Search results

Howdy Everyone, No long build thread today but I wanted to share my latest build that will be flying this weekend up to around 7100' on a K740. Some of the features of the build include: -3D printed E-Bay sled with RRC3 mounting holes, Action Camera holder and 9V battery holder -Camera...

Hello again TRF, Right now I'm working on quantifying some of the parameters surrounding the recovery system on our collegiate sounding rocket team and was hoping to find some insight from some of the experienced members. I have being trying to use the infinite mass method for analyzing...

Howdy All, After having this kit since July of last year I'm finally diving in and getting the project rolling. I've spent a lot of time on OpenRocket looking at the design and have finally decided on the specifications of the rocket that I would like to build. Im looking to launch on a...

Hi everybody! For my fellow rocket geeks out there who love a good numerical approximation I made an Excel sheet that is based on my Level 2 Certification rocket that Im planning on launching come spring. No deep questions looking for deep rocket knowledge tonight just thought that it is...

Hey Rocketry Folk, Got some questions for ya regarding my Cert. 2 flight that I've been working on over the course of this fall semester at Texas A&M. I am taking the 5.5" Fiberglass Honest John kit and making it a dual deployment rocket to fly on a Cesaroni J740. Im still tinkering with...

Hey Guys, Im the team leader of the R.L. Turner High SchoolTARC team in Carrollton Tx. We achieved our goal for the year and are headed to the National Competition for the first time as a team in Virginia this May. Our team has been working hard since August designing, experimenting and...

OH GOD! I... CAN'T...Resist... But I don't... Have ...the money!!! https://www.madcowrocketry.com/Fiberglass_Honest_John_Rocket_p/k-181.htm Just thought ide share this really cool kit! I'm sorry for anyone that is instantaneously compelled to buy this kit with their last $300 haha Kinda...

Hello Everyone, My TARC team and I are on our way to finals in Virginia this May and are fine tuning our design with rocksim. At this point we have made a rocksim file but the rocket itself wont get off the pad. We've run the simulation more than a few times now and have already read the...

Howdy Guys, Im looking at taking on a pretty ambitious project for my skill set but here it is! (No Name Rocket) -5.38" BT -Cluster 3 x 38mm MMT -56" tall -Dual Deployment Let me know what'cha think guys. Im looking for someone to look over the Openrocket design and point out any...

My TARC team and I have been launching our competition rocket nearly every other day for the past couple days, dialing in the altitude and descent time. We ordered a batch (12) motors from Estes directly and from this batch have had two motors fail in the past two launches that we have had. My...

Hello fellow Rocketeers, On Black Friday I picked up an Honest John all fiberglass kit from MadCow Rocketry and across the past two months have been working off and on making this awesome rocket. I would first like to say WOW! This was my first experience with any of the MadCow Rocketry and I...

Well im getting an itch...an itch that is to play with another kind of rocket, a water rocket that it! A 2 liter bottle and a bike pump kinda rocket! I want to tinker around with water rockets, has anyone played around with different designs and bottles, different propellants and variations of...

Hello, Im currently working on a Madcow Honest John and am at the point where all the fins are on with external and internal filets but I would also like to spray some kind of expanding foam in between the fins before i glue the aft centering ring on. What kind of foam should i use for...

Hello everyone, I just recently took my first crack at making layered fins and at this point I need some suggestions. Each fin is a sandwich of a 1/16" fiberglass sheet between two 1/8" basswood pieces that have been sanded to shape. After the sandwich was glued toghether I fiberglassed...

Hey guys, So I got a little excited when my Cesaroni I212 reload came in the mail the other day and accidentally spilled the three individual grains out of the black tube. What is the order of the fuel grains in respect to the counter sunk ends of the fuel grains and the black plug like thing...

Howdy Rocketry Forumers, Im still a high school student and right around the corner is homecoming and the dance that follows, being that my days are spent making rockets I figure what better way to ask my girlfriend to homecoming that with a rocket! How in the world are you gonna do that...

Howdy Rocket Buddies, With a couple spare BT-70 tubes and an Estes 24mm mmt laying around I had to do something with them ;) What I've thrown together is a is a 2.2" diameter, to be 28.5" tall rocket that will hopefully eat Estes E9-6 motors all day long. Let me know what you think, its...

I'm looking for a CTI 38mm 3G Casing for my level one cert rocket. If anyone has one they would be willing to sell I would be all ears as to what price I could take it off your hands for. If you do have one you willing to sell just send me a pm with the condition & price and we will see where...

Hello Fellow Rocket Enthusiasts, This weekend is Rockets 2012 down in Fredricksburg Texas and my team and I are very excited because we are going to be launching two scratch built rockets to go Mach 1. We rolled our own fiberglass body tubes made our own fiberglass nosecones and I have...

This is a question that has always puzzled me when it comes to putting together the recovery system. Once the shock cord is attached onto the rocket via an eyebolt or what have you, what is the order of items on the shock cord? Is the parachute attached to end of the shock cord or is the...