COACH 30K (2021-2022)


With all students allowed back on campus, the club once again took aim at the Spaceport America Cup 30k COTS challenge. The airframe of the rocket, dubbed “Coach 30k”, is 9.38’ long and has an ID of 4.5”. The airframe is made from 2x2 Twill 3k 7oz T-300 Carbon Fiber Fabric with the exception of the avionics bay which is made from fiberglass. The avionics bay is connected to the forward airframe and the power tube by a polycarbonate coupler; the nosecone is also connected to the forward airframe using a polycarbonate coupler. The rocket has three trapezoidal fins made from a plywood core wrapped with carbon fiber and finished with a tip-to-tip carbon fiber layup. The fins are tabbed for alignment with the internal centering rings. A dual recovery system was implemented with Peregrine 12g CO2 ejection charges for drogue and main parachute deployment. The drogue chute is a 5’ Rocketman standard parachute and the main chute is a 14’ Rocketman standard parachute. The telemetry of the rocket will be monitored by a TeleMega altimeter, a RRC3 altimeter, and a Featherweight GPS tracker; the electronics will be powered by two 3.7V LiPo and a 9V alkaline battery and the electronics will be activated using Featherweight magnetic switches. The rocket’s payload experiment will investigate the shielding effect of steel against muon penetration at altitude. The enclosure for this experimental project houses three identical muon detectors each made with a custom PCB and a “SiPM'' PCB; the enclosure also contains a MS5607 Pressure Sensor to convert pressure readings to altitude. The overall rocket design was analyzed using OpenRocket, SolidWorks FEA, and Ansys Fluent; simulation results were supplemented by ground tests of the recovery and avionics systems.

coach 30k at bayboro
Coach 30k at Bayboro launch

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by Duke AERO

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