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Retired2024

Project Myriad (2024)

Myriad 2024

ARD's first Level 3 rocket in five years: 4th at AURC 2024 in 10,000 ft COTS.

4th

AURC 2024
10,000 ft · COTS propulsion

Stages
Single-stage
Propulsion
Solid
Motor
AeroTech M1845NT-PS
Length
2.36 m
Diameter
160 mm
Apogee
10,000 ft target

The first version of Project Myriad, built as Team 6 for the 10,000 ft COTS category at the Australian Universities Rocket Competition (AURC) 2024. ARD's first Level 3 rocket in five years, designed by a team of over 30 members, it was a 160 mm, 2.36 m fibreglass rocket on the AeroTech M1845NT-PS, with a single-board SRAD flight computer and a payload that used CO2 and liquid nitrogen cooling to make ice cream. ARD placed 4th.

01Anatomy

Take it apart

Scroll to separate the rocket into its components. Each one is explained as it comes into view.

C-01·Nose cone

Nose cone

A fibreglass Haack-series nose cone.

Shape
Von Karman (Haack series)
Material
Fibreglass
Length
400 mm

C-02·Payload bay

Payload bay

A CO2 and liquid nitrogen cooling system, designed to make ice cream.

Technology · Payloads lineage

C-03·Recovery system (parachutes)

Recovery system

Dual-deployment recovery with a drogue and a main parachute.

Technology · Recovery lineage

C-04·Avionics bay

Avionics bay

ARD's single-board SRAD flight computer on a Teensy 4.1, with a COTS EasyMini as backup.

Processor
Teensy 4.1
Backup
EasyMini

Built on

  • L2 Prototype

    The SRAD flight computer was proven with a dual deployment on the May 2024 L2 prototype.

Technology · Avionics lineage

C-05·Motor and propulsion

Motor section

The 900 mm aft airframe carries the 98 mm AeroTech M1845NT-PS.

Motor
AeroTech M1845NT-PS (98 mm, M class)

C-06·Fin can

Fin can

Four trapezoidal fins.

Count
4
Planform
Trapezoidal

02Lineage

What it built on

Every ARD rocket carries hardware, code and hard-won lessons from the ones before it.

  1. From

    L2 Prototype

    Carried over

    Built as the test-bed for this rocket, the L2 prototype validated the fibreglass airframe, nose cone, tip-to-tip fins, SRAD avionics and dual deployment.

    Lessons applied

    Ground testing taught the team to use dog-barf wadding after failed separations.

03Systems

Propulsion and ground

Stage 1 · Motor

AeroTech M1845NT-PS

Propellant
Solid
Impulse class
M

98 mm reloadable motor.

04Results

On the board

  1. 4th

    AURC 2024

    4th place, 10,000 ft COTS

    10,000 ft · COTS propulsion · Myriad 2024

    Source ↗ (opens in a new tab)
Circuit schematic of a payload electronics board built around a Teensy 4.1, with strain gauges and amplifier, pressure sensor, altimeter, temperature sensors and a MOSFET-driven DC motor.
Level 3 payload electronics schematic (Teensy 4.1).

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