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How long to wait to prime / paint over Gorilla 5min Epoxy ?

Attempting my L2 on Feb 16 and I want to use an altimeter to get the actual apogee height rather than just guessing with the sims. What's the best way to attach the altimeter to my shock cord?

I want to buy, construct, and fly a 5" Madcow Terminator for my L3 with a 75mm motor mount someday. Due to the convergent section at the bottom, I am limited to 75mm. If I am to build this kit, I will build it was designed with the convergent section and fly with a 75mm motor to keep the cert...

I forgot to leave a little bit of the motor mount tube sticking out of the back of my rocket to center my flanged 54mm Aeropack retainer, so I was thinking of opening the motor I just recently bought and sticking it in the MMT to use as a centering device, then drilling the holes for the...

So I am competing in the Battle of the Rockets 2019 competition, and although propulsive landings aren't allowed, I did the math and really want to build a test bed just to get the experience and learn a bit about this subject. I've seen model rockets do propulsive landings in the past with...

Me (5'11") and my dog (2'4") for scale (LOC 5.54 Patriot)

Hey all, I just completed my L1 on a 3.1 LOC IRIS and would like to try out reloadable motors. What's the best motor to start on for a 38mm mount?

I'm looking for organizations that like to write grants to or donate to educational programs that have an emphasis on STEM education with a focus on amateur rocketry? I run a 501c3 nonprofit program in Atlanta, Georgia that aims to get more students interested in aerospace engineering through...

Need to add about 8oz of weight to a 3.1"OD nosecone for a launch coming up very soon to increase stability factor from about 0.50 to 2.00. More weight is better since the launch site is small and I'm already having to shoot into the wind to prevent too much drift on the way down. Hopefully I'll...

Recently purchased a 5.54" Patriot with 3 centering rings which are oversized by about 1/16". What's the most effective way of quickly reducing the diameter on it? Can't see much improvement even after about 20min of sanding with a high grit sanding block

I was wondering what the best method is to cover up the spirals on body tubes and the indentations on fins and nosecones? I'm using Painter's Touch Filler Primer, 3 coats, with sanding to achieve a smooth look, but I also have materials on hand to do a 1:2.5 dilution of water:Minwax Wood Filler...

Anyone ever done this competition? What are your thoughts?

Has anyone here ever built a chute release system that didn't involve BP? My friends and I want to build a rocket motor from scratch but don't want to deal with the legal red tape of black powder that's required for most release systems, so we were thinking that we might be able to eject the...

I need to buy a large amount of adhesives for my 12 person rocketry team. We figured out we'd need to buy 24 JB Weld packs or Gorilla epoxies at the Home Depot which can get pricey, so I was wondering what's the best adhesive to use with HPR that you can buy bulk on the cheap?

Hey all, I run a high school rocketry team called Atlas Rocketry that is focused on getting more teens interested in STEM through amateur rocketry. We're looking for places where we can get 12-15 mid-power rocket kits at an affordable price, or even donated. Before our team members start...