Kits YOU Build!

Theta 18 Model Rocket Kit


Price: $12.95 each
  6+: 9.50 each
12+: 7.95 each
24+: 6.75 each


Great beginner's kit that's easy to build & fly! Designed for use in school & other group settings. Makes a great first or second rocket kit! Designed with the beginner in mind, but it's also a fun sport flier for modelers of any experience level.

Features laser-cut balsa fins, plastic nose cone & streamer recovery. Designed to fly on easy to find 18 mm A, B or C engines.

Good model to use to learn basic rocketry modeling. Perfect for school or scout groups with economical bulk packaging available. For the discounted quantities of 6 or more the kits are provided in bulk form with a single set of instructions (which may be photocopied if desired for each modeler).

Please note: Bulk pack kits may come with plastic or balsa nose cones, depending on our best availability at the time. If you have a preference please let us know and we will do our best to accommodate you if possible (price may be higher for all balsa).


Length: 15"/38 cm    
Diameter: 0.98"/24.9 mm
Weight: 1.1 oz/30 gm
Streamer Recovery  
Skill Level: Beginner
Center of Pressure: 12.3" from tip of Nose Cone
Recommended Engines: 1/2A6-2; A3-4; A8-3; B4-4; B6-4; C6-5; C12-6; D16-6

Estimated (calculated) altitudes:

with 1/2A6-2: 100 feet/30.5 meters
with A3-4: 275 feet/84 meters
with A8-3: 265 feet/81 meters

with B4-4 (Estes): 510 feet/155.5 meters
with B4-4 (Quest Q-Jet): 570 feet/174 meters

with B6-4: 510 feet/155.5 meters
with C6-5: 930 feet/283.5 meters
with C12-6: 895 feet/273 meters
with D16-6: 1010 feet/308 meters

What you'll need to build this model:

Required: Adhesive (A wood glue, such as Elmer's Carpenters Glue or Titebond can be used for all steps and is recommended); sandpaper (medium - 220 or 280 grit); pencil or ball point pen; scissors or hobby knife; tape (cellophane or masking).
Optional: sandpaper (fine - 320 or 400 grit, extra fine - 500 or 600 grit); filler material (such as Elmer's Fill & Finish, Elmer's Professional Carpenter's Wood Filler or interior spackling paste); sanding sealer (or balsa fillercoat); thinner (appropriate type for the sanding sealer); small paint brush; paint (Spray paint, such as Krylon, Rustoleum or Testors is recommended. Be sure not to mix different types or brands of paint without testing.) - primer; colors as desired & clear; sanding block; tack cloth.

Check out our "Basic Building" Combos if you need a lot of the items above at a discounted price!

What you'll need to fly this model:

Electronic launch system; launch pad with 1/8" launch rod; recovery wadding; engines (see list of recommended engines above).

Want to fly a payload? You can easily add the Simple Payload Sections size 50 or 50 Long! They are also available in bulk pricing and you can see them here.

You can read the instructions for this kit by clicking here.

Additional Instructions/Notes for Teachers/Group Leaders using bulk packs are here.

You can download extra copies of the tube marking guides for use with bulk packs by clicking here.