001948 – Big Bertha™


Intermediate Skill
(Formerly Skill Level 1)

The Big Bertha gives you a slow, realistic liftoff. What a thrill it is to watch! Propelled by powerful standard Estes engines, this beauty travels to 500 feet. In one afternoon your Bertha is ready for an exciting time at the launch field!

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Intermediate Skill
(Formerly Skill Level 1)

Big Bertha is an Estes original! She’s an all around Estes favorite that has truly withstood the test of time. Over the decades, Big Bertha has been most modelers’ first big build. If you’ve never flown a Bertha, get one and launch it. Once you’ve flown it, you’ll take it to every launch!

The Big Bertha gives you a slow, realistic liftoff. What a thrill it is to watch! Propelled by powerful standard Estes engines, this beauty travels to 500 feet and comes back to earth with an 18 inch parachute. Quality Estes body tubes, laser cut wood fins, molded plastic nose cone and easy to apply waterslide decals make for an afternoon of building enjoyment.



Additional information


24 in. (61 cm)


1.64 in. (42 mm)

Estimated Weight

2.5 oz. (71 g)


Laser Cut wood Fins, Waterslide Decals, 18 in. (46 cm) Parachute Recovery

Projected Max Altitude

500 ft. (152 m)

Age Recommendation

Estes model rocketry is recommended for ages 10 and up with adult supervision for those under 12. Unless otherwise specified, all models require assembly. Tools, construction and finishing supplies sold separately. In order to launch, a launch system, model rocket engines, starters and recovery wadding are required – sold separately-unless otherwise specified.

56 reviews for 001948 – Big Bertha™

  1. Scott

    One of the best all time!

    One of the best rockets of all time in the Estes rocket collection! A must have for any rocketeer.

  2. george (verified owner)

    Bertha Baby!

    I got back into model rocketry to keep my grandkids entertained and have to admit, I’m hooked again, I built a Big Bertha recently and launched on a C6-5 with a keychain HD camera (which we didn’t have back in the day) and got some awesome video…try it! Since I built Big Berta I’ve just finished the Mercury Redstone and have a V2 on order. We are lucky to have a big field at a local county park very close, so we are launching rockets on a regular basis…it’s fun!

  3. Michael

    One Of A Kind

    I had Big Bertha and I really liked it. Most rockets launch fast but I liked how Big Bertha had a really realistic launch

  4. Andrew

    Classic rocket

    I used to fly this rocket when i was a kid, just got one for my kids. Very easy build and great in the sky. Very durable rocket

  5. Andrew


    flies straight. loves the C6-5. Big tube is easy to pack. love the huge chute it comes with, but I might refrain from using that on a windy day… Good predictable flights. pretty easy build and I love the look of it. If I ever lost this one I would get another to replace it. one of my favorites and a classic for a reason (its great)

  6. Dean

    A true classic.

    I built and flew a Bertha kit when I was a kid some 40 years ago. This is a time-proven classic that still generates excitement when brought to the launch pad. I modified my current Bertha to include an E-sized motor mount and ejection baffle. It’s a great flier on D12-5s, but I’ve never gotten up the nerve to try the E. The C11 option gives a little more kick off the pad, too. Everybody should have a Big Bertha in their fleet.

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