Quadshot Technical Specifications

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(All specifications are subject to change at any time)


Airframe

  • Wingspan (Bref): 1.03m (40.7in)
  • Mean aerodynamic chord (Cref): 0.162m (6.375in)
  • Planform area (Sref): 0.1668 m^2 (259in^2)
  • Battery bay: 125mm L x 37mm W x 24mm D (4.9in L x 1.45in W x 0.95in D)
  • Camera/Payload mount: 1/4"-20 threaded
  • Airframe mass: 0.650kg (22.9oz)
  • Battery mass: 0.170kg (6oz)
  • Total mass: 0.820kg (28.9oz)


Propulsion/Actuators

  • Propellers: 0.203x0.114m (8x4.5in), 2x clockwise rotation, 2x counter-clockwise rotation
  • Motors:
    • 4x 27mm diameter
    • 8mm diameter rear mount shaft
    • 1500 kV
  • Motor Controllers: 12A peak
  • Elevon servos: 2x 9-gram type hobby servos

Electrical

  • Flight battery:
    • 3 cell lithium-polymer, 11.1V nominal
    • 2200 mAh nominal capacity
    • 20C peak discharge rate
    • 1C charge rate
  • Flight battery charger (Mocha only): 110-240V, 50/60Hz input, 800mA output
  • Flight battery charge time: up to 3 hours
  • Radio transmitter battery (Mocha only): 8x ‘AA’ type


Performance

  • Approximate flight time: 6-15 minutes (depending on payload and/or maneuvers)
  • Recommended payload: 0.2kg (7 oz) or less
  • Maximum recommended unladen forward flight speed: approximately 25 m/s (90 km/h, 56 mph)

Avionics

Radio Control

Mocha only:

  • Radio transmitter: 2.4 GHz, 6-channel
  • Radio receiver: 2.4 GHz 6-channel main receiver (no satellites)

Kopi Luwak:

Other vehicles:

  • Tx/Rx not included. Spektrum-compatible 2.4GHz DSM2 systems are recommended

Autopilot Systems

Mocha

  • 1x STM32-based Lia autopilot board
  • 1x Aspirin v2.1 IMU (3-axis accelerometer/3-axis gyroscope)

Espresso

  • 1x STM32-based Lisa/M autopilot board (with abs pressure sensor)
  • 1x Aspirin v2.1 IMU (3-axis accelerometer/3-axis gyroscope/3-axis magnetometer; footprint available for MS5611-01BA01 abs baro for greater accuracy)
  • 1x XBee telemetry module (airborne)
  • 1x XBee telemetry module (USB, for ground station)

Kopi Luwak

  • 1x STM32-based Lisa/L autopilot board (with abs and differential pressure sensors; Gumstix Overo mount points)
  • 1x Gumstix Overo AIR Computer-on-Module (SPI linked to Lisa/L)
  • 1x Aspirin v2.1 IMU (3-axis accelerometer/3-axis gyroscope/3-axis magnetometer; footprint available for MS5611-01BA01 abs baro for greater accuracy)
  • 1x XBee telemetry module (airborne)
  • 1x XBee telemetry module (USB, for ground station)