Giant Leap Rocketry T-BOLT User manual

INSTRUCTION MANUAL
T-BOLT
GIANT LEAP ROCKETRY, LLC
Copyright 2006 - 2019 Giant Leap Rocketry, LLC
2831 SE Cornelius Pass Road
Hillsboro, Oregon 97123

T-BOLT 38mm
1
Thank-you and congratulations on pur-
chasing this beautiful high powered
rocket from Giant Leap Rocketry.
-The GLR Team-
THE T-BOLT IS THE PERFECT LEVEL 1 or LEVEL 2 ROCKET!!!
PLEASE BE AWARE THAT THE T-BOLT CAN (DEPENDING ON THE MOTER CHOSEN) GO OVER 6000
FEET; THEREFORE A TRACKING SYSTEM IS RECOMMENDED FOR A SUCCESSFUL RECOVERY.
We at Giant Leap Rocketry, LLC hope you enjoy this rocket. The T-BOLT is carefully engineered to make this
rocket high performance on the one hand, yet efficient to build on the other. We recommend that you take your time,
learn and enjoy. The T-BOLT series is another in a long line of high quality kits from Giant Leap Rocketry, LLC.

T-BOLT...The Perfect Level 1 or Level 2
We provide more details to help with your rocketry education
The T-BOLT is a perfect rocket for a level 1
launch. The T-BOLT is a 38mm minimum di-
ameter rocket. This means that the airframe is
the motor mount tube as well. It is adaptable
down to 29mm motor using the optional 29-
38mm Slimline adapter (ordered separately
From GLR). The T-BOLT can be flown on a
variety of motors to extremely high altitudes.
Be certain your center of gravity (CG) is at
least 1.5 body diameters or more forward of the
center of pressure (CP) when the rocket is fully
loaded and ready for flight!
This is critically important or the
rocket will not be stable in flight.
For example, if your rocket is 1.5” in diameter,
then the CG should be at least 3” forward of the
center of pressure. We provide you with the CP
distance from the tip of the GLR Pinnacle No-
2
T-BOLT shown with the optional high performance FinCan and
optional Nozzle-Shaped Motor Retainer

secone. As long the design remains the same as
provided by GLR, the CP won’t change; but, if
you modify the length of the rocket you will
need to determine the CP again for yourself.
The CG depends on the weight distribution,
which can change depending on your motor
choice or other items that change the weight of
the rocket. You can find the distance of the CG
by balancing the rocket on your finger. If the
CG is too far back, add nose weight. All meas-
urements must be done with a “launch ready”
rocket. This means your rocket is loaded with a
motor, recovery components and any electron-
ics or other accessories you plan to use during
flight. Remember, during launch, the recovery
hardware may shift aft, thus shifting the CG to
an unstable condition. Be sure to allow for this
before flying by loading your recovery compo-
nents aft in order to properly check CG.
Note: Heavier motors shift the CG aft, requir-
ing you to add nose weight. Be sure to check
the CG location prior to launch!!
Specifications:
This rocket comes in both Fiberglass and Mag-
naframe Fiberglass Specs are listed first and Ma-
gaframe listed second.
Fiberglass
Dry Wt. Mass (no motor load) 38.15 oz.
Length: 42 ½” (with Nozzle retainer the length
is 43 ⅛")
Outside Diameter O.D. 1.65”
Inside Diameter I.D. 1.36”
CP=36.7” aft from GLR Pinnacle Nosecone tip
CG should be less than 33” aft of GLR Pinna-
cle Nosecone tip
Motor Mount: 38mm (29mm with adapter)
Parachute: 30”
Magnaframe
Dry Wt. Mass (no motor load) 32.2 oz.
Length: 45 ½” (with Nozzle retainer the length
is 46 ½”)
Outside Diameter O.D. 1.65”
Inside Diameter I.D. 1.36”
CP=39” aft from GLR Pinnacle Nosecone tip
CG should be less than 36” aft of GLR Pinna-
cle Nosecone tip
Motor Mount: 38mm (29mm with adapter)
Parachute: 30”
Recommended motors (motors in italics require
38 to 29mm adapter):
Aerotech 29mm motors: H128, H165, H180,
H210
Aerotech 38mm Motors: I161, I357, I300, I211,
I284, I366, I435, J420, J350
WARNING!!
Flying rockets is potentially dangerous, and
you or others can be injured and/or killed by
the usage of this product. Property damage can
also occur by the usage of this product. In us-
ing this product, you agree to comply strictly
with all safety codes of the Tripoli Rocketry As-
3

