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it was about 2.5 times the length of the rocket and it is made of kevlar.

I didn't mention it in the question, but we did put 5-minute epoxy over the top after all the glue dried. But I have a question about using plywood bulkheads and centering rings. If we were to use them, would wood glue or epoxy work to effectively glue them to the coupler. Also, If we did that...

I unfortunately can't send pictures because we are currently on break and I don't have access to the rocket but ill do my best to describe what happened. While building, I made sure we made the attachments EXACTLY as the video showed. We first cut a piece of paper the same size as he has in the...

Hi everyone, my TARC team had our first launch today and we did pretty, well but we have a few quick questions: Our whole rocket is made out of BT-70 tubes, so we use a coupler with a bulkhead inside to separate the bottom section from the upper(payload bay). Because of this, two problems have...

Hi everyone, my TARC team had our first launch today and we did pretty, well but we have a few quick questions: Our whole rocket is made out of BT-70 tubes, so we use a coupler with a bulkhead inside to separate the bottom section from the upper(payload bay). Because of this, two problems have...

Thanks for the responses guys. I have a few more questions: 1) Last year, we had trouble getting the eggs out of the tube after the flight to check if they were cracked. This was because the foam protectors fit very tightly inside the tubes to protect the eggs. In the end, we just put a blukhead...

I will try to answer everyones questions here: Yes, thanks for the advice but we did change it to an Aerotech E20-7 engine. The TARC rockets this year are actually much lighter than previous years because instead of carrying 2 or three eggs, we only have to carry one egg for the payload which...

Thanks everyone so much for the quick responses. We are using an E11J motor right now but the optimum delay is 5 seconds even though every motor I found online comes with a 3 second delay. The E20 also works but its a single use motor and we want to use a reloadable one. sadly, our sponsor has...

Hi everyone, I'm not sure if this thread is still active but I'm leading a TARC team for the first time this year and I had a few questions. 1. We are using OpenRocket to model the rocket and everything looks fine but the flight time looks a little unrealistic. We are using two body tubes and...

Hi everyone, I'm leading a TARC team for the first time this year and I had a few questions. 1. We are using OpenRocket to model the rocket and everything looks fine but the flight time looks a little unrealistic. We are using two body tubes and the weight of the rocket is around 300g right...

I am leading a TARC team this year and I was thinking that since only one width is required, we should just make the whole rocket out of BT-70 tubes. Is this better (more stable/predictable) than connecting BT-70 tube at the front to a BT-80 tube at the back and using a transition? If so, are...

I am leading a TARC team this year and I was thinking that since only one width is required, we should just make the whole rocket out of BT-70 tubes. Is this better (more stable/predictable) than connecting BT-70 tube at the front to a BT-80 tube at the back and using a transition? If so, are...

Here's a video of our most recent launch. If you watch the first 8 seconds of the video (especially slowed down to .25 speed), you can see that the rocket kind of shakes or vibrates on the way up. Iv'e been looking on the internet and the only reason I found for this is "thrust oscillation"...

thanks to everyone that replied but I have another question. Our rocket flies to a good altitude but comes up a little short on time: around 39-40 seconds. We are currently using 2 12 inch parachutes right now and I think using the 2 15 inch parachutes will slow it down too much. What can we do...

what should I use to attach our fins to the rocket, apogee says to use wood glue i think but I dont know if thats strong enough.

quick question, can I pack an RMS system the night before?

my computer keys arent working I MEANT 779 FT. 80 ft from the goal

im sorry i meant 179 m which is 587 ft

How long is your launch rail, and what speed is the rocket simulated to have gained at the point of leaving the launch rail? If below ~50 ft/s, it may be liable to "wiggle" until speeds increase, and aerodynamic stability is achieved. How windy was it the day of the flight? Flying into the...

we tried flying our rockets last weekend and I've attached the video of the launch. It went about 80 ft under the limit but I suspect the motor (F39-6t) was too small to get it to 856 ft. We plan on changing to an f35-8w but I've been looking at the video and I noticed something. If you look at...