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Giant Leap Rocketry Firestorm, Instruction Manual, Page: 4 / 20

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Giant Leap Rocketry Firestorm Instruction Manual Download Page 4

your center of gravity (CG) is at least 1.5 body 
diameters or more forward of the center of pres-
sure  (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 nosecone.   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 deter-

mine  the  CP  again  for  yourself.    The  CG  de-
pends  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 measure-
ments  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, requiring you 

to add nose weight. Be sure to check the CG lo-
cation prior to launch!!

Specifications

:

Dry Wt. Mass (no motor load) 71.5 oz. (Please 
allow for slight variation in weight due to differ-
ence in epoxies and paint thickness). 
Length:  71.5” 
Outside Diameter O.D. 2 

¼

” 

Inside Diameter I.D.  2 1/16 ”
CP=61.7” aft from nosecone tip
CG should be less than 58” aft of nosecone tip 
Motor Mount: 54mm (29&38 mm with optional 
adapter)
Parachute: 36” main and 18” drogue 

Recommended 38mm motors: Requires the 
optional SLIMLINE 54/38mm adapter 
Aerotech:

 H123, H148, H242, I161, I357, 

I300, I211, I285, I284, 1366, I435, J420, J350, 
J570

Recommended 54mm motors:

Aerotech: J90, J275, J315, J415, J135, J540, 
K550, K1100, K695

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-
sociation and the National Association of Rock-

3

Summary of Contents for Firestorm

Page 1: ...INSTRUCTION MANUAL Firestorm GIANT LEAP ROCKETRY LLC Copyright 2006 2017 Giant Leap Rocketry LLC 2831 SW Cornelius Pass Road Hillsboro Oregon 97123 ...

Page 2: ...RESTORM CAN DEPENDING ON THE MOTER CHOSEN GO OVER 6000 FEET THEREFORE A TRACKING SYSTEM IS RECOMMENDED FOR A SUCCESSFUL RECOVERY At Giant Leap Rocketry LLC hope you enjoy this rocket The FIRESTORM 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 FIRESTROM series is another in a ...

Page 3: ... OR duel deploy rocket Flying as a duel deploy typi cally allows the rocket to descend until the last few hundred feet at which time a second para chute is deployed slowing the the decent of FIRESTORM to a safe decent speed FIRE STORM is also adaptable down to 38mm motor using the optional GLR Slimline 38mm motor adaptor or even to a 29mm motor using BOTH the GLR Slimline 38mm and 29mm motor adapt...

Page 4: ...ring 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 requiring you to add nose weight Be sure to check the CG lo cation prior to launch Specifications Dry Wt Mass no motor load 71 5 oz Please allow for slight va...

Page 5: ...R 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 WHERE EXCEPT AT CERTIFIED 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 THIS ROCKET FOLLOW ALL PERTI NEN...

Page 6: ... to Assemble This Kit 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 Gloves Can Be Ordered Separately From GLR Rubbing Alcohol Drill with a 1 8 and 1 32 drill bit NOTE you MUST use high quality epoxy and JB We...

Page 7: ...e GLR Slimline Motor Retainer is in place remove any tape that is exposed Be sure that the GLR Slimline Motor Retainer goes onto the tube all the way to the built in shoulder stop of the GLR Slimline Motor Re tainer Sand the body tube if necessary but just enough for a snug tight fit NOTE Be sure that the coarse threaded end of the snap ring type retainer is the part that goes onto the tube The ot...

Page 8: ...not to get any J B Weld on the inside of the body tube 5 Mix some Aeropoxy and spread it on the area between the two pencil marks on the body tube NOT on the inside of the GLR Acme Fin Can Slide the GLR Acme FinCan back on to the tube until the aft end squared off end of the GLR Acme FinCan buts up against the for ward end of the GLR Slimline Motor Retainer Turn the GLR Acme FinCan on the tube to ...

Page 9: ...ld do not use epoxy With one hand hold the airframe horizontally With the other hand dip the glue stick into the mixed J B Weld and insert the glue stick into the FORWARD opening of the AFT airframe UNTIL THE LINE ON THE END YOU ARE HOLDING IS FLUSH WITH THE FORWARD END OF THE AIRFRAME the end OPPO SITE the GLR Acme FinCan Apply J B Weld in a ring to the interior of the airframe The ring of J B We...

Page 10: ...frame upside down with the FOR WARD end pointing to the ground and the GLR Acme FinCan AFT end up This prevents JB 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 JB Weld is not running down the FORWARD end of the airframe as well This could interfere with your recovery components If JB Weld doe...

Page 11: ...en Set these pieces aside and we will get back to adhering the GLR E Bay to the Forward 24 airframe 5 Apply Aeropoxy to the 3 side of the GLR E bay Coupler but stay about away from the pencil mark Insert the GLR E bay Cou pler into the 24 long section of airframe but only to the pencil mark Do NOT apply ep oxy to the inside of the airframe and make sure that any epoxy that is on the edge of the GL...

Page 12: ...int the sled is ready to accept your electronics sold separately 8 We will now pretend that you have at tached your electronics to the sled Take the sled and slide it onto the all thread that is stick ing out of the forward airframe Line up the un used bulkhead with the all thread and secure it with the wing nut Make sure that the bulkhead lines up smoothly with the end of the GLR E Bay 9 Attach a...

Page 13: ...g the GLR Hard Point Recovery System Anchor GLR Kevlar Shock Cord chute protector GLR Kevlar Shock Cord swivel GLR Kev lar Shock Cord GLR E Bay 3 Attach the eye bolt to the Aft end of the Olgive Nosecone as shone in the photo and at tach a quick link bolt to the eye bolt 4 Now we will connect the the GLR E Bay forward body tube and the Nosecone You will connect the pieces in the same order Slide t...

Page 14: ...flight you must pack each of the parachutes into their respective airframe Be gin with the Main parachute Insert most of the GLR Kevlar Shock Cord into the airframe 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 2 Roll up the p a r a c h u t e Then slide up the protector towards the chute Do NOT slide the protector all ...

Page 15: ...h 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 rocketry toolbox Make sure that the line is between two of the fins on the GLR Acme FinCan otherwise the fins will interfere with the rail 2 Measuring from base of the rocket to base of rail g...

Page 16: ... nosecone to the airframe Using tape as described earlier is often fine however depending on the motor chosen you could send this rocket up with so much power that the no secone will vibrate loose or deploy when the drogue chute deploys Using shear pins will re duce the risk of this damage causing early de ployment Using nylon shear pins either nylon screws or 0 060 Styrene rods from a hobby store...

Page 17: ...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 cod...

Page 18: ...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 nece...

Page 19: ...gh 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 surfa...

Page 20: ...ee to 1 Assume all of the risks damages injury or even death 2 Assume the obligation to exercise the utmost 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 19 ...

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