May 18, 2004
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May 14, 2004
Ye Olde Rocket Shoppe has details and pictures of the announcement advertising.
Looks like Estes is also coming out with a couple of rocket gliders, a new version of their camera rocket, and a rocket that takes in-flight digital movies.
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May 11, 2004
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May 10, 2004
"Rocket Boy" author Homer Hickam, U.S. Senator Mike Enzi, NASA Associate Administrators Craig Steidle and Adena Loston, Marshall Space Flight Center Director David King, NASA astronauts Jay Apt and Charlie Walker, among other dignitaries.
Mookie and I got to meet Homer Hickam, Senator Enzi, and Jay Apt last year. Good people.
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May 08, 2004
The hobby rocketry community is small and active, so I've talked to most of the rocketeers or shopped at the hobby shops mentioned in the article. This is the perfect example of Homeland Security acting in a way that will not actually make anyone safer, but they can point to it as an example of ways that they're working to protect us. Justifying their existance is what I call it.
For the most part, the article is fair and reasonably accurate. The main point missed though isn't the cost of the new permits, it's the unreasonable storage requirements which are damn near impossible to comply with. more...
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May 05, 2004
Here's a nice newspaper article from King County in Washington state, talking about an all-girl team that's going to the finals of the Team America Rocketry Challenge.
Those finals are being held on May 22, 2004 at Great Meadows, The Plains, Virginia. Open to the public.
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May 03, 2004
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May 02, 2004
Instead of my normal embedded pictures, these photos are clickable links to make it easier for those on dial-up. It's all in the extended entry.
Enjoy. Remember, you learn more from the failures than you do from the successes. more...
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May 01, 2004
The day started with high clouds but the sun burned through now and then. A cold front is moving into the area and intermittent rain has started, but the day was mostly dry. The winds were out of the south and stayed between 5-10 mph.
Culpeper is in the heart of Virginia’s horse country, and the area consists of gently rolling hills dotted with farms. Our route there takes us through the Chancellorsville Battlefield from the Civil War. On the way, Mookie spotted a deer back in the trees.
We got there early and prepped a couple of rockets. When the range opened we set up our FY2K with an F23 motor. We wound up making the first flight after the first rocket scheduled to launch burnt it’s igniter without lighting the motor. The FY2K is a smallish rocket, and leapt off the pad with a roar and trailing thick black smoke. The chute ejected right at the top and she landed softly within 100 yards of the pad.
Next up for us was the Super Ninja. The Super Ninja has made many flights for us, and today we were going to fly her on an E18, the biggest motor she’s ever used, and it simmed out to over 2000 feet altitude. I have no idea how high she actually went, and nobody else did either, because everyone lost sight of it while she was still screaming upward. While I was looking up, trying to see some glint in the sunlight, a friend told me that the rocket was probably already on the ground. Couldn’t prove it by me.
Mookie and I went searching in the direction she probably would’ve drifted, but after a good long walk we had no luck finding her. The worst part about it was losing a reloadable motor casing, which costs $40.00 to replace.
We spent some time visiting with friends and watching other rockets launch. After a while I prepped the Air Munuviana for a flight on a hybrid I-80. With the help of Doug Pratt we got her ready on the pad while I sent Mookie and Brian Pratt downwind several hundred yards to watch for where she landed.
The liftoff was perfect, and the I-80 really moved her along. I lost sight of the Air Mu in the sun, but others watching said the chute never came out and she came in ballistic. I heard the impact when she hit the ground, in the opposite direction where Mookie and Brian were stationed. As a friend and I started the walk to find it, someone said they had a line on it which was nice because it gave me a couple of reference points to use to tell me about where it came down.
We walked about a quarter mile to the first treeline, crossing an electric fence along the way, and there I continued on alone since I had to wade a stream to get to the meadow beyond. The meadow was pretty boggy in spots, and I covered it pretty good all the way back to another treeline. The second treeline was the start of a mature pine wood, planted at some point because many of the trees were in straight rows. It was also demarked with a barbed wire fence.
