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

Semroc - Micron

Diameter:0.7590 inches
Length:9.2000 inches
Skill Level:1

Construction Rating:
Flight Rating:
Overall Rating:

Contributed by Bill Eichelberger


The Semroc Micron was part of my first order from Semroc back in 2003.  I built it and the Skyhook side by side, and because of these two became enamored with the Semroc way.  The sleek Skyhook and the sturdy Micron combined the best that was available in the hobby at the time, reproductions of classic kits with updated recovery systems and laser cut fins.  Rocketry Nirvana, and I inhaled deeply.


  • ST-7 body tube
  • Balsa nose cone
  • Laser cut fin sheet
  • Screw eye
  • Thrust ring
  • Kevlar and elastic shock cords
  • Crepe paper streamer

Read the rest of the review ...

Today's Featured Flyer

Duane Boldt

AKA: RoboRocketry

Location: Tucson, AZ

Certification Level: L2 NAR

Club Memberships: NAR, SARA

Favorite Rockets: Doug Stout 4" ARCAS, PML AMRAAM 4, Semroc Saturn 1B & SLS Brighton, Madcow Arcas HV


- Software engineer for over 20 years and still lovin' it.

- Maintain and host and related blogs and video sites.

- Enjoy building and flying rockets with my kids and other students from their schools.

- Taught rocketry classes at elementary and middle schools for the last 8+ years and have enjoyed it very much.

- In 2009, started Sonoran Science Academy - Broadway's RoboRocketry Club. Members are working on completing their NARTREK Cadet certificates and designing their own rockets.

- 2010 Robert L. Cannon Educator Award with Sonoran Science Academy

- In 2010, started BASIS Tucson Middle School RoboRocketry Club. Members are working on completing their NARTREK Cadet certificates and designing their own rockets.

- Completed NARTREK Silver and working on Gold Level myself.

- Have managed to fill our house with rockets over the last several years.

- Passing on a love of rocketry, robotics and technology.

Favorite Quote:

"Let's fly high where only eagles dare!"

Personal Home Page:

Club Home Page:

Visit Duane Boldt's

Visit the Who's Who directory.

Today's Featured Photo

TTRA Launches

June 2013 Launch

Tom's Little Lunar Express

Photo by Roger Smith

Today's Featured Video

Rocketry - Estes Historic Document - 1961

View our collection of about 5,800 rocketry videos.

Featured Rocketry Blog Posts

Wayne Hill's Blog: Full Scale V2 Model Successfully Launches
A world record setting full scale V2 model launched at Thunda Downunder in Australia. It was a spectacular Low and Slow launch. Height – 14.04 metres. That’s over 46 feet high! Mass at lift off – 280kg or 617 lbs. Powered By CTI O motor Video of Launch on Facebook You can read more about this [ ...
[Read More]

Model Rocket Building: Peter Alway Saturn IV Build, Part 1, Plans and Parts
This model was from Peter Alway's Home Page. I can't seem to find it now! If anybody has a link, let me know. The website had plenty of sport and scale plans including a Vostok, Saturn I and a Flying Rabbit that looks better than the old Estes Cloud Hopper. You can get Peter Alway's books: Rockets of the World HERE and Scale Bash HERE Both highly recommended! There's one model that has been on my "to-do" list for a while. The SATURN IV! This is Peter's "psuedo-scale" design of a Saturn that could have existed between the Saturn 1 and Saturn V, the Saturn IV. Full resolution plans aren't ...
[Read More in This Series]

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]

[View All Featured Posts]

Rocketry Deals

Product NameList PriceSale PriceDiscountStore
Estes-Cox Corp 2302 Solar Starter$8.49$3.9054.06%
Estes Recovery Wadding$7.99$3.8252.19%
Dremel 4000-6/50 120-Volt Variable-Speed Rotary Kit$269.58$139.9948.07%
Estes Cosmic Interceptor Model Rocket Kit$48.99$25.5947.76%
Estes Longneck Express Model Rocket Kit$15.99$8.3947.53%
Estes Chuter 2 Model Rocket Kit$19.99$10.7146.42%
Badger Air-Brush Company Minitaire Color Paint Set with Color Coat/Paint Retarder$271.40$149.9144.76%
Estes Nike Smoke$79.99$45.9842.52%
Estes Eliminator XL Launch Set$49.99$29.9940.01%
Testors Promotional Enamel Paint Set$13.00$8.0338.23%
Estes Ventris$64.99$41.4836.17%
Estes 302264 12 inches Parachute$7.99$5.1136.05%
Scientific Explorer's Meteor Rocket Science Kit$22.00$14.1735.59%

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