Little Rocket Scientists
Hopefully, this story is the last one about failures and
fiascos of the pyrotechnic kind, but then my life might become a
real yawner. We’ll see….
This story is about a fund-raising effort by our ward. It was
held to raise money for the summer camps of our youth. The
bishop asked those who wished to contribute to offer a service
of some kind that would be auctioned off at the fund raiser. I
decided to offer a family rocket science experience. It turned
out to be a popular item in the auction and was purchased by a
young family with 4 aspiring little scientists. Here is a photo
of the family in front of the barn where the rocket was
launched.
First, I went to their house and helped the children build
the rocket. It was an impressive rocket that featured a video
camera at the base, near the fins. It also had a rather
expensive electronic circuit in the nose cone that was designed
to use the earth’s magnetic field to sense when the rocket
reached its peak altitude. Then the circuit would fire an
explosive charge to eject the parachute, allowing the rocket to
float safely back to the ground.
Now, I had already flown this circuit in other rockets. It
worked beautifully, if I do say so myself. It did have one
rather annoying feature, however. The circuit worked by sensing
when the rocket tipped over. This normally happens when a rocket
has fired its motor and then coasts upward until it finally
slows down. The rocket will naturally tip over and come back
down with its nose pointing downward, just like an arrow would.
This means that you must be very careful when preparing to
launch the rocket. Once the circuit has been armed, if you ever
happen to allow the rocket to tip over, it will fire the
explosive charge.
Because this rocket was so large, it was impossible to slide it
onto the launch rail while in a vertical position. The only
solution is to slide the rocket onto the launch rail while the
rail is lying horizontally on the ground. Then the rail is
lifted into the vertical position for the launch. Can you guess
what the problem is? This means that the astute rocket engineer
must disarm the ejection charge, mount the rocket on the launch
rail and then use a ladder to reach the nose cone of the rocket.
By carefully lifting up the nose cone, the ejection arming
switch is then pressed while the rocket is in the vertical
position. Then it is ready to launch.
On the day of the launch, I helped the family do all the
preparations for the final countdown. We placed the rocket motor
in the rocket body and attached the electric igniter. We
attached the video camera to the base of the rocket and tested
it to make sure it was working. We even held a trial countdown
to make sure the chosen launch engineer could correctly count
down from 5 to zero. I mentally went over all the items on the
checklist, but I still had a nagging feeling that I had
forgotten something. Ignoring the feeling as launch day jitters,
we all retired to the launch control area to observe the launch.
Just as the young boy said “… two, one, zero” and pushed the
launch button, I remembered what we had forgotten. Too late….
The rocket roared into the sky and flew beautifully upward at
breath-taking speed. Then, it majestically slowed and finally
nosed over at its peak altitude. This is when the ejection
charge was supposed to fire, but I knew it wasn’t going to
happen. I had totally forgotten to arm the ejection circuit.
Consequently, the rocket came back to earth and smashed into the
ground just like a large lawn dart. DOOOOUUU!! 50 dollars of
delicate rocket circuitry were smashed into oblivion in the
blink of an eye.
Even though I knew exactly what had happened to cause the
failure, I acted puzzled and didn’t explain my terrible blunder
to the family. They never knew what had caused the parachute to
fail to eject, but I didn’t want to ruin their excitement. For
young kids, a crash is just as memorable as a successful flight,
so I suffered in silence as we ran to retrieve what was left of
the doomed rocket. Again, it was a family memory that they will
probably remember forever, so I reasoned that it was worth the
expense in the end.
It’s just so hard to live with my inward shame of yet another
failure. I resolved to someday make it right by redesigning the
ejection system. It kept me scheming and dreaming for years
afterward.