hobbsyoyo
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- Joined
- Jul 13, 2012
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- 26,575
I used that to look up how to pronounce ullage last week and I hate it. Also I've been saying it wrong for a decade...
Ullage is the space inside a propellant tank that is empty or filled with buffer gas instead of propellant. As the tank drains, the ullage increases and you have to continually backfill it or the tank will squeeze itself closed like a can of soda inside a vice.
Ullage is the space inside a propellant tank that is empty or filled with buffer gas instead of propellant. As the tank drains, the ullage increases and you have to continually backfill it or the tank will squeeze itself closed like a can of soda inside a vice.