sociation and the National Association of Rock-
etry, as well as all local, State and Federal laws.
By using the product, you agree that Giant
Leap Rocketry, LLC, (also in this document
noted as GLR) it’s owners or employees will
not be held legally or financially responsible
for the correct or incorrect usage of this prod-
uct. If you do not agree with these statements,
return the kit in resalable condition to Giant
Leap Rocketry for a refund. By using this kit,
you agree that you have read, understand and
accept these conditions.
PLEASE READ THE SAFETY CODE AND
LIABILITY STATEMENTS AT THE END
OF THESE INSTRUCTIONS.
NOTE: THIS ROCKET IS NOT A TOY
BECAUSE OF THE ROCKETS SIZE AND
WEIGHT IT IS A SERIOUS VIOLATION
OF FEDERAL LAW TO FLY THIS
ROCKET ANYWHERE EXCEPT AT
LAUNCHES SANCTIONED BY THE TRIP-
OLI ROCKETRY ASSOCIATION OR THE
NATIONAL ASSOCIATION OF ROCK-
ETRY WHOSE ORGANIZERS HAVE SE-
CURED AN APPROPRIATE WAIVER
FROM THE FEDERAL AVIATION ADMIN-
ISTRATION. FAILURE TO DO SO CAN
RESULT IN SUBSTANTIAL FINES AND/
OR IMPRISONMENT. DO NOT EVEN
THINK OF FLYING THIS ROCKET ANY-
W H E R E E X C E P T AT C E RT I F I E D
LAUNCHES.
IF YOU HAVE ANY QUESTIONS OR ARE
UNCLEAR REGARDING THE ASSEM-
BLY OR USE OF THIS PRODUCT,
PLEASE CALL GIANT LEAP ROCK-
ETRY, LLC. YOU ARE TOTALLY RE-
SPONSIBLE FOR THE SAFE USAGE OF
THEIS ROCKET. FOLLOW ALL PERTI-
NENT SAFETY CODES AND DIREC-
TIONS AT THE LAUNCH SITE. ALWAYS
WEAR EYE PROTECTION WHENEVER
LOADING EJECTION CHARGES OF
ANY TYPE AND KEEP SPECTATORS
AWAY. MAKE A CHECK LIST TO HELP
YOU PREPARE YOUR ROCKET PROP-
ERLY SO AS NO TO OVERLOOK AN IM-
PORTANT STEP DURING THE EXCITE-
MENT AND STRESS OF PRE-FLIGHT
PREPARATION. IF YOU DO NOT FEEL
READY TO FLY THIS OR ANY OTHER
ROCKET DON’T. Take your time and do it
safely and correctly. REMEMBER, THE
FUTURE OF THIS HOBBY ALONG WITH
THE SAFETY OF THOSE AROUND YOU
IS IN YOUR HANDS.
PARTS LIST:
One-1.5" x 33” Filament-Wound Fiberglass OR
One- 1.5” x 36” Magnaframe
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One-1.5" GLR Pinnacle Nosecone
One- Eye Bolt For the GLR Pinnacle Nosecone
One- 38mm Slimline Retainer Set
One- 38mm Acme FinCan
One- Pack of 2 38mm Acme Rail Guides
One- Twelve foot ¼” Kevlar® Shock Cord
One- KEVLAR® Parachute Heat Protector Pad
One- 30” Parachute
One- Hard Point shock cord attachment
One- Glue stick dowel rod 18" long
One- Assembly Instruction
One- Swivel
STYLE OPTIONS:
A Slimline Nozzle retainer (Pictured on Cover)
and GLR Rail Guide Stand offs are available as
an option.
Disposable Supplies
Needed by the Builder
to Assemble This Kit:
5, 15 or 30 Minute Epoxy or Aeropoxy!
!(Can Be Ordered Separately From GLR)
Mixing Cups and Mixing Sticks!
!(Can Be Ordered Separately From GLR)
J.B. Weld! ! !
!(Can Be Ordered Separately From GLR)
Masking Tape
Tape Measure
Sharp Pencil
#250 Sandpaper
Paper Towels
Latex Gloves !! !
!(Can Be Ordered Separately From GLR)
Rubbing Alcohol or Lacure Thinner
5

