Super Tigre Helicopter Engines

Italian model engine manufacturer already well established by the end of the 60's with a large range of reliable and reputable engines.

1968

Engine range

ST G60F  -  Engine review.  Good powerful engine for the time however ST engines of the period were not renown for decent idle control as their carb lacked development; reason for this 'lateness' was that ST's focus was primarily on non-RC engines.  Cross-flow scavenged but as you will see in the review the engine internals are much smoother compared to their original model showing that the need for 'gas flowing' of an engine was beginning to be considered.

1970

1970 advert

ST60F - General overview and comments on the improving of the design and internal layout.

1972

1972 advert

ST G60 RC - Engine test - Mar 1972

Known as the 'Blue head' engine and looking the same as the previous model but now fitted with the Mag-III carb which finally gave good idle performance.  Cross-flow scavenged with revision to porting giving 1 Bhp @ 13500 Rpm with silencer fitted (5% nitro).  Slightly heavier and not quite as powerful as some but considered good value for money.

1973

Jan 1973 advert

ST G21-46 - Engine test - Aug 1973

Largest model in the G21 range (not sure what G21 denotes though) and fitted with the latest Mag-III carb.  Cross-flow scavenging with good quality polished internal components giving 0.72 Bhp @ 13000 Rpm silenced (5% nitro).

1974

April 1974 advert

1977

ST G60F1 - Engine test - Mar 1977 - ABC with PDP.

Revised model of 'Blue head' engine and this time utilising a carb with a larger bore in order to bring the power up to par with contemporaries.  ABC construction with Cross-flow scavenging and PDP (Perry Directional Porting) has increased the engine output by 45% when comparing un-silenced figures however; the model now comes with an effective (read restrictive) silencer that results in a 20% power reduction to 1.35 Bhp @15000 Rpm (5% nitro) with silencer fitted.

1978

July 1978 advert

 

1988

Helicopter engine range.

S61-H  -  Engine review.

 

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