For Details Check out: http://www.crazybuilders.com/item.php?id=000017&type=project_section

# vimeo.com/2503318 Uploaded 3 years ago 5,286 Plays / 5 Likes / 1 Comment

I take the propeller powered skateboard out for a spin and somehow avoid death. The skateboard worked amazingly well and was great fun to ride! The engine was an OS 1.60, more details here: http://www.crazybuilders.com/item.php?id=000014&type=project_section

# vimeo.com/1995507 Uploaded 3 years ago 56.8K Plays / 19 Likes / 4 Comments

Here I put together the propeller powered skateboard. 1 Piece of wood, 1 pair of skateboard wheels, 1 model airplane engine = extreme fun. Check out more at http://www.crazybuilders.com/item.php?id=000014&type=project_section

# vimeo.com/1967086 Uploaded 3 years ago 24.3K Plays / 6 Likes / 2 Comments

We headed out to an airfield to test the air cannons out. The big cannon fired potatoes at over 250MPH and over 600 feet. Check out crazybuilders.com for more videos and info.

# vimeo.com/1892564 Uploaded 3 years ago 240K Plays / 5 Likes / 0 Comments

Here we assemble the cannons. For information about the designs, check out http://www.crazybuilders.com/item.php?id=000002&type=project_section&title=air_cannon or go to http://www.crazybuilders.com

# vimeo.com/1838291 Uploaded 3 years ago 9,465 Plays / 1 Like / 0 Comments