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Flight automation
Aerosonde UAV in flight, monitoring the traffic on a country road.
- from www.aerosonde.com
Manual takeoff and landing...
Above and below, from uav_roadmap2005.pdf
Take off and landing for many UAVs is currently performed manually.
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Flight automation |
What follows is an account from the www.aerosonde.com site discussing the first fully automated take-off and flight of the Aerosonde “Millionaire” Unmanned Air Vehicle, in 1997. Since that time, other UAVs have demonstrated fully automated take off, flight and landing.
- from www.aerosonde.com
Our First Fully Robotic Flight
On 22 September, 1997, an important step was taken towards automatic, rather than manual control, of take off and landing. In a one-hour test at Trout Lake in Washington, Aerosonde “Millionaire” flew under autopilot, continuously from launch to touchdown.
Figures show the landing, as plotted on ground-station displays. The aircraft touched down smoothly on the Trout Lake runway, made one small bounce and a large-angle yaw and then decelerated rapidly, through some tall clover. Overall, the performance was quite comparable to a good manual landing.
Although the landing was done under autopilot, it was not quite autonomous guidance onto the runway centre line was done visually from the ground station, rather than being left to the onboard tracker. However the test produced good results in position measurement, by differential GPS.
- from www.aerosonde.com
Height above ground level (top) and offset from the centreline (bottom), during the airborne computer controlled approach and landing of the Unmanned Air Vehicle.
- from www.aerosonde.com
Above is shown the telemetry data for an Aerosonde Unmanned Air Vehicle as it lands, entirely under the control of the onboard flight control computer, which uses information from onboard navigation sensors, including a GPS unit, to manage an accurate landing.
Underside of an Aerosonde Unmanned Air Vehicle, showing the imager in the front and the pusher engine on its swivel mount, to enable the control of the thrust direction.
Above and below from presentation by Dave Grilley on " Certification of an autonomous launch and recovery system" at the UAV 2007 Conference in Paris.
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