Estes Flying Model Rocket Kit Little Joe I  EST 7255 OOP

Estes Flying Model Rocket Kit Little Joe I EST 7255 OOP

(1 review) Write a Review
Now: $29.99
Was: $34.99
EST 7255
Ships same or next day
Maximum Purchase:
6 units
Calculated at Checkout
Skill Level:
3 Advanced
Motor Mount Size:

Estes Flying Model Rocket Kit Little Joe I   EST 7255  Out of Production
The Little Joe booster was the first rocket designed solely for manned spacecraft qualifications and to measure critical parameters at higher altitudes. The Estes 1/34th scale Little Joe stands almost 18” tall and launches to 400’ on a C6-5 engine. Other features include a plastic Mercury capsule and engine nozzles, precision laser cut balsa and printed card-stock fin wraps, high quality water slide decals and a colorful 15” parachute for “safe reentry.” 

Skill Level 3 Advanced

Length: 17.62"(44.75cm)
Diameter: 2.34'(59.43mm)
Estimated Weight: 3.2oz(90.7g)

Laser Cut Wood and Centering Rings

Printed Card Stock Fin Wraps

Water Slide Decals

15"(38.1cm) Parachute Recovery

1/8" Launch Lug

Estimated Assembly Time 12 Hours (painting and glue drying time not included)  Download Instructions

Recommended Engines: B6-4 (first launch), B4-4FJ, B6-4W, C6-5, C5-3, C12-6FJ, C18-6W, D16-8FJ, D12-8W

Projected Maximum Altitude: 800'(244m)


Model Rocket Kits are rated by Skill Level

1 Beginner

2 Intermediate

3 Advanced

4 Expert

5 Master

If you are just starting in the hobby start at the beginner level and move up from there at your own pace.

What is needed to build and fly

All model rockets come in kit form that require assembly.  The materials are primarily cardboard tubes, balsa or plastic fins and nose cone.  Materials will vary by model and are typically specified in the description of each kit. 

Additional supplies will be necessary to build and finish your model rocket kit and may include:

Scissors, Hobby Knife


Wood Glue, Model Cement or CA(Super Glue)


Masking Tape

Finishing Supplies like:

Wood Filler



Launching Equipment and Supplies like:

Recovery wadding

Launch Pad

Launch Controller

Power supply

Model Rocket Motors and Igniters

A safe place to fly using guidelines from the National Association of Rocketry Safety Code


Full one year warranty through manufacturer
  • 3
    Little Joe

    Posted by Jonathan "Superman" Charbonneau, NAR life member 52871 on 9th May 2019

    I would like to recommend that the escape tower panels be assembled to the base of the escape rocket after the separation motor is assembled but before the nozzles are assembled. If the nozzles are put on first, the escape tower won't fit properly. The instructions "as written" will cause the rocketeer to paint himself into a corner. This tip is likewise applicable to the Mercury Redstone kit, as it has the exact same Mercury Capsule as this kit.