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Amber Composites’ High Temperature Prepreg to be Used on Unmanned Aircraft

20 May 2008

Amber Composites has made available a new high performance prepreg system which is capable of withstanding very high temperatures.

C740 is a flame-retardant Cyanate Ester resin system of medium viscosity which cures at 135°C (275°F), pre-impregnated into high performance fibres such as carbon, glass and Kevlar. Post-cure peak temperatures can be as high as 344°C (651°F). Amber’s C740 was developed for high performance aerospace and automotive applications.

The first commercial application is an Unmanned Aerial Vehicle (UAV) produced by Schiebel. The Camcopter S-100 is a highly versatile autonomous UAV system developed to provide a unique balance between advanced capabilities and operation in tactical environments. The system consists of a compact helicopter aerial vehicle that can be fitted with a wide variety of payloads, tailored to meet diverse user requirements. Amber and Schiebel have been working together for the past five years to develop, test and deploy technologically extremely advanced material for its UAV products, in a constant effort to minimize component weight.

“Our partnership with Amber Composites has exceeded our expectations. In our five years working together, Amber has not only consistently provided excellent high-quality materials, but also useful technical and design guidance”, said Hans Georg Schiebel, the owner of Schiebel. Schiebel’s strategy of decreasing weight has resulted in a UAV with extremely high vehicle performance and payload potential. A technical highlight is the patented centre fuselage, which is designed as composite monocoque, but also serves as fuel tank. Schiebel will be using Amber’s c740 to decrease the weight of the exhaust system and the engine. “Just through the use of Amber’s C740 on these two key areas we are able to decrease the overall weight of the vehicle’s structure by another few percent”, said Carsten Gäbler, Schiebel’s Head of Composite Development & Production.





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