My First LDRS -- It's Official!

Yep, it's true. After a few weeks of uncertainty whether it would actually happen or not, it is finally official, and I am leaving tomorrow morning!

LDRS -- Large and Dangerous Rocket Ships -- is the annual Tripoli Rocketry Association meet. It's the biggest high-power rocket launch in the country. Thousands of people will be there, and some of the biggest projects ever.

Believe it or not, I am actually driving. That's okay, I love driving! It doesn't really save any money with just me in the car, but this way I get to bring my own project: Longshot Starkiller, the big two-stage level-2 rocket. While it is uncertain that he will be ready to fly in time, it will at least be great to show it off and talk about it.

I'll be camping at the Flint Creek Campground, just 2 miles from the launch site. There will be lots of LDRS attendees staying there, so hopefully I will be able to meet some new people!

Stay tuned for travel updates, pictures and videos!

2011 Recapitulation

Way back in the beginning of the year I came up with three "Big, Fun Scary Adventures," referred to herein as "BFS Adventures." The first of these was a concrete goal: to obtain my level-2 certification for high-power rocketry. The story of this adventure was a long and comical one:

My first attempt was in June, using my rocket called "Stinger." I used a Cesaroni J285, which is a very small J-motor. For some reason, the flight was just a flop:



Next month I managed to put together an entirely new rocket (can't remember the name of it). It was a big, galumphing rocket made from thick cardboard tubes. The idea was to build heavy so that the rocket didn't go very high so I didn't need dual-deployment. That idea came back to bite me:



So I figured that the third time is usually the charm, and I came out next month with this rocket, which is the sustainer stage of a multistage project.



I figured that I had failed, but we kinda had to rush off at the end of the launch, and didn't talk much with the certifying member afterward. But a few weeks later I got my card in the mail, which read "cert level 2." So that's the story of how I got my level 2 certification.

My second adventure was less than exciting. I set a specific goal to "earn at least $5000 by working and at least $5000 of non-ISU scholarships." This one was also a success. I failed to find an internship, so I worked hard on a sod farm all summer, some weeks working 60 hours! It was quite the arduous ordeal but I earned about $4500 for school. Previously during the spring semester I had earned about $800 from working at Target. So there's my $5000 by working. And I got a pretty nice engineering scholarship for $8000 which helped me stay in school!

My last BFS Adventure was rather vague. "Invent something cool," I said. I'm counting the payload we built for USLI for this adventure. While it was not entirely my invention, I learned a lot of great stuff from being on that team and helped develop pretty cool technology for it. All of the structural components were designed and built by me. A lot of the programming was me, too. One thing is irrefutable: It was cool.

So there's 2011 in a nutshell. Of course, that leaves out 99% of my life, but now you have the 1% worth talking about.

I sense 2012 has some adventures in store that will make 2011 look like a walk in the park. Bring it on!

December Rockets

After a great semester, I now have three whole weeks of holiday to kill. I've already dived into a couple rocket projects, one that I've been working on for a while now, and one that I've been wanting to start for just as long.

The rocket that I got my level 2 certification on was actually designed to be the upper stage of a two-stage rocket. So I'm now continuing work on the booster stage. Where I left off was a messy plywood and expanding foam blob, and today I picked it up again and started working on a fiberglass layup. I figured that today might be my best chance, since it got up to 45 degrees today.

I also want to work on the 38mm minimum diameter rocket I've been planning. I might try doing the layups inside if I have to, but I don't want to fumigate the house with epoxy.

Lastly, if I have time, I might work on a scale rocket for USLI... but more on that later!

[Build pictures]

Fail #3

The failures this summer are beginning to get comical. Sort of like a running gag. I have no explanation for this failure, but it is obviously some sort of altimeter error, or user error pertaining to the altimeter.

As you can see in the video, the drogue charge did not fire at apogee, and then the backup motor-based ejection charge did not have enough power to separate the rocket. Finally the main charge went at 500 feet and saved the rocket. There was no damage, but I still failed to get my certification because not everything went according to plan.

One note about how the rocket fell back to earth. It's interesting how, despite my nearly 4 caliber stability, the rocket flat-spun and at times appeared to be falling backwards. What's with that? I admittedly don't understand how that happens.

Video!

Hopefully the 3rd Time's the Charm

Today was supposed to be Tripoli MN's August launch, but due to bad weather it got postponed until Sunday. Tomorrow I plan to launch the upper stage of my new Complex-L2 project for a level-2 certification attempt. I'll be flying it on a CTI J381SK, and it should reach 3000 feet.

This will be my third certification attempt for level-2 and the last attempt I can get in before moving down to Iowa for college, so I hope it works this time.

I'll keep you posted on the results.

Build Pictures for the 2-Stager!

I have made TONS of progress on my recent project since my last post. The exterior of the sustainer stage is finished, and the inside of the booster stage is finished. I have yet to put in the altimeter bay, recovery system and staging electronics housing on the sustainer, and still need to glass the booster airframe and paint it.

My work on the booster is rather unconventional. I cut out some strips of 1/4 inch plywood and glued them between the fore and aft centering rings. I then wrapped around the entire booster with plastic wrap and filled 'er up with expanding A-B foam epoxy.

I took this rocket to the county fair (it's my last year in 4H), and it got a purple ribbon. So I will be taking it to the MN State Fair this September, which means I will have to come up from college that weekend. I have a good reason to do so, however: If I participate in the State Fair this year, I am eligible to apply for a scholarship, so it is worth it.

Complex L2

You better believe it. It's time to bring out the big guns. I ordered some supplies from Public Missiles last week, and today a big box was waiting for me on the dinner table when I got home from work. Inside were two 4" body tubes, three coupler tubes, and a nose cone.

I am planning to build a two stage level-2 high-power rocket. This will be the biggest project I have ever undertaken.

I also plan to use the sustainer stage to certify L2 this August.