Big Quad 2025

Owned by Daniel Puratich
Last updated: 2024-10-31 by Jerry Tian
4 min read

Introduction

Table of Contents

Details

  • Improvements

    • Target additions before AEAC 2025 CONOPs

      • Pegasus 2 airframe is being built to this specifications. Once we get Pegasus 2 working we will retrofit some of the

    • Avionics cover​

    • Harness optimizations​

      • Wire AWG and length optimizations

    • Connector Optimizations

      • MT30s used on the phase leads. One on ESC side, straight harness down the arm, one on the motor side.

      • Using the ESC reversal pads to flip ESC directions

      • Using the

    • Landing gear optimizations

      • trying to increase rigidy and keep a known good failure point​

    • Ensure electronics are mounted properly

      • Use of zipties and tape is permissible as long as it is robust.

      • Lots of components are getting nicer mounts.

  • Maintaining

    • Improve system diagram and theory of operation document.

  • Targeting usage for next year’s competition​

    • need to wait for CONOPs to lock it in though because it could be extremely biased toward fixed wing which is arguably more fun then quad?

Electronics Summary

Desired System

First high level summary of how we want the system to look for 2024!

Maiden Flight

Minimal setup of Pegasus 2 showing the maiden flight configuration of the system.

todo: draw

BOM

Propulsion

Propulsion

Part Function

Manufacturer

Part Name & Link

Qty

Notes

Propellers

T-Motor

MF2211

4 Indiv

2 CW

2 CCW

May be reasonable replaced with other props of similar size/pitch

Motors

T-Motor

Antigravity MN6007II

4 Indiv

See Motor Selection Subpage

ESC

Advanced Power Drives [APD]

120F3[X]v2

4

This can reasonably be replaced by any 12S capable ESC that is able to support BI-directional dshot and > 50A continuous

Power

Power Distribution

Part Function

Manufacturer

Part Name & Link

Qty

Notes

Batteries

Turnigy

Heavy Duty 6200mAh 6s 60C LiPo Pack w/XT90

4

Investigate switching to custom Molicel P45B packs

(4x 9000mAh)

PDB

Advanced Power Drives [APD]

PDB500[X]

1

Could reasonably be replaced with any 12S capable PDB, or with a wire harness with external bucks.

Power Monitor

Holybro

Holybro PM02D High Voltage

1

 

BEC

Mateksys

BEC12s-Pro

1-2

The number of BEC uses depends on the number of subsystems that need voltage isolation which are present

Controls

Flight Control System

Part Function

Manufacturer

Part Name & Link

Qty

Notes

Autopilot

Holybro

Pixhawk 6x + SD Card (logging)

1

The autopilot standard gets revised every so often. The 6x is significantly improved from the 5x, and we recommend it for the competition drone.

GPS

Holybro

Holybro M10 GPS

1 Prim

1 Sec

Unknown

Future RTK system

 

Rangefinder

Benewake

Benewake TF02-i LiDAR CAN

1+

Optical Flow Sensor (OFS)

CubePilot

HereFlow

1

Compass

Holybro

DroneCAN RM3100 Professional Grade Compass

1

Mount far from high current electronics

Disable the Pixhawk’s internal compass

Barometer

N/A

N/A

 

Inside pixhawk

Autonomy computer

Raspberry Pi

Raspberry Pi 5

1

Is mounted on the drone

Peripherals

RF + Peripherals (grouped because it’s small bits of things)

Part Function

Manufacturer

Part Name & Link

Qty

Notes

Control Link & Telemetry Link

HappyModel

EP1 TCXO Dual

1

1 ELRS Diversity RX Airside run in gemini mode.

Custom receiver will be nicer

WARG

ELRS GemX Receiver

1

iFlight

iFlight ELRS 2.4GHz True Diversity RX

1

Video Transmitter

FlyWoo

VTX-1G3

1

Test and choose one of these

Aliexpress No-name

1.3GHz 4W VTX

1

FPV Cameras

Caddx

Baby Ratel 2

2 or 3

Number dep. on pilot pref. TBD

OSD

Holybro

Holybro Micro OSD V2

1

Video Mux

Lumenier

3-Way Multi Camera Video Switcher Board

1

 

Lighting

 

-

https://uwarg-docs.atlassian.net/wiki/spaces/ARCHS22/pages/2555707500

 

NAVLights

-

-

 

Landing Lights

CV Camera

Hupuu

$200 CV Camera

1

https://uwarg-docs.atlassian.net/wiki/spaces/CV/pages/2236613655

IR Camera

Raspberry Pi

SC0873

https://www.digikey.ca/en/products/detail/raspberry-pi/SC0873/17278646

1

Forest fire detection

Groundside

Groundside

Part Function

Manufacturer

Part Name & Link

Qty

Notes

Ground station computer

Lenovo

Thinkpad T490

1

Alternatively: Any computer that can run Mission Planner. Will likely be changed for IMACS box when complete.

1.3G Video RX

FlyWoo

DRX-12A

1

Prefer this

ReadyMade RC

900-1.3 GHz Receiver w/Tuner

1

Available as a backup.

5.8G Video relay (TX)

AKK

TS832 5.8 GHz VTX

1

 

RC Control Link & Telemetry Link

WARG

ELRS Gemini / GemX

1

PREF GEMINI WHEN POSSIBLE

SuperG is COTS Gemini

Getting GemX working will be better

RadioMaster

RadioMaster Ranger FCC

1

BetaFPV

SuperG Nano Transmitter

1

FPV Goggles

-

Pilot Preference

 

 

RC Controller

RadioMaster

TX16s MkII ELRS Mode 2 HALL

2

Video Monitor

-

Generic 5.8 GHz Receiver

 

 

Note: Add wifi router and IMACS when finalized