Dec 4, 2022 Flight Test

Owned by Anthony Luo
Last updated: 2023-01-12 by Anonymous
4 min read

Flight test for Dec 4, 2022

 

1.1  Overview | 1.2  Required Persons During Test | 1.3  Success criteria | 1.4  Pre-Flight Test Checklist | 2  Flight Test Debrief | 2.1 Motor discussion post-flight

 Overview

Requested by:

Anthony Luo

Required Subteams

Mech, Sysint

Requested Date

Dec 4th

Summary & Goals

System Manager fw flight
CornFlakes quad hover & fixed wing flight

Approved?

Yes/No/Pending

 

 Required Persons During Test

Name

Role

Reason

Name

Role

Reason

 

 

 

 

 

 

 

 Success criteria

Tests

Success Criteria

Requirements

Outcome

Tests

Success Criteria

Requirements

Outcome

  • Describe each test as a bullet

  • Describe what would make a test successful

  • Describe what is needed to do this test

  • Was the test successful? What was achieved (or not achieved)?

 

 

 

 

 

 Pre-Flight Test Checklist

Item

Owner

Function

Due date

Status

Item

Owner

Function

Due date

Status

Batteries Charged

@Anthony Luo

IN PROGRESS / DONE / OTHER

RC_Link Charged

@Anthony Luo

 

 

 

Frame Assembled

@Conall Kingshott @Megan Spee @Nathan Green @Ryan Chan

 

 

 

Props ready

 

 

 

 

RF Comms ready

 

 

 

 

Pilot Free

 

 

 

 

 

 

 

 

 

 

 

 

 

 Flight Test Debrief

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

 

Logging data:

  • 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

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

 

Â