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STAR HOPPER
EstesRockets.com
MODEL ROCKET INSTRUCTIONS
KEEP FOR FUTURE REFERENCE
IMPORTANT: Please record date found on decal and keep for future reference. ______________
Read all instructions. Make sure you have all parts and supplies.
090001-1721
Self-stick decal
™
073219
Nose cone
1721/7303
073222
Fin
X3
073220
Engine mount
fin can unit
(1 fin slot)
073224
Shock cord mount
030408
Body tube
038274
Streamer
073223
Engine retainer cap
073221
Engine mount
fin can unit
(2 fin slots)
038366
Shock cord
1
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ASSEMBLE ENGINE MOUNT FIN CAN UNIT
1.
Press fin can
halves together.
2.
ATTACH SHOCK CORD TO FIN CAN
1.
Attach shock cord to shock cord
mount with a double knot.
DOUBLE KNOT
ATTACH BODY TUBE TO FIN CAN
1.
Feed the shock cord through body tube.
2.
Insert into hole and rotate down.
2.
Align slots in body tube with
tabs on fin can unit. Slide body
tube over fin can unit until tabs
on fin can match up with slots
in body tube.
ALIGN
3.
2
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ATTACH FINS
1.
Insert fin into slot.
2.
Slide fin forward until it stops.
X3
Repeat for remaining fins.
3.
Screw engine retainer cap
onto fin can unit.
APPLY DECAL
ATTACH THE NOSE CONE AND STREAMER
1.
Attach nose cone to shock
cord with a double knot.
DOUBLE
PREPARE FLIGHT RECOVERY
1.
Push recovery
wadding down
towards end of
body tube.
KNOT
Decal
2.
Tie the streamer
to the shock cord.
3” (7.6 cm)
2-3 SQUARES
ESTES®
RECOVERY WADDING
NOTE:
Recovery wadding and
streamer must slide easily into
body tube. If too tight, redo.
2.
3.
NOTE:
Fold then roll.
4.
3
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PREPARE ENGINE
1. 2.
COUNTDOWN AND LAUNCH
ENGINE
3.
STARTER
Use 1 each
per engine.
PLUG
4.
5.
TIP MUST TOUCH
PROPELLANT!
WARNING: FLAMMABLE
To avoid serious injury, read instructions & NAR
Safety Code included with engines. PREPARE YOUR
ENGINE ONLY WHEN YOU ARE OUTSIDE AT THE
LAUNCH SITE PREPARING TO LAUNCH. If you do
not use your prepared engine, remove the starter
before storing your engine.
6.
7.
NOTE:
Key always out until final
countdown!
1.
MASKING TAPE
6”
(15.2 cm)
2.
3.
4.
Fully extend your
launch controller wire
before launching.
5.
16.4 ft. (5 m)
6.
KEY
Insert key, push down
hard. Bulb will light.
7.
4...
2...
1...
Estimated weight: .73 oz. (20.7 g)
ESTES® LAUNCH SUPPLIES NEEDED
(Sold Separately)
• Launch Pad
• Launch Controller
• Recovery Wadding
• Starters (with engines)
• Plugs (with engines)
• Estes® Engines: 1/2A3-4T, A3-4T, A10-3T
NO DRY GRASS OR
WEEDS
3...
10.
9.
PRECAUTIONS
PRE-LAUNCH CHECK For safety, never launch a damaged rocket. Check the rocket's body, nose cone and fins. Also, check the engine mount, recovery system and launch lug(s). Repair any
damage before launching the rocket.
FLYING YOUR ROCKET Choose a large field (500 ft [152 m] square) free of dry weeds and brown grass. The larger the launch area, the better your chance of recovering your rocket. Football fields
and playgrounds are great. Launch only with little or no wind and good visibility. Always follow the National Association of Rocketry (NAR) SAFETY CODE (enclosed).
MISFIRES TAKE THE KEY OUT OF THE CONTROLLER. WAIT ONE MINUTE BEFORE GOING NEAR THE ROCKET. Disconnect the micro-clips and remove the engine. Take the plug and
starter out of the engine. A burned starter means the starter tip was not touching engine propellant. Install a new starter; be sure the tip is touching propellant inside the engine. Push the plug in
place. Repeat steps under Countdown and Launch.
© 2020 Estes Industries, LLC • All Rights Reserved
Estes Industries, LLC • 1295 H Street, Penrose, CO 81240-9698 • Made in Guangdong, China PN 090004-1721 (2-20)
NAR SAFETY CODE
8.
While holding key down FIRMLY,
press launch button until LIFTOFF!
4
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