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Johnny Jetpack is a 7 and a half foot tall puppet/dummy attached to a giant water rocket backpack.
When launched, he obtains heights of 70-90 feet and speeds of 50+ miles per hour in about one second.
When launched, he obtains heights of 70-90 feet and speeds of 50+ miles per hour in about one second.
Mar 10, 2004 9:34 AM
Re: Johnny Jetpack Propulsion Labs
Some of the best ideas sometimes start out as death wishes.
By: vandamonium
