Tandem-X™ Launch Set

(78 customer reviews)

Tandem-X™ Launch Set

(78 customer reviews)

Big value and even bigger fun! The Tandem-X Launch Set includes the impressive, easy-to-assemble Amazon rocket (over 29 in. tall!) and the high-performance Crossfire ISX rocket. The Amazon builds quick with pre-colored plastic parts and self-stick graphics. The Crossfire ISX is a perfect next-step to an Intermediate level model with laser cut wood fins and self-stick decals.



Availability: In stock

For This Rocket

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What you need to launch

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Two is better than one! This exceptional rocket set features a pair of extreme, high performance rockets and a launch system.

The Beginner level Amazon is as imposing as the name sounds. This giant stands almost 30 inches tall and is quick and easy to build! A black body tube, precolored plastic nose cone and fins and a tiger striped self-stick decals make building this rocket easy to do in about an hour. When flown on our Estes standard model rocket engines, this huge rocket can reach heights over 650 feet.

The Crossfire ISX is an Intermediate level kit that can easily be built in about a day. This rocket features a totally streamlined shape with aerodynamic fins and nose cone. It stands 15.6 inches tall. When launched with powerful Estes standard model rocket engines, this bullet can reach cloud busting heights up 1,150 feet. A 12 inch parachute returns the Crossfire back to earth to launch again and again.

LAUNCH SYSTEM includes Estes Porta-Pad II Launch Pad and Electron Beam Launch Controller.

WHAT YOU NEED TO BUILD: Amazon: Scissors, fine sandpaper, carpenter’s glue, plastic cement, hobby knife and masking tape. (Tools, construction and finishing supplies not included.)

WHAT YOU NEED TO BUILD: Crossfire ISX: Scissors, fine sandpaper, carpenter’s glue, plastic cement, hobby knife, masking tape, primer (white) and paint (gloss red, white). (Tools, construction and finishing supplies not included.)

WHAT YOU NEED TO LAUNCH (sold separately): Estes model rocket engines, starters and recovery wadding. Four 1.5V high quality AA alkaline batteries are also required for launch controller (not included).



Projected Max Altitude

Amazon : 600 ft. (183 m)
Crossfire ISX : 1150 ft. (350 m)

Recovery System

Amazon : 18 in. (45.7 cm) Parachute
Crossfire ISX : 12 in. (30.5 cm) Parachute


Amazon : 29.4 in. (74.7 cm)
Crossfire ISX : 15.6 in. (39.6 cm)


Amazon : 1.33 in. (34 mm)
Crossfire ISX : 0.98 in. (25 mm)

Estimated Weight

Amazon : 3 oz. (85 g)
Crossfire ISX : 1.3 oz. (37 g)

Estimated Assembly Time

Amazon : 1 Hour (painting and glue drying time not included)
Crossfire ISX : 1 Hour (painting and glue drying time not included)

Fin Materials

Amazon : Plastic
Crossfire ISX : Laser cut wood

Decal Type

Amazon : Self-stick
Crossfire ISX : Self-stick

Launch System

Amazon : Includes Porta-Pad II and Electron Beam Launch Controller
Crossfire ISX : Includes Porta-Pad II and Electron Beam Launch Controller

Launch Rod Size

Amazon : 1/8"
Crossfire ISX : 1/8"

Age Recommendation

Estes model rocketry is recommended for boys and girls ages 10+ with adult supervision for those under 12, and rocketeers of all ages.

78 reviews for Tandem-X™ Launch Set

  1. caiden

    ilove the building and the flying part this is good for kids to play withn when there board

  2. rafaelriosvega (verified owner)

    Grate for kids first time launch with help of an adult. Fun to build!!

  3. rocketman

    it was the best set i have ever got and i have 75 rockets to fly thank you estes for another amazing rocket set i love your service and quality

  4. winslow.michael

    So much fun to put together and launched 3 times each. What an awesome first experience in rocketry! thank you Estes!

  5. Susan Hardee (verified owner)

    Great rocket set. Launched and retrieved both rockets twice. Easily able to see and recover the Amazon. Would recommend not painting the Crossfire white as depicted, as it makes it a little harder to spot, track, and recover.

  6. august chenetski

    It did not come with a stand off stem how am I supposed to build the launch pad and successfully launch the rockets without a stand off stem

  7. Rocket Guru

    Great value [Estes], the [Crossfire-ISX] is made for serious [D10-7 composite 18mm motors] only, with it’s through tube fins and [only use epoxy and, or C/A adhesive], also reinforcing the balsa. The [Amazon] rocket looks like a shorter discontinued [Estes Cobra 1500], at about half the length. [Hint] if you purchase this kit, also purchase [Estes Booster-55], swapping the fin cans, with the Amazon rocket fin can, the fins will interchange, add some nose weight, to rebalance [C/G, for D motors, or composite E motors]. You can still use 18mm motors, with an [Estes 18mm to 24mm motor adaptor], for smaller launch windows. The [Amazon] should see about [1,800 feet, of altitude, with an E composite motor]. I use a [one piece, polished, harden steel rod], for a launch rod and can use smaller launch lugs, than most, with 2 piece, threaded aluminum rods and get less whip during lift off. Keep making these great combo kits Estes, for better diversity at a launch. Wish the [Amazon] rocket was sold separately like the [Crossfire-ISX], please Estes?

  8. Alex Zvonchuk

    Cool rocket

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