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⏲️ Flight Test Timeline

Date/Time

Action

Notes

10:00

arrive bay

12:30

setup test and get ready to go

12:40 ~1:10

wait for the weather

1:10

first take off

1:20

second takeoff

1:30

Fixed the prop

1:40

return to service flight

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💻 DEBRIEF

Flight test debrief report

  • Please upload the picture to media digest!!!

    • updated thanks a lot

  • Weather is a huge thing

    • Glad doesn’t risk and fly in heavy rain

    • Next time plan ahead of time

  • A prop just break during transportation

    • suspect overtighten issue

    • replace one props

Card 1 Test 1

Info

Flight planning

  • Take-off, full stick deflection, and engage autotune

Flight test card requirements/objectives Performance

Panel
bgColor#E3FCEF

Control performance & payload situation

  • Control feels OK to Yuchen Lin in althold and loiter

Note

Identified issue

  • Autotune does not start (drifting)

  • wait for the weather to be clear

    • next time need better planning

Warning

Issue need to be RCA

  •  

 

Card 1 Test 1 retry 2

Info

Flight planning

  • Take-off, full stick deflection, and engage autotune

Flight test card requirements/objectives Performance

Panel
bgColor#E3FCEF

Control performance & payload situation

  • Control feels OK to Hardy Yu , report drifting a lot issue in loiter (maybe setting and stick center)

Note

Identified issue

  • When attempted landing, one prop break and fly out

    • result: instable in landing and crashed

    • no damage to the system

  • The other two prop are having crack

  • Conclusion replace three props in total

Warning

Issue need to be RCA

  •  

 

return to service

Info

Flight planning

  • gentle takeoff and control check

Flight test card requirements/objectives Performance

Panel
bgColor#E3FCEF

Control performance & payload situation

Note

Identified issue

  • Two of the regular nuts for props are loosen in the flight are cause thrust lost

    • result leads to crash

Warning

Issue need to be RCA

  •  

 

Tip

Did not risk any valuable component and don’t have any issue with the rest of the system

none of the other system got damaged

Warning

Haven’t finish any objective for the day

need seperate session for pilot training

flying props are dangerous

Need to respec the props

Evan Janakievski will be available on 27th → next pilot training session time

Update on July 12th:

Smile Khatri Point out during July 6th flight test, The propeller normally come with a black ring at the bottom of the prop. The reason for the prop failure is that the ring was not installed, and when the motor spins, stress accumulates across the injection moulding edge. [need mech clarification]


Smile Khatri Can you add a photo of the black ring? thanks

The second lesson we learned is that Loctile is not suitable for a prop and might damage the prop. Also, it takes a long time to solidify, so if we use Loctile during flight test, it does not have any effect.