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Insert the accordion folds into the booster section. Then, on the forward side of the protector (toward 
the avionic bay) lay some shockcord into the KEVLAR® protector, then lay the chute in there too.  
 
                booster                Pad 

 

                                          Av bay            drogue                              Laying cord and drogue in pad 
 
Fold as shown and insert into booster. Attach exposed end of shockcord to avionics bay eyebolt with a 
quiklink.. Now slide booster and upper section together. The drogue system is now packed.  
 

                        

 

Note: Booster and upper section at time of flight should fit such that when the rocket is held upright by 
the upper section, the booster should just begin to slide off. Adjust with tape on launch day if 
necessary.  
 
Moving to the main recovery system, as with the drogue, make a knot and loop in the shroud lines of 
the main chute. Then attach main chute and shockcord to eyebolt in the nosecone with a quiklink. Fold 
main recovery system into upper section in a similar manner as the drogue system. Then insert 
nosecone. The nosecone fit at time of flight should be such that when the rocket is held up by the 
nosecone, the rocket should just begin to slide off the nosecone.  
 

Summary of Contents for Elipse

Page 1: ...Elipse FEATURING THE NEW GROOVE LOK FIN CANISTER SYSTEM GIANT LEAP ROCKETRY INC Copyright 2006 Giant Leap Rocketry Inc www giantleaprocketry com 6061 HIBISCUS DR BATON ROUGE LA 70808 Ph 225 054 0325 ...

Page 2: ...y high altitudes With the optional SLIMLINE 38 29mm adapter you can fly this rocket to more moderate altitudes on lower impulse H and I motors Be certain your center of gravity CG is at least 5 or more forward of the center of pressure CP when the rocket is fully loaded ready for flight Because of the small surface area of the fins on the Elipse be sure you establish the correct CG Add nose weight...

Page 3: ...OUS VIOLATION OF FEDERAL LAW TO FLY THIS ROCKET ANYWHERE EXCEPT AT LAUNCHES SANCTIONED BY THE TRIPOLI ROCKETRY ASSOCIATION OR THE NATIONAL ASSOCIATION OF ROCKETRY WHOSE ORGANIZERS HAVE SECURED AN APPROPRIATE WAIVER FROM THE FEDERAL AVIATION ADMINISTRATION FAILURE TO DO SO CAN RESULT IN SUBSTANTIAL FINES AND OR IMPRISONMENT DO NOT EVEN THINK OF FLYING THIS ROCKET ANYWHERE EXCEPT AT CERTIFIED LAUNCH...

Page 4: ...ord 15 feet 1 KEVLAR FireBall small 1 KEVLAR two ended shockloop 15 2 KEVLAR parachute pads medium 18 chute single piece 48 chute single piece Assembly Instruction booklet 3 Avionics Bay 1 eyebolt 1 4X20 washer nut 1 6 long GROOVE LOK Supplies needed by the builder to complete this kit 6 min or 12 min epoxy 30 min or 45 min epoxy J B Weld mixing cups and mixing stick masking tape rubber band tape ...

Page 5: ...ortube with some heavy grit sandpaper On the scuffed end of the motortube mark a line from one end See Figure below left Test fit motortube into the tailcone until it hits the internal stop Remove tailcone Apply JB Weld on the motortube in the space between the line and the aft rear end of the tube See Figure above right Be sure NOT to apply the adhesive to the tailcone doing so will cause the adh...

Page 6: ...d end of the Groove Lok see Figure below left Then remove Groove Lok and apply quick cure epoxy to the motortube in the area between the line you ve just made and the aft rear centering ring don t apply it to the inside of the Groove Lok Don t use too much epoxy otherwise it will smear and drip all over when you slide on the Groove Lok It only requires a thin film of epoxy to adhere the Groove Lok...

Page 7: ...ts correctly Sometimes very minor variations in slotting may be require that you rotate the airframe to better match the slots to the fins Once you find a satisfactory orientation mark the airframe relative to the tailcone for reference later Be sure that the airframe butts against the tailcone See below Remove the airframe from the fin canister Attaching the Fins Then remove one fin and place med...

Page 8: ...ove the masking tape holding fins Lay the fin canister assembly horizontally in such a way that no weight is placed on the fins See Figure above right You do not want to lose the fin alignment Apply more quick set epoxy to the fin Groove Lok joint At the same time adhere the forward centering ring to the motortube and to the fins Keep the epoxy within or less from the base of the fin otherwise it ...

Page 9: ... of the airframe The distance from top of the Hardpoint to the top 1 3 mark on the ball when stretched is about 19 or 20 This measurment varies slightly so you need to figure this for your own application It may take several attempts Once you are satisfied with the installation drop some thin CA glue to lock the tied knot on the eyebolt This is important because again this area is not accessible a...

Page 10: ...tailcone and rear centering ring Use plenty of epoxy for this step Now slide the fin canister all the way until the tailcone seats on the rear edge of the airframe Immediately flip the assembly so that the tailcone is downward This allows the epoxy to flow into the forward ring and the aft ring There will be a small slot opening between the bottom of the fins and the tailcone Cover this with a sma...

Page 11: ...em NOTE ATTACH THE NYLON SHOCKCORD TO THE FIREBALL IN THE BOOSTER SECTION AND USE THE KEVLAR CORD IN THE UPPER SECTION Starting with the drogue recovery system slide the KEVLAR pad onto the exposed end of the shockcord that is attached to the booster Let it slide freely around The pads never get anchored permanently to the line Make a knot in the shockcord about 12 away from exposed end This will ...

Page 12: ... and upper section at time of flight should fit such that when the rocket is held upright by the upper section the booster should just begin to slide off Adjust with tape on launch day if necessary Moving to the main recovery system as with the drogue make a knot and loop in the shroud lines of the main chute Then attach main chute and shockcord to eyebolt in the nosecone with a quiklink Fold main...

Page 13: ...aching the Rail Guides Installation shown for Firestorm 54 but application is the same for the your kit The rail guides get attached only to the booster section of the rocket Begin by marking a line along the length of the booster section Angle aluminum 1 by 1 is particularly helpful because when laid on a tube it allows one to mark a straight line below left You may want to make it a permanent pa...

Page 14: ...t using quikllink Then slide the forward bulkhead assembly and charge wires down the upper airframe until the allthread and wires poke out the aft end of the avionics bay Attach the other electric match and charge for drogue to the lower end of aft bulkhead and feed the wires through 1 8 hole These will eventually feed to the inside of the avionics bay Secure both main charge and drogue charge wir...

Page 15: ...e ejection charge Fully constructed rocket with the layout of the components shown Picture shows Firestorm 54 but configuration is the same for your kit Slimline Retainer Fin canister Drogue Kevlar Pad Kevlar cord Booster Avionics Bay upper section Kevlar Pad Kevlar cord Nosecone Main chute Safety Code and Waiver Giant Leap Rocketry Inc and KB Kits LLC herein referred to as Giant Leap Rocketry has...

Page 16: ...eased 12 2 The ignition system shall contain a removable safety interlock device in series with the launch switch 12 3 The launch system and igniter combination shall be designed installed and operated so the liftoff of the rocket shall occur 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 insta...

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