First Flight Jitters
Okay, before you go any further. Did you write your phone
number somewhere in or on your rocket? No? Do it!
Secondarily, the outline given here assumes a simple rocket of 12-16" length,
1" diameter and using an A8-3 motor for the first launch. Such a combination
should only achieve 200' to 400' in altitude. As long as the wind isn't more
than 10 mph, you should be okay on a baseball or soccer field. If in doubt,
wait for a nicer day!
Setting Up The Launcher
- Toss some grass straight up into the air and watch to see which way it
drifts. Now that you know the wind direction, the launcher should be placed
in the field so that it is 2/3 of the way toward the upwind direction.
- Before you set up the launcher, be aware that these rockets do ignite a
gunpowder mixture. Flames can reach the ground so avoid locations with dry
dead vegetation that could start a runaway grass fire. If the whole field
is dry, put down something (a damp blanket) to catch sparks. It's also been
suggested that having a hand-pump "super soaker" type watergun on hand during
very dry conditions is a good idea too.
- Put the launcher together and put the safety key on the top of the launchrod.
This prevents an accidental motor ignition as the controller is disabled without
the key. It also may prevent a nasty eye injury from happening.
- If you are still worried about the breeze, you can angle the launchrod
toward the wind, BUT NOT TOO MUCH. Never more than 30
degrees from straight up. The rocket will also turn into the wind on its own.
- Don't forget to put the blast deflector plate over the launchrod.
- Get your launch controller out and unravel its wiring across the ground
at right-angles to any breeze. Go get your range box and carry it away from
the launchpad to where the launch controller is sitting on the ground. This
gets everything, especially the rocket motors, away from any sparks or flame
of liftoff.
- Point out the controller wires to everyone present so they won't trip
over them. Remind yourself not to do the same.
Preparing The Rocket
- If you aren't launching at a club meet, you get to wear the SCO's
(Safety Check Officer) hat. Do a visual check to ensure that all is well on
the rocket. Even these little hobby rockets hit speeds of 100 to 200+ mph!
If anything (decal, fin, etc.) is loose, it'll get ripped right off.
- Your rocket probably has either a streamer or a parachute to bring it back
down in one piece. That recovery equipment needs to be protected from the
fireball of the ejection charge. This is the job of the ejection wadding.
Follow the directions for how much to use, crumple it loosely and stuff it
down into the bodytube. Several people have recommended using cellulose
insulation from lumber or building-supply stores instead of the treated
toilet-paper that Estes sells. For now, you may as well use the wadding
that came with your starter kit, but I recommend using an extra sheet beyond
what is recommended by the instructions. Wadding is cheap, and not using enough
can ruin your rocket in less than 10 seconds.
- Fold your streamer or parachute according to instructions and slide it
into the BT. It must not be crammed in too tight or it'll cause problems.
Fanfold the remainder of your shockcord and place it in the top of the
bodytube and put the nosecone on. It should not fall off if you turn the
rocket upside down, but it should come off easily with a very slight pull.
- Get the motor you'll be using out of its packaging. Use the "
first flight" motor specified by the manufacturer.
One end is plugged but for a small hole, that's the business end that needs
to face the rear of the rocket. The other end of the motor should appear
completely plugged, but that plug may be down inside the motor tube. Insert
the motor and secure it according to the instructions. Some rockets use a
metal retainer, some rely on a fairly tight friction fit using tape. If the
nosecone is supposed to pop off and release a streamer or chute, it's
important that the motor not pop out the back instead. If that were to
happen, your rocket would hurtle to the ground nose-first and attempt to
drill for oil.
- Get the ignitor and handle it gently. Too much bending and pulling on its
wires before it's installed can make it fail to light the motor. Holding the
rocket upside down, put the ignitor into the hole in the motor. It should
bottom-out but don't ram it in. Estes supplies a little plastic plug to put
into the hole too that will hold the ignitor in place. (I don't know about
Quest.)
- Your rocket is ready to be placed on the launchpad.
Preparing For Liftoff
- Remove the launch controller safety key from the launchrod but keep it in
your hand.
- Slide the rocket onto the launchrod through the lugs on the side of the
bodytube. I like my rocket to sit so that the bottom of the motor is about
3" above the blast deflector. That prevents the tail of the rocket from
being scorched by flames reflected from the blast plate. You can put use a
small alligator clip or wrap duct tape around the launchrod to hit the bottom
lug and stop the rocket at this height. Make sure your rocket can slide easily
on the rod right to the top.
- Go to the controller, pick it up and insert the safety key. The "armed"
light or buzzer should come on. If it didn't, there's something wrong with
your launch controller. There's no point in trying to go any further until
the problem is found and corrected. If you have an Estes Electron Beam
controller such as those supplied with the Starter Kits,
go here for troubleshooting tips.
- Now to be the RSO (Range Safety Officer). Survey the launch field, is
everything okay for a launch? Any children or other critters too close for
comfort? Scan the sky for low aircraft. Not much chance you'd hit one with a
minimum motor configuration such as this, but it's good practice for later
when you start launching stronger stuff! An Estes Comanche-3 can can exceed
500 mph and climb to over 2500'.
- Time to put on the LCO's (Launch Control Officer) hat. Count loudly from
5 to 1 and press the launch button! You have to hold the button down until
the motor is lit, or a few seconds go by with no result.
- If all has gone well, take off all the different hats and watch that sucker fly!
