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Castech has been involved with the sport aviation industry since 1999 with exports to Australia, South Africa, Europe and North America. We have developed considerable expertise in the manufacture of aircraft engine PSRU’s (propeller speed reduction units).


Our main market is to Supermarine Aircraft based in Texas USA, who manufacture a Spitfire replica aircraft which is sold worldwide.



We supply 2 models of PRSU for use on either a V6 or V8 engine configuration sold by Supermarine. The drives combine casting and precision machining of components to produce a world class product. For more information on Supermarine Aircraft have a look at their website,

Castech was a

finalist in the ANZ Export Awards in 2007 for the Reduction

Drive Units.

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