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23 days agoThis is the correct answer. With practice you can learn to gauge the sog level by the speed of the bubbles coming to the surface.


This is the correct answer. With practice you can learn to gauge the sog level by the speed of the bubbles coming to the surface.
Why? Done correctly and with supervision solid engine model rockets are very safe and awesome. You don’t even have to light anything, ignition is electric and controlled from a safe distance. Think burn, not boom.