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Hydroaeropropulsion Rocket Research Labs

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Launchers used at the HAPRRL

Our very first launcher. Simple but very effective if the pressure is not too high.

This launcher is rather over-engineered: too complicated and hence somewhat unreliable.

This launcher keeps the bottle in place using a rope.

A few days later, we added some guidance planks because the ropes have a tendency to pull the bottle in all kinds of wrong directions.

This one is based on the popular NASA design.

Another minimalistic variant on the same theme.

A sturdier variant.

Upgrades to the earlier launcher.

NASA design with lever mechanism.