NOTE: you MUST use high-quality epoxy and
JB Weld with this kit. Other types of adhesives
are not suitable and will make the rocket unsafe
for flight. You may prefer a slower setting ep-
oxy (30 min.) if you are a novice builder, as this
will allow more time to assemble the rocket.
ASSEMBLY
1. On the 33" long fiberglass or the 36’ long
magnaframe 38mm airframe, with a pencil
mark one end "Forward” and the other end
"Aft” and sand the outside of the airframe up
six inches from the Aft end using 250 grit sand-
paper.
2. Using J.B. Weld, attach the GLR Slimline
Motor Retainer to the AFT end of the motor
tube. You MUST use J.B. Weld because it is
rated for high temperature use, whereas regular
epoxy is not. You could lose the motor if you
do not use J.B. Weld. Allow to fully cure be-
fore moving to the next step. If during your
trial fitting of the GLR Slimline Motor Re-
tainer, the GLR Slimline Motor Retainer seems
a bit too loose, simply place a SMALL amount
of tape on the aft end of the airframe at dis-
tances of about 120 degrees from each other
overlapping the end of the tube. This will snug
up the fit and allow a proper adhesion. Once
the GLR Slimline Motor Retainer is in place re-
move any tape that is exposed on the internal
area of the airframe and discard.
3. With a pencil, mark the tapered end of the
GLR FinCan "FORWARD" and the other end
"AFT". FinCan is short for "fin canister". You
will love the GLR FinCan, it is incredibly
strong and durable and you don’t need to worry
about inter-fin alignment! That is easy, that is
built tough, that is GLR.
6
Shown with optional GLR Bell Slimline Retainer

Slide the GLR FinCan onto the FORWARD
end of the airframe, making sure that the AFT
end of the GLR FinCan goes on first. The
words "FORWARD" and "AFT" on the air-
frame and GLR FinCan should match direction
when the GLR FinCan is in place on the air-
frame.
4. Do not slide the GLR FinCan all the way
on. Instead, leave the GLR FinCan forward on
the airframe so that the AFT end of the GLR
FinCan is about 6” above the GLR Slimline Mo-
tor retainer.
5. Apply Aeropoxy to the area that will be cov-
ered by the GLR FinCan. (This area of the air-
frame should have been lightly sanded in step
1.)
6. Before the epoxy cures, slide the GLR Fin-
Can the rest of the way onto the airframe until
the AFT end of the GLR FinCan butts up
against the GLR Slimline Motor Retainer.
Once in position, clean up any epoxy that
oozed out the AFT end with alcohol and paper
towels. Set upright on your work surface (rest-
ing on the retainer) and allow to fully cure.
7. Next, identify the GLR Hard-point Recov-
ery System Anchor. Place the eyebolt through
the center of the device, and tighten the nut.
There should be a washer on both sides of the
Hard-point. Secure one end of the GLR Kev-
lar® Shock Cord to the eye bolt by tying a fish-
erman’s clinch knot. A secure attachment is
critical at this stage because this mount will no
longer be accessible once it is inserted into the
airframe. Dap a small drop of epoxy on the
knot to prevent it from unraveling. Because Gi-
ant Leap Rocketry, LLC provides heat-resistant
Kevlar® Shock Cord in this kit, rather than ny-
lon, there is no need to wrap the GLR Kevlar®
Shock Cord with masking tape to protect the
GLR Kevlar® Shock Cord from heat.
INSERTING THE GLR HARD-POINT RE-
COVERY SYSTEM ANCHOR INTO THE
AIRFRAME IS TRICKY. READ THESE
NEXT STEPS THOROUGHLY TO UNDER-
7

