A wet dress rehearsal is a run-through of all the processes required before a rocket launch, up until, but not including, liftoff. What makes this simulation wet is that the rocket’s fuel tanks are filled, then drained once the countdown clock is reset. This is part of a complete episode.
Transcript of “Wet Dress Rehearsal”
I just learned the term wet dress rehearsal.
Do you know this term, Grant?
I mean…
I think I’ve heard this.
Is this a dress rehearsal with makeup?
No.
No?
What is it?
No.
A wet dress rehearsal is a practice run for every stage of a rocket launch without the
Rocket actually leaving the pad. This is a term used at NASA where they actually fill the
Spacecraft’s fuel tanks and they do a full launch countdown and they demonstrate the ability to
Reset the countdown clock and then they drain the tank. So they do everything but, you know,
Send the rocket into space and it’s called a wet dress rehearsal or a WDR. Wow, because they have
The liquid fuel doing its thing except for firing. That makes sense. Yeah, I came across that term and
I thought, what?
That seems like a great term to repurpose in so many different areas of life and industry.
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