Fun for about a dollar.
This project first appeared in MAKE Volume 03, page 42.
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Are you attaching the air-filled balloon to the blimp? We tried putting it on loosely but it just emptied out while hovering and then hit the ground – it did not move forward. We tried taping it as firmly as possible and blowing it up through the end of the straw but it was hard to get enough force to inflate the balloon. Tips?
OK, we taped the air balloon firmly on and inflated it through the end of the straw (on the rudder side) with a balloon pump. After a few inflations it was easier to inflate without the pump. We had to pinch the end of the balloon to help support the tape seal while we were filling or it would leak. . The kids tended to inhale the air out of the balloon when inflating by straw, so they learned to pinch the straw closed while they took a breath. Hope this helps others!
Did you trim neck of the balloon? With end remained, we couldn’t make it sealed properly.
Hey guys nice project
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