STAND THE PROCEDURE BEFORE AT-
TEMPTING TO COMPLETE IT.
8. Once the GLR Hard-point Recovery Sys-
tem Anchor is prepared, you must insert the
GLR Hard-point Recovery System Anchor into
the airframe as follows: You are provided a
glue stick dowel. Do not snap it or otherwise
alter the length because it will serve as a meas-
uring guide. Mix some J.B. Weld (do not use
epoxy). Measure the dowel and make a mark
on the dowel at 15” and 16”. Measure and
mark the airframe also at 15” and 16” from the
forward opening of the airframe. (Because Gi-
ant Leap Rocketry uses the finest resins when
fabricating our fiberglass airframes, in good
light you will be able to see through the air-
frame as you insert the GLR Hard-point Recov-
ery System Anchor.) With one hand, hold the
airframe horizontally (i.e., flat, not upright).
With the other hand, dip the glue stick into the
mixed J.B. Weld and insert the glue stick UN-
TIL THE 16” LINE ON THE END YOU ARE
HOLDING IS FLUSH WITH THE FORWARD
END OF THE AIRFRAME (the end opposite
to the fin can). Use care not to touch the inside
of the airframe with the J.B. Weld. Apply the
J.B. Weld in a ring to the interior of the air-
frame. The ring of epoxy should coat the inter-
nal circumference of the airframe from the 16”
to the 15” mark from the forward end of the air
frame.
It is important to avoid getting the J.B. Weld on
other areas inside the airframe, so do the best
you can. You will be able to clean up some
later. Repeat the procedure as necessary until
you have a full-solid ring of J.B. Weld inside
the airframe. Remove glue stick and clean the
J.B. Weld from your glue stick.
Before the J.B. Weld cures within the airframe,
insert the GLR Hard-point Recovery System
Anchor through the FORWARD end of the air-
frame. Hold the GLR Kevlar® Shock Cord and
insert the GLR Hard-point Recovery System
Anchor NUT SIDE IN FIRST, making sure that
the free end of the GLR Kevlar® Shock Cord
points FORWARD, or away from the GLR Fin-
Can. Using the CLEAN glue stick, push the
GLR Hard-point Recovery System Anchor all
the way down until the mark you made on
the glue stick is even with the FORWARD
end of the airframe. Once in place, immedi-
ately take a moistened paper towel with alcohol
or thinner on the end of the glue stick and swab
out the inside of the airframe removing J.B.
Weld where it should not be. This is important
because you do not want your recovery system
hanging up on clumps of J.B. Weld. AVO I D
8

MOVING THE JUST PLACED GLR
HARD-POINT RECOVERY SYSTEM AN-
CHOR.
I M P O R TA N T:
O n c e t h e G L R
Hard-point Recov-
ery System Anchor
is in place, hold
the airframe upside
d o w n w i t h t h e
FORWARD end
pointing to the
ground and the
GLR FinCan (AFT
end) up. This pre-
vents J.B. Weld
from dripping down the motor tube section of
the airframe (which would prevent the insertion
of a motor casing). It is also a good idea to
check that the J.B. Weld is not running down
the FORWARD end of the airframe as well.
This could interfere with your recovery compo-
nents insertion. If J.B. Weld does drip forward
you can clean it as explained above. If the
GLR Hard-point Recovery System Anchor
slides forward and is not stable in the air-
frame, place the airframe in a more horizon-
tal position. Allow the J.B. Weld to fully cure.
9. GLR provides a high quality Kevlar® Para-
chute Heat Shield to protect your parachute
from the heat generated that occurs as a result
of the ejection charge deploying your recovery
sy ste m w he n
y o u r r o c k e t
reaches apogee.
Slide the GLR
Kevlar® Para-
chute Heat
Shield onto the
free end of the
GLR Kevlar®
S h o c k C o r d .
Do not secure
GLR Kevlar®
Parachute Heat Shield to the GLR Kevlar®
Shock Cord; just let the GLR Kevlar® Para-
chute Heat Shield slide freely.
10. Slide the swivel on to the free end of the
GLR Kevlar® Shock Cord - it will be used in
step 13.
11. Screw the eyebolt into the base of the
GLR Pinnacle Nosecone.
12. Tie the free, unused end of the GLR Kev-
lar® Shock Cord to that eyebolt.
13. A dap of epoxy will prevent the knot from
unraveling.
9

