Estes - Big Bertha

Estes - Big Bertha Kit

Decals:	Self-Stick
Designer:	Vern Estes
Diameter:	1.64 inches
Fin Material:	Balsa
Length:	24.00 inches
Manufacturer:	Estes
Model:	1948, 23, 7007
Motor Size:	18 millimeters
Nose Cone Material:	Plastic
Power:	Low-Power
Product Type:	Kit
Recommended Motors:	B4-2, B4-4, B6-2, B6-4, C6-5
Recovery:	Parachute
Skill Level:	1
Status:	In-Production
Style:	Sport
Tags:	Family:Estes:Big Bertha
Weight:	2.20 ounces

Run Motor Simulations

Reviews

Estes - Big Bertha {Kit} (1948, 23, 7007) By Bill Eichelberger
Brief: Everybody's favorite prom date, the Estes Big Bertha, is a rocket that seems to wind up in every fleet at one time or another. While there are a lot of other rockets in her size range that equal her low, slow, and always stable flights, there's something to be said for building and flying the original. Bertha's getting a little long in the tooth these days and in need of an ...
Estes - Big Bertha {Kit} (1948, 23, 7007) By Clive Davis
Background: This spring I ran a build session for faculty kids at the school where I teach. I ended up using the Quest Bright Hawk for the 7-9 year olds and the Quest Big Betty for the 10-12 year olds. After the build session, I began thinking about the types of rockets that would make great first builds for a budding rocketeer. I wanted to select rockets to compare that had the ...
Estes - Big Bertha {Kit} (1948, 23, 7007) By Paul Gray
(by Paul Gray) Background The Big Bertha is a classic rocket built and flown by thousands of people around the world since 1965. Its was designed to have a rather impressive size and to develop the skills of people who are advancing themselves further in the hobby of model rocketry. Because of its size and performance, it is a great rocket to fly on a football field on C motors, ...

Builds

Big Bertha with custom add ons. By Kevin McKeever (December 13, 2013)

Related Reviews

Big Bertha (Upscale) By David Fergus
This is a scratch 2X upscale of a popular Estes kit. It features a 3 inch diameter body and PML components (except the nose cone, which was turned on a lathe out of solid pine). It weighs 3.5 pounds and is 45 inches tall. A 36" long, 3" diameter quantum body tube was ordered with fin slots custom cut for .062" G-10 fins. The G-10 fins were ordered custom from PML and cost $8.50 each. They ...
Big Bertha (Modification) By Dennis McClain-Furmanski
Brief: Big Bertha modified for rear ejection. Modifications: This is a Big Bertha modified so that the motor tube extends nearly the length of the body, and acts as a piston upon ejection. Recovery is nose first, making the rocket appear to be coming in upside down. I call it Ahtreb, which is Bertha backwards. Essentially the motor mount assembly is not glued into the body tube, but it is ...
Big Bertha By Darren Longhorn
Beg Birtha Anyone remember Rocket Services? No? How about "Pitfield" motors? Ah, thought some of you might. Well, we don't see them around so much as in years gone by, but there are still a few around. In fact, I stumbled across a cache of them recently and thought I should build something to fly them in. I'd never actually flown a Pitfield motor before. Watching other ...
Big Bertha (Scratch) By Bob Fortune
Big Bad Bertha Premise: Find out how bad Bertha can actually be. Fun Facts Just because your jaws are wired shut doesn't mean milkshakes aren't part of the food pyramid. That's not a stool she's sitting on. Starting point: Estes Big Bertha Rocket kit # 1948 Additional parts needed: LOC 38 mm motor tube, 18" LOC 38 mm coupler ...
Big Bertha (Modification) By Karl Upton
How To Convert An Estes Big Bertha Into A Payload Rocket Purpose and Design I need a series of payload rockets to carry experimental flight recorders/dataloggers into the Troposphere. The BBPC is something I came up with after a scratch-build payload rocket project that was enjoyable, but I don't always have the time for such a grand project. The BBPC solves that problem. I am a big ...
Big Bertha (Modification) By Kevin Johnson
Took a Fat Boy kit and added Big Bertha like fins to make a Super Baby Bertha. Modifications: NARHAMS held a Fat Boy theme sport launch this month, and I was looking for something different to do with my last Fat Boy kit. I had just finished repairing my Super Big Bertha when inspiration struck. I have a Big Bertha, Super Big Bertha and a Baby Bertha, why not a Super Baby Bertha? Build the ...