These included issues with the aircraft's controls, insufficient control authority being present, and in addition there were resonance issues with the airframe that made the XR-1 prone to pilot-induced oscillations.
Pilots still say it is "skittish" to fly, and UAVs of all kinds are much more prone to crashing.Removing the pilot from the cockpit means the UAV has to be wirelessly connected to its controllers by vulnerable data links, whether via satellites or ground-based receivers.
I've always been a bad pilot, prone to over-correcting and experimenting.
In addition, they said, some are so prone to false alarms that pilots have been known to turn them off.
Pilots prone to such problems can make mistakes during a flight, potentially leading to fatal accidents.
While Wi-Fi coverage has become commonplace at airports and major hotel chains, availability elsewhere may be in the form of pilot projects and prone to failures.
In his dissent, Justice Breyer said it was a mistake to require use of a "pilot program" that is "prone to error".
Conclusions: Patients who have a positive ΔIPF are prone to develop clinically significant SIRS in our pilot study.
Investigators have also discovered that the plane's rudder was prone to make large movements with very little effort by the pilot, meaning a pilot could inadvertently swing the plane wildly from side to side.
Another pilot, Stephen A. Luckey, the chairman of the Air Line Pilots Association's security committee, said computers were still too prone to failure to allow them to override human pilots without recourse.
With premixed inlets, the pilot-scale reactor is prone to extinguish.
