence agreement with Bristol for the
Jupiter
engine of 1920 and began to produce the Gnome-Rhone 5B and 5K without royalties.
Gnome-Rhone was not satisfied with simply producing Bristol designs under licence, and started a major design effort based around the mechanics of the Titan engine. The results were introduced in 1927 as the K-series, spanning the 260 hp (190 kW) Gnome-Rhone 5K Titan, the seven-cylinder 370 hp (280 kW)
Gnome-Rhone 7K
Titan Major, and the nine-cylinder 550 hp (410 kW)
Gnome-Rhone 9K
Mistral. With the introduction of the K-series, Gnome-Rhone finally ended royalty payments to Bristol, the Gnome-Rhone 5K being built in much greater numbers than the original Bristol Titan. By 1930 they had delivered 6,000 Jupiters, Mistrals and Titans, making them the largest engine company in France.
Variants
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- Titan I
- (1928) - 205 hp (153 kW)
- Titan IIF
- Modified valve gear.
- Titan II (Special)
- Titan IV
- (1928) - 205 hp (153 kW), 0.5:1 reduction gear from Bristol Jupiter.
- Gnome et Rhone 5B
- Gnome et Rhone 5Ba
- Gnome et Rhone 5Bc
- Gnome et Rhone 5K Titan
- licence-built Titan II, 230 hp (170 kW)
- Gnome et Rhone 7K Titan Major
- enlarged seven-cylinder Titan with many detail improvements, produced by Gnome-Rhone without licence.
Applications
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Specifications (Titan I)
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Data from
Lumsden
.
[2]
General characteristics
Components
- Valvetrain
:
Overhead valve, 4 valves per cylinder
- Cooling system:
Air-cooled
- Reduction gear
:
None, direct drive, left hand tractor
Performance
See also
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Related development
Comparable engines
Related lists
References
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Notes
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Bibliography
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- Lumsden, Alec.
British Piston Engines and their Aircraft
. Marlborough, Wiltshire: Airlife Publishing, 2003.
ISBN
1-85310-294-6
.
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Gnome rotary engines
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Le Rhone rotary engines
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Gnome et Rhone radial engines
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