Welcome to (formerly Essence's Model Rocket Reviews or EMRR). is the home of almost 5000 reviews of rocketry kits and products. Written by visitors to like you, the reviews cover everything from low-power model rocket kits to high-power rocket motors.

The site's Flight Log allows you to record and share your rockets and their flights.  The Builds feature helps you document your rocketry projects. 

At, you'll also find a large collection of rocketry resources such as a list of rocketry clubs, a calendar of rocketry events, and large libraries of OpenRocket design files and Rocksim design files. A number of rocketry tools and calculators are available to help you design, build, and fly your rockets.

As you explore, you'll also find a number of fun things such as a huge library of rocketry videos and a collection of photo albums.


The mobile site makes it easy to add flights to your Flight log using a smart phone or tablet. Visit:

The mobile site allows you to view and enter flights in your Flight Log and to view and add rockets to your Rocket Gallery using simple controls designed for smartphones and tablets. You must have an existing account which the mobile site will ask you to log into.

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Today's Featured Review

Clone - Optima (Scratch)


Construction Rating:
Flight Rating:
Overall Rating:

Contributed by Bill Eichelberger


The Estes Optima was the alter-ego of the Estes Shadow, the same rocket with different decor.  When I decided to do a clone of the Optima, the only BT-80 tubing I had on hand was three different lengths that had all been scraps from other projects.  Because of this, my clone is likely the only one with a clearly defined fin can and an extra coupler.

Read the rest of the review ...

Today's Featured Flyer

Jeffrey Gortatowsky

Location: Redondo Beach, CA. USA

Certification Level: L2 NAR

Club Memberships: NAR, SCRA, ROC, MDARS

Favorite Rockets: The Launch Pad Osiris


I was a child of the 1960's and the dawning of the space-age. Aerospace and Astronomy were my passions then and still are to this day. Back then Model Rocketry was cool. Even science was cool. In the mid-70's I joined the Air Force and my rocketry went dormant for a while.

Fast forward to 1996. I moved to southern California (from Rochester NY) and I became a B.A.R. I was very active in ROC (NAR #538) from 1998 to 2002. In 2003/4 things changed professionally and again my rocketry went into storage. In 2010 things changed again, and rocketry came out of storage. So maybe I am a Born Again and Again Rocketeer. :)

I live in Southern CA with my wife and 6 wonderful kitties. I am a software architect specializing in Java and open source based web scale architectures.

Other activities I enjoy are building and flying wooden R/C Gliders (you know old school kits), R/C Helicopter... try to learn on the simulator, Astronomy, live theater, fine dining, cocktails, and wine tasting. I am an Atheist. Strangely I am not an amoral axe murderer, though apparently in religious circles I am considered so.

I enjoy all aspects of Rockets. 1/8A through M. I have just as much fun launching a MicroMaxx Rocket as a K impulse rocket.




Favorite Quote:

"(Scientific) Skepticism is not a set of beliefs, it is a set of methods for asking questions about reality." -- Doctor Steven Novella

Club Home Page:

Facebook Page:

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Today's Featured Photo

Aerial Photography

The Bandit Booster beginning to deploy its parachute at 700 feet.

Photo by Rich DeAngelis

Today's Featured Video

1/72 Space Shuttle Model Test Flight, October 1998, #3

View our collection of about 5,800 rocketry videos.

Today in Rocketry History

On This Date in History

1972-03-03 - Pioneer 10 Launched
Pioneer 10 was launched on March 3, 1972. In June of 1983 it became the first spacecraft to venture beyond the planets.

20500 Days Ago

1959-01-16 - Mabel's First Motor
Vern Estes's "Mabel," the first automated model rocket motor making machine, produced it's first production motor on January 16, 1959. During the first production run, the machine produced 500 motors which were sold to Model Missiles, Inc. for seven cents each.

Featured Rocketry Blog Posts

Model Rocket Building: Estes Scout In Space
Here's a great story about Astronaut Jay Apt and the Estes Scout that flew aboard the Shuttle Atlantis in 1991: CLICK HERE This Scout will be part of the Model Rocket Display at the Seattle Museum Of Flight. The display will be dedicated at the upcoming Seattle NARCON held February 20-22.
[Read More] Sponsors UCF's Participation in NASA's University Student Launch Initiative
The Students for the Exploration and Development of Space at the University of Central Florida (SEDS-UCF) have created a Kickstarter campaign to raise funds to support their participation in NASA’s University Student Launch Initiative (USLI) competition. is happy to support SEDS-UCF. We ...
[Read More]

Model Rocket Building: Asking Permission Might Be A Good Start!
If you follow the blog, you might recognize this rocket. It's my two engine cluster model called the Big Girtha. It was adapted from a Quest Big Betty kit. I took this picture before it was launched at the Tampa TTRA monthly. Then I saw it in a EBAY listing. Maybe I should be flattered, but I'm not. A vendor was selling his 808 "Spy" cameras using my picture. Farther down the Ebay listing is a link to my YouTube video from the flight. I didn't buy and build the rocket, buy the camera, fly it, edit the video and post it for somebody else to make a profit. Build your own model, fly your ...
[Read More]

Rocket Dungeon: Vintage rocket powered monocopter may be up for grabs
Early in my blogging days and near the peak of my fascination with monocopters, I found some photos of the Rotary Space Ship that was manufactured by the Brown Manufacturing Company in the '50s/60s. I was recently contacted by one Richard Moore, who has owned one since around then. He says he may be putting it up on eBay so, if anyone is interested, you should keep an eye out. If you want to make an offer before that, I can forward your contact info to him. He was also kind enough to provide some nice photos:
[Read More]

Model Rocket Building: New Products Reply From Estes John Boren
From John Boren (JumpJet on TRF): "Sorry I haven't posted in this thread yet but I couldn't find it and since I seldom go to the Watering Hole section it was by chance I found this thread since it was linked in another thread. As you can see my original question or statement if you wish to call it that instead, isn't an easy one to answer or for a company to act on. There are some common wants but for the most part everyone wants something different as their number one thing, which is common no matter what the topic is. I see more engines and parts are pretty much at the top of the list. ...
[Read More]

[View All Featured Posts]

Rocketry Deals

Product NameList PriceSale PriceDiscountStore
Estes 302264 12 inches Parachute$7.99$3.0961.33%
Estes Nike Smoke$79.99$39.1951.01%
Dremel 4000-6/50 120-Volt Variable-Speed Rotary Kit$269.58$139.0048.44%
Estes Recovery Wadding$7.99$4.1847.68%
Estes Ventris$64.99$35.4945.39%
Badger Air-Brush Company Minitaire Color Paint Set with Color Coat/Paint Retarder$271.40$155.3142.77%
Testors Promotional Enamel Paint Set$13.00$8.0338.23%
Estes Satellite Silver Crayon Rocket$14.99$9.3337.76%
Estes Reflector Flying Model Rocket Kit$23.99$15.4935.43%
Estes 302267 18 inches Parachute$7.99$5.1835.17%

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