14. Grab the swivel and tie a small loop into
the GLR Kevlar® Shock Cord about 36” from
the GLR Pinnacle Nosecone. This loop with
the swivel will be the parachute attachment
point. BE SURE THAT THE GLR KEVLAR®
PARACHUTE HEAT SHIELD IS BELOW OR
AFT OF THE LOOP (ON THE OTHER SIDE
OF THE GLR Pinnacle Nosecone). The se-
quence is a follows: GLR Pinnacle Nosecone,
eyebolt, GLR Kevlar® Parachute Heat Shield,
loop with swivel, shock cord, chute protector,
shock cord and airframe.
15. Carefully remove the parachute from that
poly bag and hold the parachute by the shroud
lines. Center or "even" the lines at the apex
held with your finger. Side the shroud lines to-
gether through the free end of the swivel and
open the shroud lines enough to allow the para-
chute to slide through and knot down onto the
swivel.
The attachment point of the swivel is critical.
When the rocket descends you don’t want the
airframe and GLR Pinnicle Nosecone banging
into each other so there needs to be adequate
and appropriate spacing of the parts. The final
photo in this manual will show how the rocket
will look during the deployment so you can see
how all of the parts are interacting.
RECOVERY SYSTEM PREPARATION
1. To prepare the rocket for flight, insert most
of the GLR Kevlar® Shock Cord into the air-
frame first. Do this by creating accordion
lengths of cord about 3-4" long, then insert into
the tube. Leave about 3-4 feet of cord out.
10

2. Roll up
the para-
chute. Then
slide up the
protector to-
wards the
c h u t e . D o
NOT slide the protector all the way to the
chute, but instead stop about 1 foot away. Then
lay some GLR Kev-
lar® Shock Cord
into the protector,
then lay the chute
in the pad too.
3. Fold the protec-
t o r a r o u n d t h e
chute like a burrito and insert into airframe.
You must position the heat pad so that it pro-
tects the chute from scorching. Fold is as tight
as possible. Should you find the “burrito” to
t i g h t f o r
the air-
f r a m e ,
shake
some corn
starch on
the “bur-
rito” and it should slide much easier.
4. Slide the GLR Pinnacle Nosecone onto air-
frame. The GLR Pinnacle Nosecone should be
snug but not tight onto the airframe. If the
GLR Pinnacle Nosecone is too loose, use a
piece of masking tape on the shoulder of the
GLR Pinnacle Nosecone to snug the fit. If too
tight sand gently with 240 grit sandpaper. Re-
member, the chute is deployed when HOT
gases from ejection charge expand in the air-
frame, popping the GLR Pinnacle Nosecone
off, so you want a snug fit - not to tight, not to
loose.
Attaching the Rail Guides & Spacers
1. Begin by marking a line along the length of
the airframe section. Angle aluminum (1" by
1”) is particularly helpful because when laid on
a tube, it allows one to mark a straight line on a
curved surface. You may want to make it a per-
manent part of your rocket toolbox. Make sure
11

