Baby Bertha™

(52 customer reviews)

Baby Bertha™

(52 customer reviews)

A miniature version of one of the most popular kits of all time, the Big Bertha. There’s nothing childlike about the Baby Bertha! It’s fun to build and decorate.


Availability: In stock

For This Rocket

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What you need to launch

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The Baby Bertha is a half-sized version of one of Estes’ most popular rockets, the Big Bertha. The Baby Bertha stands just 13 inches making it an ideal Intermediate building experience. High performance and easy to build is this model rocket.

The Estes Baby Bertha requires assembly and can be built and finished in just an hour. You can paint it like the package or create your own Go Wild design! The kit features the distinctive looking laser cut wood fins, a blow molded nose cone and easy to apply self-stick decals. When powered with Estes standard model rocket engines, it can streak to 575 feet and is easily recovered with a colorful 12 inch parachute.

Complete your set of Berthas with the addition of this mini missile today!

WHAT YOU NEED TO BUILD: Scissors, pencil, ruler, fine sandpaper, carpenter’s glue, hobby knife, masking tape, white 1/32 inch pin stripe tape or white paint pen, primer (white), paint (black, white) and clear coat (optional). (Tools, construction and finishing supplies not included.)

WHAT YOU NEED TO LAUNCH (sold separately): Estes Porta-Pad II Launch Pad and Electron Beam Launch Controller, 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

575 ft. (175 m)

Recovery System

12 in. (30.5 cm) Parachute


12.8 in. (32.5 cm)


1.64 in. (42 mm)

Estimated Weight

1.9 oz. (53.9 g)

Estimated Assembly Time

1 Hour (painting and glue drying time not included)

Fin Materials

Laser cut wood

Decal Type


Launch System

Porta-Pad II and Electron Beam Launch Controller

Launch Rod Size


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.

52 reviews for Baby Bertha™

  1. Zane

    Awesome rocket

    This rocket is great. It recovers great, launches great, and is super-easy to assemble. Doesn’t go very far from the launch pad.

  2. Zane

    Easy to assemble: flies great

    I bought three of these for a science project I was doing (How does fin shape affect the altitude). We modified the fin shapes on two of them to test them. Each launch they flew great and recovered awesome. Great rocket for any age.

  3. Bradley

    nice rocket

    It was a nice rocket. It was easy to build and paint. I launched it and it flew nice. It got lost though.

  4. Nathanael

    Nice rocket

    This is an awesome rocket for anyone, and a real classic. It can easily take up to C motors, and is plenty stable!

  5. Louie

    cool rocket

    if you have a Big Bertha then you must have a Baby Bertha…Flies great and is good for smaller fields.

  6. Eric

    Baby Bertha

    And great addition if you already have the Big Bertha in your collection. Has similar flight characteristics, but is a little faster off the launch pad than the big bertha is. However, the build is identical. Just follow the included build guide, and you will be in the air in no time.

  7. Ryan

    Very reliable and robust.

    I’ve launched this rocket every time I’ve launched rockets since I got it a year ago, probably 20 launches. It takes a lickin’ and keeps on tickin’ and is very easy to repair. Does great slow launches on A motors, with C motors it goes quite high and is easy to see.

  8. tuckaloe


    I spent a lot of time on this one, lots of filler, sanding, coats of paint….looked great. But the beauty is in the launch. A8-3, almost cute, goes about 50′, arcs over and the chute pops. Practically falls back into your lap.

    Step up to C6-5……dayum……I have full sized engined rockets I enjoy less than this little thing. It goes ballistic, bulky shape remains visible(paint it BLACK) and it’s a great flier. Favorite in many years of launching for whatever quirky reasons, off to build my first Big Bertha. To me, this lil missle really shows what he small C engines can do. Huge fun in a small package.

  9. Abby

    Good Rocket

    We shot these off in my class- and this flies great! I really love this rocket.

  10. Don

    just a great basic rocket

    A easy build, great for school yard launches.fires off true every time,I painted mine olive drab and use long delays it looks like a ww2 bomb dropping in before chute deploys.

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