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

Madcow Rocketry - Bomarc (Kit)

Manufacturer:Madcow Rocketry
Diameter:2.6000 inches
Length:45.2500 inches
Skill Level:3

Construction Rating:
Overall Rating:

Contributed by Ken Lord


I built this kit several months ago. It was a challenging, but fun, kit with a lot of pride when completed.

I have not launched it yet but plan on soon with the G77R-7.

Read the rest of the review ...

Today's Featured Flyer

Jeff Boldig

AKA: Handeman

Location: Stafford VA

Certification Level: L3 Tripoli

Club Memberships: Triploi Central Virginia #25

Favorite Rockets: Packers Backer (a Binder Design Thug)


I'm a BAR and have been flying again since 2003. 

I'm a member of Tripoli Central Virginia #25.  Our launch site is called BattlePark since it is located on the Cedar Mountain Battlefield near Culpeper Virginia.

I earned my Level 1 certification in 2007 with a scratch built, dual deployment rocket on an Loki I110 moonburner motor to and altitude of 4,200 ft.

My level 2 certification flight in 2009 was with a K695R to 6,828 ft.  The nose cone was lost so I put one on from another rocket and flew it again an hour later to get the cert.  As of 5/12/12 that rocket, called GrapeShot, has flown 15 times now, reached 9,559 ft and Mach 1.2.  It's the workhorse of my fleet and has taken a lot of punishment over the last three years.  It has been solid and never need a repair, knock on wood! ;-)  12/8/12 zippered the payload tube on GrapeShot.  Don't know how.  The apogee deploy worked, it was falling and the main RC controlled chute deployed but never opened.

Had my first motor CATOs in January 2014.  Both Hobbyline G64W-10 motors had blow by past the delay grain and used the powder well as a second nozzle.  The fwd closures were toast, as was the rocket DNA.  I believe the delay insulator was too small, the delay grain would fall out of the fwd closure. 

I got my Level 3 certification on 3/29/2015 at BattlePark.  I flew a Performance Hobbies Performer 150 kit on a Loki M1882LW motor.  The rocket weighed 54.4 lbs at launch.  Unfortunately it was the first rocket in 12 years that I landed on Cedar Mountain.  It hung up in a pine tree about 90 ft up.  I got my certification though.

Favorite Quote:

If you don't use your head, you have to use your feet.  -My Dad

Club Home Page:

Visit Jeff Boldig's

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eBay Charity Auctions

Estes Mercury Redstone Model Rocket Kitshopjonrocket 6$15.45About 3 Days
Histiocytosis Association
Estes MIRV Model Rocket Kitshopjonrocket 0$8.54About 4 Days
Histiocytosis Association

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Today's Featured Photo

Too Rollin' (Red)Stoned

esl 148 003.jpg

Photo by Dick Stafford

Today's Featured Video

EARS - Andy's Level 3 "M" Rocket - Casio EX-F1 High Speed Pad Cam

View our collection of about 5,800 rocketry videos.

Featured Rocketry Blog Posts

Odd'l Rockets: An Odd'l Parachute Endorsement!
A post from TRF: From Jerry - "I love using my well used/broken in 18" JonRocket parachute. There are no more memory fold lines. It's very soft and fluffy. Even the shroud lines are super soft from all the talc and not hard and whiskery. I have had dozens of flights with this chute and it just gets better like a well worn hat or shoes." Hi Jerry, That's good to hear! I designed those parachutes for JonRocket and BMS. They are also used in RSR amd Odd'l Rockets kits. My goal was to produce the best LPR parachute out there. The chute material is 1.5 mil thick, a bit thicker than most kit ...
[Read More]

Model Rocket Building: Estes Lynx, Kit #7233, Build Part 1, Parts
This is one of the two newer "T" engine builder's kits, The Lynx. The Lynx is brother to the other new mini engine kit, The Scorpion. I picked the Lynx over the Scorpion simply because I liked the design better. All the parts are of high quality. One of the BT-5 Intake Tubes was a little out of round. Not a problem, you only use half the tube on the cut intake. These are the small cooling vanes that go around the outside rear of the engine mount tube. These are tiny! I'll have to fill and prime them before gluing on the tube. Sure you don't have to do this, but filling ...
[Read More in This Series]

Model Rocket Building: Lonnie's Shroud Line Hook
Did you ever have trouble getting shroud lines through the tight loop on a snap swivel? Lonnie Buchanon showed me a tool he made at the last R.O.C.K. launch. TIP: The end of a stiff wire is bent in a tight, long "U" shape. Hook the "U" around the shroud line loop, feed and pull it through the swivel end. Simple and effective.
[Read More] Blog: 2015 National Sport Launch Photos and Video
The Rocketry Organization of South Carolina at Orangeburg (ROSCO) hosted the National Association of Rocketry’s 2015 National Sport Launch over Memorial Day weekend. The three-day event featured flights by rocketry enthusiasts from around the world. [View More of Roger and Bracha Smith’s Photos of NSL 2015] Saturday’s weather featured bright blue skies and a bit of wind. [View More of Kevin Boyd’s Photos from NSL 2015 Day 1] Saturday night ended with a night launch. Though Sunday began with the same, clear blue skies that we had on Saturday, ...
[Read More in This Series]

Model Rocket Building: MRN Idea Box TIP- From February 1969
Mojo 1986 was selling some older Estes Model Rocket News (MRNs) on Ebay. For me, one of the most valuable pages was "The Idea Box". I did some screen grabs and will feature some older ideas that still have some value today. "This safety cap by Hervert H. Maston of Lavonia, Georgia works well as a wind direction indicator in addition to its primary function. The tube may be a plastic straw or an LL-2D launching lug. The flag may be of red plastic tape or of painted PRM-1." How many eyes were poked by people leaning over the launch rods? Launchers are typically low to the ground and I'm ...
[Read More]

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Rocketry Deals

Product NameList PriceSale PriceDiscountStore
Estes 302264 12 inches Parachute$7.99$3.3757.82%
Dremel 4000-6/50 120-Volt Variable-Speed Rotary Kit$269.58$131.9951.04%
Estes Recovery Wadding$7.99$4.1348.31%
Estes-Cox Corp 2302 Solar Starter$8.49$4.4947.11%
POOF Strato Slam Rocket Battle Blast$36.99$19.6946.77%
Estes Chuter 2 Model Rocket Kit$19.99$10.7146.42%
Estes Eliminator XL Launch Set$49.99$26.9946.01%
Estes Flutter-By Model Rocket Kit$12.99$7.7140.65%
Badger Air-Brush Company Minitaire Color Paint Set with Color Coat/Paint Retarder$271.40$163.1239.90%
Estes Xarconian Cruiser Model Rocket Kit$27.99$17.5137.44%
Estes 302243 1/8 inches Two-pieces Launch Rod$7.99$5.0936.30%
Estes Mosquito$7.99$5.1635.42%
Estes 1260 No. 2 Estes Sky Writer Kit$12.99$8.4135.26%

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