Fast-growing use of UAVs worldwide presents an obvious and immediate market for FanWing commercial civilian-use development. Easily adapted for either surface or ground-penetrating surveillance systems and with autonomous almost instant take-off from unprepared surfaces, rooftops or shipboard, FanWing applications include traffic control/security/pest/fire/ecological surveillance, archaeological survey, mine-sweep, hydrology. The heavy lift, slow controlled flight performance coupled with predicted low sound emission of the aircraft will have clear urban and environmental advantages..