World Surveillance Group Inc (fka WSGI)

[Renaissance]

Great post! I was going to mow the lawn but decided to chase the rabbit down this hole "hybrid propulsion system similar to types presently under development by the USAF"

Long paper but interesting read on some of the hybrid propulsion systems being developed

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&cad=rja&uact=8&ved=0CC0QFjAB&url=http%3A%2F%2Fwww.dtic.mil%2Fcgi-bin%2FGetTRDoc%3FAD%3DADA517586&ei=zdtXU_TbE8jSsASFgYGYCg&usg=AFQjCNHWwXSIrgeYzbKoCSwNG82295nmNA&bvm=bv.65177938,d.cWc

ANALYSIS OF HYBRID-ELECTRIC PROPULSION SYSTEM DESIGNS FOR
SMALL UNMANNED AIRCRAFT SYSTEMS

"Three distinct parallel hybrid-electric system designs, each with three unique battery discharging profiles, were analyzed and compared using a constrained static optimization formulation based upon traditional aircraft design equations. Each system combined an ICE sized for cruise speed with an electric motor sized for endurance speed. The nine hybrid variations were
compared using a typical five hour intelligence, surveillance and reconnaissance mission profile for a UAS with a maximum gross takeoff weight of 13.6 kg (30.0 lbf)."