What Does ONBT Stand For?

ONBT stands for Orbiter Neutral Buoyancy Trainer

ONBT, or Orbiter Neutral Buoyancy Trainer, is a specialized facility designed to simulate the microgravity environment of space. It utilizes a large water tank to create buoyancy conditions that allow astronauts to practice and refine their skills in operating spacecraft systems and conducting extravehicular activities (EVAs). By providing a realistic training environment, the ONBT enhances crew preparedness for missions, ensuring they can effectively handle challenges encountered during spaceflight.

Added on 14th April 2008 | Last edited on 16th June 2025 | Edit Acronym