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Are there any commercially made blast deflectors that'll fir around a 10/10 rail?

I logged onto the ROCKETS magazine site to download some of the back issues and got this warning:'  This site is not secure This might mean that someone’s trying to fool you or steal any info you send to the server. You should close this site immediately.  Go to your Start page Details This...

I have a 6 ft long 1010 rail and I want to construct a launch pad around it. What are the pros and cons of doing this and how much modification is needed on the basic Jawstand

Okay. I designed a large tube finned rocket in RockSim. I put the values in Thrust Curve and got what it considers appropriate engines. Thrust Curve gives an altitude of 730 ft with a GT-80 and RockSim, using a GT-80 as the motor, gives an altitude of 1800 ft. Any thoughts about what the two...

I notice that no one is carrying the F-67-X Econoline motor.....any reason for that?

Do the above mentioned motors have a "lip" that can be used as a motor block?

Can motors not certified by the NAR, i.e. Cesaroni motors be used for certification flights?

1 male minority, 1 white woman, 7 white males...……….so much for diversity

The following is a recent Facebook post: OK MY FRIENDS, HOW DO I GET MY "PHOTON PROBE" RENAMED "DONNIE RONKO" OUT OF THIS TREE? APPROX 80" HIGH AND ON THE END OF A 12' LIMB THAT IS A LITTLE SKETCHY. THIS WAS "DONNIE'S" 11TH FLIGHT AND I WANT HIM BACK ;) OPTIONS: #1- CLIMB TREE LIKE A MAN AND...

What's the best temperature and humidity level to use rattle can paint as a primer and a finish coat/

What's the lightest available altimeter that will record the length of the flight time as well as the altitude achieved?

https://www.discountrocketry.com/modelrocketsus-expert-series-crayon-rocket-p-1941.html

I'm thinking of building a model with 4 A-10-P motors. I'd like to set an altitude record for that particular cluster. What would I need installed in order to fire an ejection charge to recover the flight? I'm thinking about using a BT-55 or BT-56 body tube

Kinda thin on the discounts compared to other years..........

"Be Polite. Be Professional. But have a plan to kill everyone you meet."

The specific motors: The Aerotech E-15, the Aerotech E-30 and the Aerotech F-32. What igniters will successfully ignite them? First Fire Juniors? Estes Sonic Igniters? Thanks!

The title says it all

I am building a tube finned rocket for a level one attempt. I have 5 feet of BT-60 tube, reinforced by BT-60 coupling material as the base airframe. Should I run a stuffer tube up the middle of this airframe to insure the ejection charge will deploy the laundry? I'm going to use a DMS Aerotech H...

I'm working on a project that has a 3.0 PML Quantum Tube airframe strengthened with a coupler material. The Quantum tube has 4 slots that match 4 slots in the inner coupler material. I have the dimensions of the fin set, but how do I compute the correct "width" of the tab that will connect the...