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Make sure to update the Title following the format “Jan 01, 2020 Flight Test”

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Date/Time

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Mar 29, 2023

Aircraft Assembly

If aircraft assembly is complicated, outline dates of various milestones that should be met to ensure we don't rush to complete work at the last minute.

Mar 31, 2023

Pre-flight Preparation

Apr 1, 2023 Afternoon

Cornflake Validation Flight Test

  • This test will aim for validating cornflakes' normal behaviour under cold weather

  • Testing under normal quad module

  • Testing new VN300 module to replace gps

  • This can reduce the preparation time for Apr 2 since we can get ardupilot configured and system ready

Apr 2, 2023 9:00 am

Required persons for preflight preparation show up at bay

Flight test lead breifly assign task for preparation work

Feel free to not come at 9 if you don’t have a lot workload. During this time get snack if needed

Apr 2, 2023 11:15am

Flight brief from flight test lead

Apr 2 2023 11:30am

Loading onto the Car

Take your water bottle with you. Go washroom before we leave!

Apr2 2023 11:45am

Drive to the test ground

Apr 2 2023 12:00 - 3:00pm

Flight Testing

Apr 2 2023 3:30 pm

Debrief

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Expand
titlePre-Departure Checklist
  •  Take the WREST RC entrance card
  •  Check battery status
    •  Charge if required, otherwise place into flight box
  •  Systems test
    •  Check flight controller orientation
    •  Check motor spin & rotation direction
    •  Check transmitter mappings
    •  Verify communication links (VTX/RX, Controller, Groundstation)
    •  Verify the mission planner is logging data
  •  Only attach props directly before flight (keep off at all other times)
  •  Get snacks
  •  Mission Briefing
    •  Read the flight plan to the team (that was made a week ago)
    •  Purpose of flight
    •  Plan of action
    •  Success criteria
    •  Delegate and brief on flight line roles
    •  Safety Briefing
    •  Key flight characteristics to observe
    •  Key system characteristics to observe
    •  Measurements to be made

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Flight Test Post Mortem

Tip
  • Didn’t crash!

  • Collect sufficient footage for proof of flight

  • Range testing on 1.3GHz was successful with stable video @ 150m altitude

  • Smart about taking risks, made sure to investigate any problems, were cautious with any issues

  • Staged testing approach was effective

  • Batteries did not sag, at the end we were close to 7% capacity

  • Used custom WARG hardware (michael’s buck converters) for the ground station!

  • Effectively communicated with other people at WRESTRC

  • Verified ground video station

  • Got ample footage for CV training with landing pads

Note
Warning
  • ,

RCA for Red Items

Create a RCA and keep it as a child page.

  • Radio protocol usage can still be improved

    • fIgnoring radio call-outs due to communication with Pilot in Command - priority of communication

    • Could alternatively say “standby” to indicate to caller that they cannot be responded to

  • Communication before taking off could be better

  • Priority of flight test: Cornflakes shouldn’t necessarily have to wait for other drones (e.g. the DJI) to get ready

    • Give more callouts (e.g. “starting pre-flight checklists”, “take-off imminent”)

    • yield to cornflakes

  • Practice with DJI drone usage

  • Communication after landing on next steps

    • “All-hold”, “All-clear”

  • Forgot nuts for wings, had to drive back (add to checklist)

  • Radio chatter during Houston flights was a slight problem for PIC

  • Almost forgot Houston props (again)

  • Make sure checklists get published on confluence

  • Servo trims did not save (potentially done by clicking extending trims)

  • All of these items were rectified, but could have likely been rectified beforehand

    • 1.3GHz vtx wire was loose on Houston

    • Ground lead on the video relay was loose at the bay

    • Props were loose on Cornflakes were lose before first flight

    • RFD Harness was loose

  • Fish-eye perspective on Houston downwards facing camera is difficult to perceive distance

  • 4:3 and 16:9 causes image to be stretched on monitors

  • Batteries were almost not charged before we left due to being unbalanced

  • Car battery charger is roughly useless - faster to charge by driving

    • Could charge 3S at 2A max

    • 4x 6S at 1A max

    • Roughly limited to 100W to 120W

  • Communicate at least one other person if leaving the group, even if you’re wanting ‘to go’

  • High vibration on Cornflakes as reported by the flight controller

    • Look into mounting FC on a more stable platform

  • Avionics platform is all on one single platform that’s not really stiff

  • Telemetry wiring was not ready for the flight test

  • Back third of the cabin was destroyed on the flight line, was successful but was necessary

  • Diagnosed an issue last flight test that was only partially addressed

    • Transition was an issue, diagnosed that the only issue was batteries, and not potentially airflow

  • Did not test the Vector-Nav.

  • Did not test waypoint following

  • Did not test autoland

Warning
  • No discussion on action items if crashes,

    • Did not discussion incident procedures

  • Did not achieve 20 m/s transition speed

    • Reached 15 m/s with tailwind (12 m/as TAS)

    • Potentially want to fly on 17 inch

    • Add airspeed sensor to aircraft

  • Signal wire on motor 5 / pusher motor was poor and disconnected during/before flight and was only found out in the sky

    • Add extra PWM/servo wires to the checklist

RCA for Red Items

  • Frying Baby Ratel camera

  • Battery testing using the E-load

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Child pages (Children Display)

Action Items

  •  
  • Mech team to come up with solutions for poor thrust Conall Kingshott Megan Spee

    • look at power usage/current delta during transition

  • Telemetry wiring from ESCs Ethan Abraham

  • Update checklists as in Yellow/Red items Dhruv Upadhyay

  • Address signal wire issues that we faced on the ESC

Other Resources

Booking WRESTRC Field

How to Book the Flight Grounds