AttoPilot RTL



The AttoPilot RTL was released to satisfy customers outside of the USA & Canada. Dont kid yourself with cheaper RTL systems, you can trust this autopilot will bring your aircraft back home in one piece, or even two!

Your not only getting a sophisticated RTL system, it also includes the ground station software. Add radio modems & you will be able to set triggers and loiter on command. The ground station software also includes a moving map & live onboard telemetry.

Sophisticated in design and rich in features it is still easy to use for the hobbiest or the demanding professional. With a hyper threaded 32 bit processor running at 160 MIPS AttoPilot brings the functionality of high end autopilots within reach, and scalability for the future.

Dont forget support, AttoPilot International will quickly reply to your enquiries, send us your log files & more often then not we can suggest improvements and modifications to your parameters.

Specifications and Features:

Small size: ½ ounce control unit 1.5” x 2” x 0.5”, 2 ounce total with GPS and all sensors

7 servos and 5 R/C inputs: 4 flight control + 2 gimbal servos (Pan and Tilt) plus trigger controller. Trigger is unser-configurable as a logic driver or
PWM servo driver. Elevon and V-tail mixing are easy to setup. 100% compatible with all 1-2ms pulse 5V and 3V logic R/C receivers, and the newer
2.4GHz R/C systems

Flight modes (3):

  • Autopilot bypass - Pure Remote radio control
  • Assisted Radio Control (Heading Hold) – Autopilot provides 3-axis stabilization while Radio Control establishes pitch and roll targets
  • Return to Launch

Stabilization system: 50 Hz attitude control with automatic control gain scheduling based on airspeed. Elevator gain scheduling for optimal altitude
control through turns

Onboard data logging: 50+ parameters logged as a comma-delimited .txt file to removable micro-SD media

Two-way telemetry: Downlink of 3 nmea GPS sentences plus a proprietary $ATTO nmea message for live moving map in 3D plus virtual cockpit.
Trigger and loiter options available within a 3km radius of home. User-configurable baud rate from 4800 to 230,400 bps

List of sensors:

  • Pressure (2): Pitot airspeed and Barometric altitude
  • 3-axis horizon sensing with dynamic bias correction using other sensors as cross reference
  • 5Hz GPS with added data smoothing via real time least squares fits
  • Power sensing: 0-53 Volts, 0-92 Amps, 0-4900 Watts. Energy consumption tracked to 210 Amp hours (Ah)
  • Auxiliary analog input for user defined function (temperature probe, 2nd voltage or current sensor, etc…)

GPS: 5Hz update rate, 3m CEP

Triggers:

  • User-defined trigger servo may be either logic driver or PWM servo controller
  • Specify active and rest positions, and trigger duration
  • Loiter with specific radius and direction

Barometric altitude: Estimation to 0.3 ft and real world control to +/- 6 ft. Barometric climb rate estimated to 0.3 ft/s

Maximum Limits:

  • Turn rate: 60 deg/s
  • Pitch and roll rate: 300 deg/s
  • Pitch angle: 60 deg
  • Roll angle: 60 deg