that the line is between two of the fins, other-
wise the fins will interfere with the rail.
2. Measuring from base of the rocket to base of
rail guide, place one rail guide about 8” up
from the aft end of the rocket and the other
about 24". Then trace each rail guide on the air-
frame. Remove rail guides.
3. Mark, with the angle aluminum, the center
of the rail guide spacers.
4. Below are the instructions to attach the rail
guides and spacers if you bought the optional
GLR Slimline Nozzle Retainer and the required
GLR Rail Guide Spacers. The instruction are
exactly the same for both set ups except you
will not use the GLR Rail Guide Spacers if you
did not upgrade your rocket. Lightly sand the
attachment points on the airframe as well as the
GLR Rail Guide and the GLR Rail Guide Spac-
ers for good adhesion. Mix J.B. Weld and at-
tach first the GLR Rail Guide to the GLR Rail
Guide Spacer and then attach the GLR Rail
Guide Spacer and GLR Rail Guide to the points
on the airframe. While curing, sight down the
tube to check for good alignment. It is also a
good idea to place some masking tape on the
rail guides lightly securing them to the spacers
and securing the spacers to the airframe. The
masking tape will prevent a “drooping” of the
guide system as the J.B. Weld sets. It is advis-
able to rest your rocket on a counter so that the
GLR FinCan is hanging off the edge; this will
allow the GLR Rail Guide and the GLR Rail
Guide Spacers upright.
Vent Holes in Airframe - - IMPORTANT!
REMOVE YOUR RECOVERY SYSTEM BE-
FORE COMPLETING THIS SECTION!!!
Because the air pressure is reduced at high alti-
tudes, you will need to relieve the internal pres-
sure in the recovery compartment; otherwise
the GLR Pinnacle Nosecone will pop off the air-
frame during ascent. To avoid this, drill, oppo-
site the rail guides, one 3/32” hole about 13”
back from the tip of the GLR Pinnacle No-
secone, another at 21” from the tip of the GLR
Pinnacle Nosecone. These holes are absolutely
necessary for a safe flight. Do not make the
holes any larger or you will risk reducing the
effectiveness of the ejection charge.
12

Recommendations
With fiberglass, lightly sand the rocket with
240-400 grit paper, prime and sand.
Paint with a good quality paint like Krylon or
an auto engine paint that will withstand the heat
created by the friction during flight.
Finishing with Magnaframe
Protect the Rocket from Zippering.
Zippering is when the ejection charge is too
great and the impact of the airframe and the
shock cord is so violent that the shock cord liter-
ally rips or zips the airframe. To strengthen the
Magnaframe airframe and reduce the potential
for zippering you can place a small amount of
cyanoacrylate (super glue) on the Forward ½”
to 1” of the airframe. Spread the glue on the
outside, inside and edge of the airframe end and
let it set completely. Obtain from your local
hardware store some DAP
Plastic Wood. It doesn't mat-
ter the color. Prime the phe-
nolic airframe with extra thick
filler spray primer. With a
gloved finger, extrude a small amount of the
DAP Plastic Wood and trace the fine grooves of
the Phenolic Airframe and deposit the DAP
Plastic Wood into the groves. Be consrervitive
because all that is not in the grove must be
sanded away. That said, the material does
shrink a bit as it drys, so it must be left a little
high. When the DAP Plastic Wood is com-
pletely set up, sand the airframe to a smooth fin-
ish.
Paint with a good quality paint like Krylon or
an auto engine paint that will withstand the heat
created by the friction during flight.
13

