I found an article about high altitude UAVs, and the Rotax 912 modification for Raptor UAV is mentioned here:
http://www.cre8tivenergy.com/uav.htm
(Quite interesting two stage turbo installation)

I found an article about high altitude UAVs, and the Rotax 912 modification for Raptor UAV is mentioned here:
http://www.cre8tivenergy.com/uav.htm
(Quite interesting two stage turbo installation)

Here is the link to information about this very interesting engine:

http://www.apsu-hks.com/HKS_APSU_-_HKS_700T.html

Some information about the new 80 hp turbocharged fuel injected HKS 700 can be found from here: 

Ilmailu.org forum HKS700 80 hp turbo thread (in Finnish)