Half Cat Launch 2

Half Cat is a liquid bipropellant engine developed by Austin Sennott and Charles Sharp. It was initially developed in the last four months of 2020 and is the first liquid engine developed by UCF students. It has had seven test fires and one launch attempt.

Since the previous launch, the nylon tubing has been swapped out for a high pressure version that can withstand the higher pressures experienced at the FAR site due to elevated nitrous oxide temperature.

Engine Details:

·       3” (75mm) diameter

·       44” overall length

·       Nitrous oxide & isopropyl alcohol

·       Oxidizer pressure: Autogenous from nitrous

·       Fuel pressure: Sliding piston sealed from nitrous

·       Ablative thermal liner (“CHAMBERSAFE”)

·       5 second burn time (+3s tail-off)

·       120 lbf (535 N) thrust