top of page
Freespace Operations - Callisto 50
  • Freespace Operations - Callisto 50

    The Callisto 50 has world leading performance with up to 25 kg payload capacity while maintaining single propulsion fault tolerance in the event of a propeller out failure (up to 50 kg TOW). Flight endurance on lithium batteries can exceed 40 mins with <5 kg payload allowance (refer to performance graph for details). A series hybrid petrol-electric ICE range extender & ground power tether system are available to increase flight endurance significantly. (see separate details)
    Ideally suited for heavy lift operations, slung tether payloads, LiDAR surveying, scientific instrument payloads, BVLOS operations and more. The Callisto 50 has full autonomous BVLOS mission capability via ArduPilot autopilot system with long range comms, telemetry & other advanced features.
    The Callisto 50 has been granted CASA Type Rating Approval for standard and tethered operations. Freespace Operations offers full support Australia wide including p projects, custom payload integration, mission planning, consultation, training, maintenance, and more.



      The Callisto 50 is a VTOL multirotor allowing take-off and landing from any suitable platform providing sufficient minimal clearance is available (at least 1 aircraft width each side of the propeller tips). It’s dynamic stability allows operations in 15 - 25 m/s winds up 1500 m above sea level. Flight Modes The Callisto 50 offers 3 basic flight control configurations: - Remote Pilot manual control with multiple autopilot assisted flight modes. - Full autonomous flight modes following internal waypoint navigation. (typical BVLOS scenario) - “Guided Mode” flying where the aircraft is commanded via an external source (eg. Onboard companion computer / server such as a Raspberry Pi with custom navigation software). The flight modes can be changed in real time while the aircraft is flying.

      Payloads – Performance & Configurations

      Callisto 50 offers 2 flight & payload weight configurations for different licenses categories:
      - < 25 kg TOW configuration allows up to 5 kg of payload (dependant on battery configuration)
      - 50 kg TOW configuration allows up to 25 kg of payload (dependant on battery configuration)


      Aircraft Type: Multirotor (Octocopter)
      Frame Size: 1400 mm (motor to motor)
      Airframe Weight: 15 kg (including landing gear)
      Propeller: 30-32" (750 - 810 mm)
      Motor: 100 kV, 2.7 kW rated
      ESC: 52.2 V, 80 A rated (100 A peak)
      Battery system: 12s LiPo / Li-Ion packs (50 V)
      Autopilot: ArduPilot autopilot system
      GPS: Moving Baseline Heading Dual RTK system
      LiDAR: Precision Landing & Terrain Following (<100 m range)
      Pilot Radio: Herelink, Microhard or FrSky with Telemetry
      Telemetry Radio: RFD900 or Microhard system with 4G/LTE option
      Comms Range: 10 – 40 km with suitable antennas
      Aircraft Camera: Various situational awareness & payload camera options
      Take-off Weight: TOW 50 kg rated (single propulsion failure tolerant up to 50 kg TOW)
      Max Effective Payload: 25 kg payload (fully redundant with single propulsion fault tolerance)
      Flight Time: ≥ 45 min (requires suitable Li-Ion battery system to maximise endurance vs payload)
      Flying Speed: > 25 m/s Max, 15-18 m/s Cruise, Max Climb Rate: > 5 m/s, Max Descent Rate: > 5 m/s
      Environmental Conditions: Suitable for all Australian conditions, mining & marine environments
      VTOL: Metal Hull Boat / Moving Platform take-off and landing capable (autonomous)
      Wind Tolerance: 15 m/s (54 kph) with gusts up to 25 m/s (90 kph)
      Environmental Protection: designed to IP 54 (suitable for use in inclement conditions & light rain) Payload Mounting: Quick change mounting system with 12mm carbon rails at 150 mm spacing Payload Power Supplies & Comms Ports: - 5 V (regulated) x 10 A (50 W), 12.0 V (regulated) x 10 A (120 W) - 50 V at 40 A (up to 2.0 kW) [main battery voltage - sagging to 40 V minimum during flight] - Serial port, I2C port, CAN port - Analogue In port (x 2), PWM Servo out port (x 5) - USB connection - HDMI port (Herelink radio/telemetry/data option) - Ethernet port (Microhard radio/telemetry/data option)

    bottom of page