10,000 ft Division of AURC
Body Tube Material
Active Drag System
New Levels of Control
For Recovery and Flight Data
Maximum Thrust from M1060 Motor
To return to the Australian University Rocketry Competition stronger than ever, we plan to build upon our experience at AURC 2019 and launch project Halo for the 10,000 ft division of AURC 2020. Our aim to improve upon our 98.7% altitude accuracy, which earned us second in overall flight performance, will be facilitated by using advanced composite materials as well as complex passive and active avionics. A key differentiator between our 2019 rocket, Project Astra, and Project Halo is the focus on developing a responsive Active Drag System (ADS) which will take simulations and real-time data to actively alter the rocket’s drag profile. Through this ADS technology and our sustained focus on choosing optimal design and construction processes and material selection we are confident in improving on our 2019 AURC results.
Various key design choices influenced Project Halo such as the colour scheme which reflects the halo optical phenomenon found in nature. In addition, a large structure is required to house a 2U CubeSat which will be launched on Project Halo.
Starting from the nose cone, an ogive geometry was chosen for its large internal area which would facilitate the 2U CubeSat. To allow radio frequency signals to communicate with the ground the nose cone will be manufactured in-house from fiberglass and various other sections will be made from lightweight composites. A strong nose cone is essential as Project Halo is projected to reach a maximum velocity of 994 km/h which is 0.8 times the speed of sound!
Further down the rocket, the filament wound carbon fibre epoxy body tube ensures that the rocket will retain rigidity and structural integrity as it accelerates at 6.7 G’s and absorbs the enormous power of the solid fuel motor.
Housed within the body tube is the avionics bay which controls and monitors the rocket’s characteristics. Metrics such as altitude, acceleration direction are analysed by two onboard systems which will be monitored by temperature sensors in the nose cone throughout the flight to eliminate overheating.
The Active Drag System will control the axial velocity by opening three deflector fins. A microcontroller will use algorithms based on real-time barometer, accelerometer and gyroscope data to deploy the ADS fins in the most optimal way to reach 10,000 ft.
Project Halo will be propelled to 10,000 ft by an M1060 motor. Such a motor will produce a maximum thrust of 1490 Newtons which is equivalent to 152 kilograms of pushing force and will burn for 6.86 seconds to produce a total impulse of 7441 Newton-seconds.