Advanced training

This week, Prof. John spent two days with Skycam UAV in Danger Area 522 doing some advanced training with the Fox UAV.

Drawing on its military origins, the Fox can act as an aerial relay station for communication between two ground control stations.  By the same token, the aircraft can be controlled from either GCS, while the non-controlling unit can monitor the flight.

On the first day, the Fox, now fitted with larger capacity batteries was launched and flown locally from our regular airfield on a farm in D522.  Text communication between two GCS units was tested and control was handed back and forth before the aircraft was landed.  When we took off, the Fox measured the wind speed at between 25 and 30 kph, but by the end of the flight, it was gusting 50kph.  The Fox was able to deal with this, but the conditions would not be suitable for collecting good images.  Lew Woods of Skycam decided to land the Fox in Partial Control mode - the operator has control over heading and throttle setting, while the autopilot assists by stabilising the aircraft.

On the second day, the conditions were much more gentle and Dr. Tim and Prof. John launched the Fox from our regular airfield  in D522, while the away team of Rene and Lew headed to Lew's farm on the edge of D522.  The Fox flew around the airfield conducting a photo survey before we commanded a new waypoint overhead Lew's farm.  The away team were informed that the Fox was en route and they monitored the progress of the flight on their own GCS.  As the Fox flew over the waypoint, we put our GCS into 'Listen' mode and the away team captured the aircraft and took control for the landing.

After a battery change, the Fox was relaunched, conducted a photo reconnaisance of Lew's farm and then sent back to our location.  The procedure was reversed and we took control of the Fox about 1000m out from the target, bringing the aircraft down for a conventional parachute recovery.

The exercise was a total success, with one or two lessons learned about the actual handover process and message relay.  A nice little surprise awaited us as we recovered the Fox and opened the hatch to turn the systems off.  Nestling inside the fuselage was a note with a message "Greetings from the A-team".  Perhaps a rather expensive way of delivering a smiley face, but a nice touch!


GCS is completed

The Ground Control Station has now been completed.  Tim sent me the following pictures yesterday.  You can see that it all fits nicely into a single transport case that is smart, protective and easy to carry.


All the components of the GCS fit neatly into the case and are protected from damage during reasonable handling.  From left to right, the joystick controller, computer, transceiver and charging equipment and leads fit into individual compartments.  The downlink monitor and antenna fit into the lid.


For operation of the GCS, it is not necessary to remove the components from the transport case, though the antenna may be mounted on the roof of a vehicle.  An external power supply, such as a generator or car battery will normally be connected to the case.



Meanwhile, the airframe is being fitted with the autopilot today.  Skycam UAV is still waiting for a few components to be delivered.

GCS nearing completion at Skycam UAV

I received this photograph from Tim yesterday afternoon.  He has almost finished construction of the Ground Control Station - just waiting for delivery of some cables.



The Panasonic Toughbook computer for programming the UAV autopilot is on the left of the case, while the downlink monitor is in the lid.  Connection and charging cables are at right.  The antenna fits into this case too.



The airframe is currently being finished in Piper Cub Yellow with Applied Sciences decals.  Photographed during our TV3 shoot, with painted finish as it came out of the mould:


Here our model shows the assembled airframe on its rigging stand and reiterates our commitment to buying New Zealand teachnology.