Late 50's or early 60's water-hose powered rocket?

[billeblurzz]

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[bobby_hamill]

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[bobby_hamill]

Lookup park plastics 2 stage water rocket as both stages are red plastic

 

[billeblurzz]

 

[billeblurzz]

I could not get video on forum. But screenshot shows booster goes up about 2' then separates and sustainer sprays water after very short delay like an igniting rocket engine and takes off quickly to good height. Very effective!