Ask HN: UK Rescue Rocket Sheds/Houses Information

I'm having trouble googling what a "rescue rocket" is. I support uncovering info connected a video crippled and information during abstraction travel. What does "rocket" mean successful a 1800s context?

I recovered this: https://museum.maritimearchaeologytrust.org/2025/05/29/rocke...

Is it a gunpowder rocket utilized to push a vessel done the h2o alternatively of utilizing rowing oars?

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