Safety Code and Waiver
Giant Leap Rocketry, LLC (herein referred to
as GLR) has exercised reasonable care in the
design and construction of our products and
carefully inspects every product prior to ship-
ment. However, since GLR cannot control the
use of our products or information provided
once sold, we cannot and do not warrant the
products or information included herewith or
the performance or results obtained by using
our products or information. Our products and
information are provided "AS IS". GLR.
makes no warranties of any kind, either ex-
pressed or implied, including but not limited to,
non-infringement of third party rights, mer-
chantability, or fitness for a particular purpose
with respect to the product and any related pub-
lished materials. To the extent you use or imple-
ment our products or information in your own
setting, you do so at your own risk. In no event
will GLR be liable to you for any damages aris-
ing from your use or, your inability to use our
products or information, including any lost or
damaged property, or other incidental or conse-
quential damages, even if GLR has been ad-
vised of the possibility of such damages, or for
any claim by another party. Lack of care can be
dangerous. By purchasing our materials you
agree to the above conditions and to use our
products at your own risk. You must abide by
the following safety guidelines: (for more info,
see www.tripoli.org The following is a con-
densed version of the NAR/TRA HIGH
POWER SAFETY CODE. The complete code
can be found in the handbooks of the organiza-
tions. 1. Only a person who is a certified flyer
shall operate or fly a high power rocket. 2.
Must comply with United States Code 1348,
"Airspace Control and Facilities", Federal Avia-
tion Act of 1958 and other applicable federal,
state, and local laws, rules, regulations, statutes,
and ordinances. 3. A person shall fly a high
power rocket only if it has been inspected and
approved for flight by a Safety Monitor for com-
pliance with the applicable provisions of this
code. 4. Motors. 4.1 Use only certified com-
mercially made rocket motors. 4.2 Do not dis-
mantle, reload, or alter a disposable or expend-
able high power rocket motor, not alter the com-
ponents of a reloadable high power rocket mo-
tor or use the contents of a reloadable rocket
motor reloading kit for a purpose other than
that specified by the manufacture in the rocket
motor or reloading kit instructions. 5. A high
power rocket shall be constructed to withstand
the operating stresses and retain structural integ-
rity under conditions expected or known to be
encountered in flight. 6. A high power rocket
vehicle intended to be propelled by one or more
high power solid propellant rocket motor(s)
shall be constructed using lightweight materials
such as paper, wood, plastic, fiberglass, or,
when necessary, ductile metal so that the rocket
conforms to the other requirements of this code.
7. A person intending to operate a high power
14

rocket shall determine its stability before flight,
providing documentation of the location of the
center of pressure and center of gravity of the
high power rocket to the Safety Monitor, if re-
quested. 8. Weight and Power Limits. 8.1 En-
sure that the rocket weighs less than the rocket
motor manufacturer's recommended maximum
liftoff weight for the rocket motor(s) used for
the flight. During pre-flight inspection, The
Safety Monitor may request documentary proof
of compliance. 8.2 Do not install a rocket mo-
tor or combination of rocket motors that will
produce more than 40,960 newton-seconds of
total impulse (4.448 newtons equals 1.0
pound). 9. Recovery. 9.1 Fly a high power
rocket only if it contains a recovery system that
will return all parts of it safely to the ground so
that it may be flown again. 9.2 Install only
flame resistant recovery wadding if wadding is
required by the design of the rocket. 9.3 Do not
attempt to catch a high power rocket as it ap-
proaches the ground. 9.4 Do not attempt to re-
trieve a high power rocket from a place that is
hazardous to people. 10. Payloads. 10.1 Do
not install or incorporate in a high power rocket
a payload that is intended to be flammable, ex-
plosive, or cause harm. 10.2 Do not fly a verte-
brate animal in a high power rocker. 11.
Launching Devices 11.1 Launch from a stable
device that provides rigid guidance until the
rocket has reached a speed adequate to ensure a
safe flight path. 11.2 Incorporate a jet deflector
device if necessary to prevent the rocket motor
exhaust from impinging directly on flammable
materials. 11.3 A launching device shall not be
capable of launching a rocket at an angle more
than 20 degrees front vertical. 11.4 Place the
end of the launch rod or rail above eye level or
cap it to prevent accidental eye injury. Store
the launch rod or rail so it is capped, cased, or
left in a condition where it cannot cause injury.
12. Ignition Systems. 12.1 Use an ignition sys-
tem that is remotely controlled, electrically op-
erated, and contains a launching switch that
will return to "off when released.
12.2 The ignition system shall contain a remov-
able safety interlock device in series with the
launch switch. 12.3 The launch system and ig-
niter combination shall be designed, installed,
and operated so the liftoff of the rocket shall oc-
cur within three (3) seconds of actuation of the
launch system. If the rocket is propelled by a
cluster of rocket motors designed to be ignited
simultaneously, install an ignition scheme that
has either been previously tested or has a dem-
onstrated capability of igniting all rocket mo-
tors intended for launch ignition within one sec-
ond following ignition system activation. 12.4
Install an ignition device in a high power rocket
motor only at the launch site and at the last prac-
tical moment before the rocket is placed on the
launcher. 13. Launch Site. 13.1 Launch a high
power rocket only in an outdoor area where tall
trees, power lines, and buildings will not pre-
sent a hazard to the safe flight operation of a
15

