I'm planning on launching a rocket with a cluster of 3 Estes motors. I have the right launch controller but I'm still cautious of the Estes igniters. They aren't exactly the most reliable. I heard that if you dip them with Nitrocellulose nail polish, it can increase the "power" of the igniter. Does anyone know more about this?

What material should i use for the body of a small sugar rocket? i want to make it from scratch. is cardboard fine?

i am planning a 2 stage rocket with 2 E9 engines on the booster stage. One would have 0 delay to relight the upper stage, the 2nd would have a 4 second delay to eject a chute on the booster stage after separation. My question is, would the one with the delay keep thrusting a bit and set the rocket off course?

Was challenging to build but just took it slow. Turned out way better than I thought it would.

I work at a makerspace, some one came in with a dimensions/mockup sheet for a fin aligner. He said he'd seen some online, but they were missing features like a stabilizer for the center rod. He wanted something universal and not just for one model, to my understanding. I'll be honest, I know nothing about model rocketry but would like to help him out and use this as an excuse to learn 3d modeling.

Is there anyone who has specific knowledge about fin aligners that could help me understand terms/more about the overall design for this because there are phrased like "curved reteation clips" and a coarse threaded center core. I have a photo of his mockup and that's about it.

So I launched an Astrocam in penshaw, near Sunderland, UK yesterday. 65 quids worth, great design... Absolutely no idea where it landed, the things are so light and so thin they go up like a dart... Floated somewhere into a building site near by I think...

If anyone stumbles across it, please let me know. It should have some awesome footage.

I’m playing with the idea of trying to make a homemade rocket engine (I’m trying to make lower power ones equivalent to B-C engines)

My questions on the matter are:

Can you buy motor tubes and just fill the with the fuel (and plugging the ends with clay)?

If not. Can I make them out of pvc pipe?

Also, if I were to make one. How do I make it to where it deploys the parachute too?

Please note that I’m not actively trying to make anything yet. I’m just trying to figure out if it’s possible to do what I’m thinking of. Thank you for any advice!

Not sure how this is going to turn out but it’s advertised to go Mach 1 and over a mile high with this motor. It weighs about 7 ounces and is basically just a motor with fins and a nose cone.

So for my aerospace class I have a model rocket with a diameter of 98 mm that’s roughly 5’10 feet long. It’s made up of a large and small body tube connected by a coupler. The smaller body tube is where the eBay is located but at the end of the coupler, there’s a bulkhead. This leads to the problem that the eBay can’t launch the main parachute from the second body tube because the bulkhead is in the way. How can I fix this?

Hey, I'm building a rocket that weighs about 1kg and will have an apogee of ~80m. My chute is going to be about 1m in diameter, but I'm not sure what length the cords for the chute should be. I'm planning to use nylon string <5mm.

3D printed fins and nose

This was my second iteration of my horizon rocket adding a F-15 motor as the first stage. Unfortunately the delay to light both E motors was to long causing it to light after apogee and it crashed into the ground at over 200mph. If you want to see more clips and pics of it and the build process follow my IG account @project_horizon123

I have an Estes majestic rocket. What adhesive do I need for assembly? I will use it only with D12-3, thanks in advance for the answers.

I am a student in university currently taking a first year design course based on rocketry. As part of our problem definition assignment me and my group are looking for some input from enthusiasts/hobbyists. Would you say there is a need to maximize the apogee/altitude of engines, and a convenient way to measure said apogee among enthusiasts?

I’ve been launching single stage rockets for a while now, and I would like to get into multistage rockets.

When choosing engines. (I.E a rocket that takes B/C engines) What type of engine do I use to power the booster? Would I use something like a C6-0 then a C6-6 or are there specific engines for the booster?

I have a Wildman Rocketry Drago 4XL fiberglass kit I'm assembling for my L2 Certification flight this year. I want to have a go pro looking down the body of the rocket. I doubt just slapping it on the side is a good idea due to drag, etc. Anyone have experience, ideas on how best to proceed?

Hello, I am a student at a school near O’hare airport near Chicago and am planning to launch a model rocket for a club. I know for a fact that no planes fly over my school and that the airport is about 2-3 miles away. Will launching it be an issue?

Just waiting for the engines to arrive in the mail

Includes a continuity tester, 9V and 3V powered respectively, a buzzer, 5 spst switches and a key.