Cow2's rocketry site
NAR Safety code
Materials. My model rocket will be made of lightweight
materials such as paper, wood, rubber, and plastic suitable for the
power used and the performance of my model rocket. I will not use any
metal for the nose cone, body, or fins of a model rocket.
Motors. I will use only commercially-made, NAR-certified
model rocket motors in the manner recommended by the manufacturer. I
will not alter the model rocket motor, its parts, or its ingredients
in any way.
Recovery. I will always use a recovery system in my model
rocket that will return it safely to the ground so it may be flown
again. I will use only flame-resistant recovery wadding if wadding is
required by the design of my model rocket.
Weight and Power Limits. My model rocket will weigh no more
than 1,500 grams (53 ounces) at lift-off and its rocket motors will
produce no more than 320 Newton-seconds (71.9 pound-seconds) of total
impulse. My model rocket will weigh no more than the motor
manufacturerÕs recommended maximum lift-off weight for the motors
used, or I will use motors recommended by the manufacturer for my
Stability. I will check the stability of my model rocket
before its first flight, except when launching a model rocket of
already proven stability.
Payloads. My model rocket will never carry live animals
(except insects) or a payload that is intended to be flammable,
explosive, or harmful.
Launch Site. I will launch my model rocket outdoors in a
cleared area, free of tall trees, power lines, buildings, and dry
brush and grass. My launch area will be at least as large as that
recommended in the accompanying table.
Launcher. I will launch my model rocket from a stable
launch device that provides rigid guidance until the model rocket has
reached a speed adequate to ensure a safe flight path. To prevent
accidental eye injury, I will always place the launcher so the end of
the rod is above eye level or I will cap the end of the rod when
approaching it. I will cap or disassemble my launch rod when not in
use and I will never store it in an upright position. My launcher will
have a jet deflector device to prevent the motor exhaust from hitting
the ground directly. I will always clear the area around my launch
device of brown grass, dry weeds, or other easy-to-burn materials.
Ignition System. The system I use to launch my model rocket
will be remotely controlled and electrically operated. It will contain
a launching switch that will return to "off" when released. The system
will contain a removable safety interlock in series with the launch
switch. All persons will remain at least 15 feet from the model rocket
when I am igniting model rocket motors totalling 30 Newton-seconds or
less of total impulse and at least 20 feet from the model rocket when
I am igniting model rocket motors totalling more than 30
Newton-seconds of total impulse. I will use only electrical igniters
recommended by the motor manufacturer that will ignite model rocket
motors within one second of actuation of the launching switch.
Launch Safety. I will ensure that people in the launch area
are aware of the pending model rocket launch and can see the model
rocket's lift-off before I begin my audible five-second countdown. I
will not launch my model rocket so its flight path will carry it
against a target. If my model rocket suffers a misfire, I will not
allow anyone to approach it or the launcher until I have made certain
that the safety interlock has been removed or that the battery has
been disconnected from the ignition system. I will wait one minute
after a misfire before allowing anyone to approach the launcher.
Flying Conditions. I will launch my model rocket only when
the wind is less than 20 miles per hour. I will not launch my model
rocket so it flies into clouds, near aircraft in flight, or in a
manner that is hazardous to people or property.
Pre-Launch Test. When conducting research activities with
unproven model rocket designs or methods I will, when possible,
determine the reliability of my model rocket by pre-launch tests. I
will conduct the launching of an unproven design in complete isolation
from persons not participating in the actual launching.
Launch Angle. My launch device will be pointed within 30
degrees of vertical. I will never use model rocket motors to propel
any device horizontally.
Recovery Hazards. If a model rocket becomes entangled in a
power line or other dangerous place, I will not attempt to retrieve
LAUNCH SITE DIMENSIONS
|Installed Total Impulse (N-sec)
||Equivalent Motor Type
||Minimum Site Dimensions (ft.)