ESTES 2149 - SM3 Seahawk Manual

Summary

This comprehensive guide provides detailed assembly instructions for a high-performance model rocket kit, covering both upper and lower structural sections. The manual walks builders through intricate component fitment, secure mounting techniques, and proper finishing procedures. It is designed for hobbyists who require professional guidance on construction integrity, concluding with essential safety protocols and the step-by-step launch sequence for safe rocketry operation.

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ESTES INDUSTRIES (11-97) 84479

LOWER SECTION ASSEMBLY

EXP 上 RER

CE pentcse'0g 2 EST 2149

SERIES

SKILL LEVEL 2 1. S11-3 SEAHAWK- @@Copyright 1997 Centuri Corp- Alrights reserved.

FLYING MODEL ROCKET KIT INSTRUCTIONS

MATERIALS REQUIRED: PENCIL, RULER, HOBBY KNIFE, SCISSORS,WHITE OR YELLOW GLUE,TUBE-TYPE PLASTIC CEMENT MASKING TAPE, 320 GRIT SANDPAPER, MAXIrw ROD, AUTOMOTIVE SPRAY PRIMER (GRAY),GLOSS WHITE SPRAY PAINT, GLOSS BLUE SPRAY PAINT PAPER TOWEL

ALL GLUED AREAS ARE SHADED IN GRAY

BE SURETO READ ALL INSTRUCTIONS,TEST FIT ALL PARTS, AND SAND IF NECESSARY BEFORE GLUING.

ff 本PARTS LAYOUT A. Using plastic cement，

assemble iower fin

NOSE CONE halves to make four 55AC (1 equal size fins. B. Tape fins tog 71070 let dry.

C. Once dry rer and trim away

本 plastic (flash)

37337 UPPERTUBE

(4.3") BT55 (1

REDTUBE S COUPLER 55C (人 ) 301755 ES GREEN ADAPTER

RINGS 5055 (3) 30166-2

ADAPTERTUBE

SLOTTED UPPER 30362 TUBE BT 55 (人 A. Measure and mark the engine mount tube

at 1-1/8"” (2.9 cm), 2-1/2”(6.4 cm) and at 3-1/8" (7.9 cm) from the REAR {be sure

PLASTICTUBE to note position of engine block ring). ADAPTER 2083 (1)

LOWER FIN SET (8 HALVES)

BROWN ENGINE

MOUNTTUBE

BT 50H (1)

CENTERING RINGS 8. Use a hopby knife to RA50/1835 (1 CARD) make a 1/8" (3 mm)

ENGINE Hook K wide slit at the 2-1/2， EH-2A (人 (6.4 cm) mark ONLY!

STIFFENER

TUBE () 他

GREEN ENGINE

BLOCK RING (1)30164-2 _EE AE 一

SHOCK CORDS 14X 24 人

YELLOW ENGINE 38383

SPACERTUBE (1)

LAUNCH Lu GS 35003

12CF (2)

C. Insert engine hook

SLOTTED LOWER

into siit as shown.

TUBE 1835 {1)

ASSEMBLED

PARACHUTES - 18 (2)

Page Summary Contents For ESTES 2149 - SM3 Seahawk Manual

Page 1 ESTES INDUSTRIES (11-97) 84479 LOWER SECTION ASSEMBLY EXP 上 RER CE pentcse'0g 2 EST 2149 SERIES SKILL LEVEL 2 1. S11-3 SEAHAWK- @@Copyright 1997 Centuri Corp- Alrights reserved. FLYING MODEL ROCKET KI...

Page 2 (5 mrmy A. Mark yellow engine spacertube at 3/16” B. Piace a thin layer of glue (5 mm) from one end. about 2”(5 cm) inside the engine mounttube (brown). YELLOW ENGINE SPACER E. REMOVE YELLOW INSERT UP...

Page 3 . Mark the launch lug line at A. Use a door frame to draw a straight 纸 1-1/2" (3.8 cm) and at jine down the length of the lower 12" (30 cm) from the rear of body tube centered between two fi...

Page 4 A. Apply aring of glue inside the slotted end of the No TE pos Ir Io N body tube at the top of the siots as shown. OF NOTCHES B, Insert the engine mount into the slotted end of body tube until the rea...

Page 5 UPPER SECTION ASSEMBLY FINISHED 及 A. Apply glueto one end ofthe adapter C. Apply plasiic cementto the FRONT tube and slide a green adapter ring of the plastic adapter as shown， onto the tube until the...

Page 6 completely dry, apply aband of glue B. Slide the front of the adapter assembly part way into justin front of the REAR slots on the the tube, apply a band of glue around the rear ring， slotted upper bo...

Page 7 18. A. Insert the nose cone and apply a thin coat of gray automotive primer to entire rocket and let dry Sand and prime the rocket until a smooth base is achieved. (sb B. Apply a layer of gloss white ...

Page 8 [LAUNCH SEQUENCE COUNTDOWN AND LAUNCH 1 0. sw Safety key must not be in At peak altitude launch controiier. (apogee), the upper | The safety cap with safety Son and 本 key attached should already 站 e a...

Manual Details

Brand	Estes
Pages	8
File Size	19.34 MB
Published	June 03, 2026

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Frequently Asked Questions

What materials are required for construction?

Pencil, ruler, hobby knife, scissors, white or yellow glue, tube-type plastic cement, masking tape, sandpaper (320 grit), Maxirw rod, spray primer, and paint.

How should I prepare the fins before assembly?

Test fit all parts, and sand if necessary before gluing. Plastic cementing is used to assemble lower fin sections and attach them together.

What safety steps must be followed after a misfire?

Remove the safety key from the launch control system, wait one minute, remove the expended igniter, replace it with a new one ensuring contact with the engine propellant, then repeat the countdown.