Advanced Rocket Research Center is a Taiwanese space transport research organization headquartered at National Chiao Tung University in Hsinchu City, Taiwan, with a research focus in hybrid rockets. Founded in April 2012, AARC is supported by research grants and private donors through crowdsourcing platforms with number of employees as 45. On 24 March 2014, ARRC test launched the HTTP-3S rocket near the coastlines of Pingtung County. The HTTP-3S rocket was one of the largest hybrid sounding rockets launched by civilians in Taiwan, with a length of 6.35 m, a diameter of 0.4 m, and a weight of 300 kg. It was propelled by a multi-cluster vortex mixed booster hybrid engine which employed nitrous oxide as oxidizer. The engine was capable of delivering 1,000 kgf thrust (with Isp up to 250 seconds). The goal of the HTTP-3S launch campaign was to test functions of all subsystems during the drastic high-speed flight scenario. The flight data gathered during the successful test launch will be used for the second stage rocket design of future dual-stage sounding rockets and the validation of launch site safety measures. On 18 April 2015, ARRC test launched the APPL-9β sounding rocket at the Siangshan Wetland in Hsinchu City. The APPL-9β rocket was propelled by a solid state fuel in the first stage and a hybrid fuel in the second stage. The casing was made of a PLA material by 3D printing. The rocket carried a test satellite made by National Central University.