One of the activities I really enjoyed during this week was
building rockets. I hadn’t previously built this type of rocket before, water
bottle rockets (which I still haven’t mastered) and balloon rockets, yes, but
actual rockets with engines that you launch off in a field, was a first for me.
The overall experience and excitement of building reminded me of the book The Rocket Boys, by Homer Hickam. The
rockets we used were by Estes Rockets, a renowned manufacturer of innovative
hobby products for the model rocket industry. Homer made his own out of any
spare parts in his garage that he could find. Regardless, I still had that giddy feeling when putting together my rocket.
The main
parts of a model rocket are the body tube, engine holder assembly, fins, launch
lug, nose cone, shock cord and recovery system. Model rockets are made of
lightweight materials like paper, balsa wood and plastic. The body tube is the main
structure of the rocket which determines the main shape of the rocket itself
and is usually, but not always, long and slender. All other parts are attached
to the body tube in some way. The engine holder assembly holds the engine in
place inside the rocket. Fins when glued on correctly give directional
stability and help the rocket fly straight. The launch lug is the hollow tube
that slips over the launch rod. The nose cone is attached to the top of the
rocket and is tapered to cut through the air more efficiently and reduce drag,
which is the aerodynamic force that opposes motion through the air. The rubber
shock cord attaches the nose cone to the body tube so the rocket is recovered
in one piece. The recovery system returns the rocket to the ground, hopefully.
At least, that’s the plan if the conditions are ideal and the wind doesn’t take
your rocket into the trees.
If you
think about it from a teaching point of view it’s for every action there is an equal and opposite reaction, Newton’s Third Law that plays
out. On launch day, we
were like excited school kids heading over to Homer Hickam field, named for
Homer Hickam, NASA engineer and author of several books including Back to the Moon and The Rocket Boys. Of course Honeywell’s
media team was present to photograph and film the international students. One
by one our rockets were lined up and we were given numbers. One by one we
watched the rockets launch high into the sky - demonstrating principals of
thrust, drag, and just plain awesomeness. One by one we watched as each rocket
reached its maximum height, and then it’s decent back to earth. Some of the
group was even lucky enough to retrieve their rockets, while sadly, others went
to the Rocket Hall of Fame, otherwise known as the trees.
Sadly, my
rocket, which I lovingly christened Comet, was lost forever in the Rocket Hall
of Fame, otherwise known as the trees, along with several of my comrades. I will remember Comet fondly, sniff,
sniff, and the short but explosive time we had together.