Overview

 Required Persons During Test

 Success criteria

 Pre-Flight Test Checklist

 Flight Test Debrief

Attendees: @Anthony Luo @Andy Meng @Nathan Green @Ryan Chan @Megan Spee @Conall Kingshott @Aidan Bowers (Deactivated) @Kayla Chenier

Logging data:

Open

• Pink is altitude

• green, yellow are rear lift motor throttles

• orange, blue are front lift motor throttles

• red is push motor throttle

2 main groups of data: this was 2 separate flights. The first spike was for loitering hovering flight (auto stabilized, moving around slightly). The second was when the push propeller was enabled and the plane was flown in slightly fixed-wing configuration (but we see the lift motors are still providing support).

The altitude drops pretty quickly about 3/4 through the

Open

Rear motors logging data: red is motor 3, green is motor 4. Implies the drone was trying to pitch forward to stabilize itself, and didn’t have enough thrust to maintain this.

1st data logged flight - loiter, hover

2nd data logged flight - transition to fixed-wing, semi controlled landing

Motor discussion post-flight

Hovering in loiter mode: motors close to 100% throttle.

Draw a lot of current (off the charts). The batteries may be sagging due to cold temperature. However, issue remains that there isn’t enough throttle to control the plane well.

1 inch on props, using 6s? Not enough difference. Motors are least efficient when at full throttle.

Hard to find motors that are 6s and can support 100 amps (w/ also considering right voltage).

12S seems like the best (only ) option. We may be able to get 1 extra motor for a full set of new motors.

Also, push motor? The push one draws 60 amp right now (8 something kg of thrust), and the new one is 80 A, likely 10.5kg of thrust. This is in theory. It was pinned at full throttle for the entire fixed-wing flight, so need more thrust on this motor. Propeller pitch and length solutions?

.BIN mission planner file with logging data

Video dump I promise i’ll clean these up later