Pteryx UAV

The Pteryx UAV uses a custom derivation of the FLEXIPILOT software, designed by Aerial Robotics engineering group{{Cite web |url=http://www6.aerialrobotics.eu/ |title=Pteryx UAV |archive-url=https://web.archive.org/web/20100910232113/http://www.aerialrobotics.eu/pteryx/ |archive-date=10 Sep 2010 |access-date=2023-01-04 |website=www6.aerialrobotics.eu}} for photomapping purposes and civilian use.

The avionics and flying platform are capable of full operational capability without using an active transmitter or ground station.

File:DSM construction site.jpg

File:Bezmiechowa DSM 3D 2010-05-29 Pteryx UAV.jpg ]]

File:Pteryx UAV - Ortophoto 4.5km2.jpg extracted from data collected during 1h flight]]

• Delivering data for generating digital elevation models using external photogrammetric software and orthorectification procedure{{Cite web |url=http://www.aerialrobotics.eu/pub/bezmiechowa-2010-05-29 |title=Bezmiechowa 3D digital elevation model (AerialRobotics and CMP SfM Web Service) |access-date=2011-01-15 |archive-url=https://web.archive.org/web/20110720153303/http://www.aerialrobotics.eu/pub/bezmiechowa-2010-05-29/ |archive-date=2011-07-20 |url-status=dead }}

• Delivering data for precision agriculture by creating surface maps using mosaicking software
• Construction site and long-range linear mapping (up to around 40 km both ways with 2-hour flight time, reserve included)[https://www.youtube.com/watch?v=MF3stNhSaF0 Motorway mapping mission (YouTube video)]

• Carrying custom research equipment

The camera mount contains either pre-installed compact digital camera or can be exchanged for other equipment.

The camera can be mounted down-looking (nadir photography) or side-looking (oblique photography).

The whole head can be tilted in flight using the RC transmitter, while reducing stabilization travel to one of the sides.

• Flying multiple missions per day without being required to reprogram the autopilot, using waypoints.
• Exchangeable mission package
• Single button operation
• Fully enclosed camera head
• Ability to accommodate a weight range 200g-1000g
• Takeoff by catapult
• Landing through use of a parachute

The aircraft provides positions of the photos taken, and has storage for 8000 events.

Ground-projected positions include the following error margins:

• GPS position error up to 5m.
• Altitude drift (up to 5m per 1 hour of flight)
• Camera head stabilization precision (transients up to 5°)
• Fuselage pitch due to turbulence (up to 8° during hot weather, typically 2° in winter)
• Camera mounting error (typically 1–4° if not calibrated)
• Heading/yaw error (the aircraft performs crabbing in presence of wind)

Typical orthophoto map precision (mean reprojection errors):

• {{Convert|10|cm|in}} horizontal
• {{Convert|30|cm|in}} vertical
• around 2.5m global shift to be removed with a few locally measured points

Several data processing approaches are possible depending on application:

• Direct photo examination
• Non-georeferenced image stitching using free software
• Using free 3D modelling services, as mentioned in examples section
• Importing each photo as ground overlay in Google Earth (semi-automatic with supplied software)
• Using pre-paid service based on cloud computing, yielding a result in hours (delivers orthophotomap and optionally DSM)
• Local processing using specialized GIS software created specifically for large scale image mosaicking (delivers orthophotomap and optionally DSM)

• Fuselage
• 3-section wings with mounting screws
• Horizontal stabilizer section
• Parachute

• LiPo batteries
• Laptop or netbook
• Compact digital camera
• RC controller compliant with local laws (see Radio-controlled aircraft Transmitting and Receiving Frequencies)

Masses:

• Maximum takeoff weight 5.0 kg

Dimensions:{{cite web |url=http://www.aerialrobotics.pl/pteryx/pteryx-dimensions.pdf |title=Pteryx UAV dimensions |accessdate=2011-03-07 |url-status=dead |archiveurl=https://web.archive.org/web/20110903091726/http://www.aerialrobotics.pl/pteryx/pteryx-dimensions.pdf |archivedate=2011-09-03 }}{{cite web |url=http://www.aerialrobotics.pl/pteryx/pteryx-camhead-dimensions.pdf |title=Pteryx UAV - Camera Head dimensions |accessdate=2011-03-07 |url-status=dead |archiveurl=https://web.archive.org/web/20110903091613/http://www.aerialrobotics.pl/pteryx/pteryx-camhead-dimensions.pdf |archivedate=2011-09-03 }}

• Wingspan: 2.8 m
• Length: 1.4 m
• Height: 0.33 m
• Propulsion: brushless DC electric motor and rechargeable lithium polymer battery
• Endurance: 55min with 1 kg payload, 120min with 450g payload

V speeds:

• V_C: around 50 km/h
• V_S: 34–38 km/h depending on TOW
• V_A: 120 km/h
• V_NE: 160 km/h

Flight altitude:

• Service Ceiling 3000m Pteryx Lite
• Service Ceiling 1200m Pteryx Pro
• Cruise altitude 100–520m AGL, 250m typical – dictated by photo resolution

Handling:

• Assembly time: Around 5 minutes.
• Materials: Custom fiberglass composite material covered with durable red gelcoat, carbon fiber and Kevlar reinforcements, wood and other plastics. Wooden or all-composite wings are offered.

• https://web.archive.org/web/20120112174709/http://pteryx.eu/Project webpages

Category:Unmanned aerial vehicles of Poland