Category Archives: OPA

Revolutionary Coaxial Drone with Diesel Piston Engine – Optionally Piloted Helicopter

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Turbines have an excellent power to weight ratio and as such are the reason is why they are used for helicopters where weight is a critical factor. Nevertheless, their fuel efficiency compared to diesel piston engines is extremely poor, especially for smaller platforms. The diesel piston engine consumes +/- 60% less fuel compared to a turbine with similar specifications and produces up to 40% less CO2 than standard turbine helicopters. Continue reading

Lancair Evolution to Become an OPA

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Spectral Sky is tapping the capabilities of experimental amateur-built kit airplanes to fill the need for lower-cost manned and unmanned aircraft systems (UAS) for aerial data collection, real-time reconnaissance and data delivery for commercial and government customers. Spectral Sky is a commercial spin-off of Unmanned Systems, which does contracting on larger government UAS programs. Continue reading