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.



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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. JENNA

    twice the fun

    two rockets double the fun~!!!!!!!

  2. nittanyboiler

    Some tips for first-timers.

    Be sure to use a new alkaline 9V. A regular 9V doesn’t have enough juice. Also, regularly replace the rubber shock cord that connects the parachute, rocket body, and nose cone. If you don’t, the band will dry rot and break which will cause a bad crash for the rocket body. The Amazon went great on a C6-5 engine. Regarding the Crossfire rocket, the packaging says a C6-5 engine fits but there was no way it would fit if you followed the assembly instructions and unfortunately I figured this out when I went to the launch site (not supposed to insert the engine until you are ready to launch). Overall good fun! ESTES NOTE: The C6-5 engine casing is the same size casing as the A8-3 and B6-4, so they all fit. Assembly instructions were also reviewed verified as a backup check.

  3. Mark

    Easy Start

    This set was a birthday gift for my 9 year old son and his introduction into model rockets. The Amazon was quick and easy to build and got us quickly out to the field to start flying. It flies great on a B6-4 and even survived when we launched it on an A8-3 (oops), popping the chute just in time to save it from becoming a lawn dart. The Crossfire build is a little more complex but with some help from me he’s just about got it completed.

  4. Editdroid

    Lots of fun

    On vacation my family went to Kennedy space center. At the end of the tour I expected to see some rocket kits to sell to excited kids, but there were none in the gift shop. I ended up buying this kit the next week. We went to launch both rockets today, and I was very happy with the results. We launched both rockets with B engines, and were impressed. Then we launched both with C’s and by the 4th launch everybody in the park was watching. Both of my kids, and my wife, had a great time! This is a great hobby, and a great kit to get started with.

  5. RocketMan

    The Essentials For Getting Started

    My love for the model rocketry hobby began 15 years ago when I was only 12. Just recently I rediscovered my love for the hobby when I was contemplating what fun activities I could introduce my young nephews to. Sadly, my neglected collection of rockets and equipment did not survive over the years when they weren’t in use. I came across this kit and decided it would be the building base of my new collection. The kit contains most of the essentials to get started into the rocketry hobby. All you will need is batteries for the controller and a pack of engines and some wadding. The Amazon rocket is easy to build and can be flown within a few hours. The Amazon flies well for a larger rocket. The Crossfire ISX is a skill level 1 rocket that will require more time to build and paint. I have launched the Crossfire several times and it never fails to amaze me. It flies straight and high. Keep your eye on this rocket, or you may lose sight of it! Have not yet had the courage to fly it on a C engine. This starter kit is an excellent deal and I would highly recommend it for anyone, young or old, who is getting started out in model rocketry. Great job ESTES, keep up the amazing work!

  6. Matthew

    Two Thumbs Up !!!

    Purchased this Launch Set for my Daughter, who is just starting into the hobby. We both love it !!!!

  7. Noah


    Easy to assemble. would reccomend this to beginners.

  8. Juliet

    Good launch set

    This is complete launch set with two different rockets, which only require basic skills to build. Good for beginners.

  9. Norman

    Great Beginner Package

    This is a great package for beginners. The Amazon can be assembled and in the air in a couple of hours (if you let all the plastic cement dry). The Crossfire takes a little more work to build, but will fly out of sight.

    The launch system is basic, and gets the job done. It breaks down into manageable parts for storage, and is easily assembled for launch.

    The Amazon was the first rocket my son and I built and launched together. Assembly was easy and the directions straightforward. This rocket will teach you the basics of gluing and putting stickers on. No real challenges. It’s a great rocket to fly. Ours lasted about a dozen launches before we our shock cord failed (remember to put in a new one once in a while) and we had a career ending crash.

    The Crossfire takes a little more work assembling. You will have to do some sanding and measuring to get it all together. If you want it to look good you’ll have some finishing work (priming, sanding, and painting) to do. It flies like a champ, even on the B motors. With the C motors you can have a cup of coffee before it comes back down. Make sure you’re in a large open area, because even with a slight breeze the parachute can help it drift quite a ways off.

  10. boxatoys

    Nice First Kit

    Was out w/ my kids (10 & 8) at a local hobby shop and saw the Estes model rocket display. Asked a clerk for some help and he pointed us to this set. That night we put both rockets together and watched a you tube video on launching. Found that we needed wadding to protect the chute, wish the clerk told us that tidbit. After a run to the store we were off to the field where we launched both rockets multiple times. The kids had a blast and they can’t wait to bring their friends along for the next launch. Would recommend this kit to anyone just getting started. I’ve never been into rocketry before but I think after this weekend we’re hooked.

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