high power rocket in the opinion of the Safety
Monitor. 13.2 Do not locate a launcher closer
to the edge of the flying field (launch site) than
one-half the radius of the minimum launch site
dimension stated in Table 1. 13.3 The flying
field (launch site) shall be at least as large for a
given impulse as stated Table 1 of the Tripoli
safety code. See www.tripoli.org<http:
//www.tripoli.org/> . 14. Launcher Location
14.1 Locate the launcher more than 1,500 feet
front any occupied building. 14.2 Ensure that
the ground for a radius of 10 feet around the
launcher is clear of brown grass, dry weeds, or
other easy-to-burn materials that could be ig-
nited during launch by the exhaust of the rocket
motor. 15. Safe Distances. 15.1 No person
shall be closer to the launch of a high power
rocket than the person actually launching the
rocket and those authorized by the Safety Moni-
tor. 15.2 All spectators shall remain within an
area determined by the Safety Monitor and be-
hind the Safety Monitor and the person launch-
ing the rocket. 15.3 A person shall not be
closer to the launch of a high power rocket than
the applicable minimum safe distance set forth
in Table 2 of the Tripoli Safety code. See
www.tripoli.org <http://www.tripoli.org/> . 16.
Launch Operations. 16.1 Do not ignite and
launch a high power rocket horizontally, at a tar-
get, or so the rocket's flight path goes into
clouds or beyond the boundaries of the flying
field (launch site). 16.2 Do not launch a high
power rocket if the surface wind at the launcher
is more than twenty (20) miles per hour. 16.3
Do not operate a high power rocket in a manner
that is hazardous to aircraft. 17. Launch Con-
trol. 17.1 Launch a high power rocket only
with the immediate knowledge, permission, and
attention of the Safety Monitor. 17.2 All per-
sons in the launching, spectator, and parking ar-
eas during a countdown and launch shall be
standing and facing the launcher if requested to
do so by the Safety Monitor. 17.3 Precede the
launch with a five (5) second countdown audi-
ble throughout the launching, spectator, and
parking areas. This countdown is given by the
person launching the rocket, the Safety Moni-
tor, or other flying site operating personnel.
17.4 Do not approach a high power rocket that
has misfired until the safety inter-lock has been
removed or the battery has been disconnected
front the ignition system, one minute has
passed, and the Safety Monitor has given per-
mission for only a single person to approach the
misfired rocket to inspect it. I understand and
will at all times conduct myself with the under-
standing that the above stated risks and safety
procedures; (a) are not necessarily all of the
risks, (b) that even by observing the above pro-
cedures there remain RISKS OF INJURY OR
DEATH from HIGH POWER ROCKETRY, (c)
that the utmost in attention and prudence must
be exercised at all times. By purchasing this pro-
duct(s) from GLR, you agree to: (1) Assume all
of the risks, damages, injury, or even death. (2)
Assume the obligation to exercise the utmost
16

care in pursuit of my activities at this event. (3)
that you must be over 18 years old (for motor
purchase and use). GLR cannot be held respon-
sible for the failure of participants to abide by
safety codes, rules, regulations, etc. By using
the products, you agree to abide by these condi-
tions.
17