In 2015, Singapore Polytechnic students built Singapore’s first supersonic ping pong ball bazooka which reached 428.6m per sec (Mach 1.25). A new batch of Mechanical & Aeronautical Engineering students using an improved suction pump and 3D-printed nozzle, achieved a speed of 833m per sec or Mach 2.43 on 7 Jan 2019. This is arguably Singapore’s fastest projectile without the use of combustion or pyrotechnics. The students are Teo Shao Zun, Bryan Chong Jia Xu and Phua Shin Zert, supervised by lecturer Leong Ying Wei.
The Guinness world record then was 806m per sec. The feat was submitted and recognised as the new world record.