Looks like a stylised Ariane 1. Shorter aspect ratio mainly I think. Thanks OTT. I think you are correct. Looks like a short, fat cartoon version of an Ariane 1. I like the look of this toy, but think I'll build a longer thinner version for better stability. Somewhere between the toy and the real t...

I am hoping someone is able to help identify this ESA rocket. My son bought this toy and I thought it would be an interesting scale build (with oversized fins). But I need more info. https://i.ibb.co/ryhNY59/ESA-Rocket.jpg https://i.ibb.co/myPg08j/ESA-Rocket-2.jpg I did some Googling but I can't fin...

And a few days later the build is complete. https://i.ibb.co/F5rVQ67/IMG-8633.jpg https://i.ibb.co/gzh5Msk/IMG-8635.jpg https://i.ibb.co/6spYVtS/IMG-8634.jpg I have done nothing to the 3d printed parts to finish them. I decided to just leave them as they are. I could have spent hours sanding, fillin...

Looks great.

I have always wanted to learn to weld.

Your welds look great for someone who is learning.

Look forward to seeing it when it's finished.

I bought a new 3d printer and to celebrate I thought I would teach myself how to use Fusion 360. Until now I have been using SketchUp, which served a purpose, but had some limitations. I thought I should put my very limited Fusion 360 skills and my new printer to the test with a fun, simple rocket d...

Great update Derek! The fluro colours really stand out. I didn't realize that you had such problems with the fold in the sleeve. The carbon fiber sleeves we use have a similar fold, but we've never had an issue with it once it was wetted out and put on the mandrel. I'll have to keep your workaround...

After a few delays for various reasons I have finally started work on the body tubes. As mentioned previously I wanted to strengthen the cardboard tubes with fiberglass sleeves: https://i.ibb.co/6bn9mw9/IMG-7245-2.jpg I wrapped 2 couplers in Teflon tape and inserted them in either end of the body tu...

Love this:

If you want to know what diameter it’s using then look at the measurements for CG and CP, I think it will be the largest diameter. Bigger question is what is stable for an odd shaped rocket. The caliber rule is based on an assumption that the rocket is of normal proportions, an alternative rule of ...

OpenRocket is giving a stability caliber of approximately 1.6x for some J motors. This is a bit low for my liking, especially if I end up building the back end a little heavy. But this stability is calculated based on the diameter of the rear body tube. Does anyone know if there are special conside...

I use 3mm push rivets like this for my rockets: images.jpg If you just push the outer in, and completely remove the center pin, the shear force is significantly reduced for an easier ejection. Thanks OTC. I have some rivets that look very similar to those, but I also have some of these sheer pins: ...

That's an interesting design Derek. I don't think I have seen a motor mount go through the transition, but looks good! With a draggy back end like that, will you be using shear pins on the nosecone to avoid drag separation, especially if you end up adding nose weight? Yes, I think shear pins will b...

This thread (and this project) had gone a little dormant as I have been procrastinating. The design of this rocket just wasn't doing it for me, so I decided to make some changes. It's my L2 so I want it to be right. :D The result of lots of pondering is this: https://i.ibb.co/hyxL95j/Screen-Shot-201...

A few interesting opportunities in NZ.

Hi Peter, Welcome to the forum! There have been a few posts on here in the past few months from people that live near Newcastle, the Hunter valley and Coffs Harbour. Almost enough to start a club :D NSW Rocketry Association is your nearest club. http://www.nswrocketry.org.au/ The club members launch...