About this time, Mookie and Brian showed up. We found a spot to get through the barb wire, and made a circle through the wood beyond. It was a pretty good hike, but we had to be careful to pick our way around patches of poison ivy. No luck finding the rocket.
We’d been looking for more than an hour, so we headed back. The guy who saw the Air Munuviana come down couldn’t tell how far away it was, so just to be thorough I decided to check the near meadow after we waded the stream again. Brian and Mookie headed towards the truck while I walked the stream.
Out of the corner of my eye, I caught the purple of the anodized aluminum motor casing. Calling back to the kids to let them know I’d found our rocket, I took a closer look.
Usually in these lawn darts, the motor is the only thing that survives. Not this time, because I could see a dent in the casing. It was standing straight up in the mud on the bank of the stream. Pieces of the airframe were scattered around, lying in the water. I laughed when I saw a blinking light underwater, as either the altimeter or sonic beacon was still functioning and the LED was flashing.
When the kids got there, we climbed down into the creek and started locating the debris. The motor casing was dented, making it unusable. The altimeter was wet, and a closer look showed it to be trashed from the impact. The parachute was intact. We figured the nosecone had floated downstream and was lost.
I wanted to get a look at the other bank to see what might be over there. Climbing that side, I came across the nosecone. It had been flattened – the long way – by an impact in the tree above. Sure enough, Mookie spotted a branch about 30 feet up with a big bare spot where the Air Mu spacked at speed. We also found the motor mount, with the bottom 8†of the motor tube. How hard do you think it had to have hit that tree to snap an aluminum tube cleanly?
We also found a whole fin and most of another, as well as a few small shreds of delaminated plywood.
Now this flight cost almost $200 in destroyed equipment, but something about rocketry that is seldom talked about is that even crashes like this are kinda cool. It also felt good to find the pieces, much better than just losing it and not knowing what happened. This way, I can possibly determine what caused the failure. The ‘up’ part was perfect. I need to work on the ‘down’ part.
Once we got back to the truck, we all called it a day and packed up. Doug had invited us to join him and Brian for ribs at a killer BBQ place near there, and it sounded good after the long hike. Just as we were getting ready to pull out, a guy tapped on our window and said he’d found our rocket. I hopped out and sure enough, he had the Super Ninja (and my motor case – yay!). One fin was broken, but she was otherwise intact. He’d been looking for one of his rockets, and came across ours almost a mile and a quarter downwind.
The remains of the Air Munuviana are spread out on a table behind me, drying out a little. I’ll post some pictures tomorrow. The sonic beacon is still flashing, which amuses me, but all the drying out in the world won’t revive the piezo buzzer so it’s toast.
The ribs were awesome. I’m gonna be sore tomorrow from all that scrambling cross country. It was a great day.
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The day started with high clouds but the sun burned through now and then. A cold front is moving into the area and intermittent rain has started, but the day was mostly dry. The winds were out of the south and stayed between 5-10 mph.
Culpeper is in the heart of VirginiaÂ’s horse country, and the area consists of gently rolling hills dotted with farms. Our route there takes us through the Chancellorsville Battlefield from the Civil War. On the way, Mookie spotted a deer back in the trees.
We got there early and prepped a couple of rockets. When the range opened we set up our FY2K with an F23 motor. We wound up making the first flight after the first rocket scheduled to launch burnt itÂ’s igniter without lighting the motor. The FY2K is a smallish rocket, and leapt off the pad with a roar and trailing thick black smoke. The chute ejected right at the top and she landed softly within 100 yards of the pad.
Next up for us was the Super Ninja. The Super Ninja has made many flights for us, and today we were going to fly her on an E18, the biggest motor sheÂ’s ever used, and it simmed out to over 2000 feet altitude. I have no idea how high she actually went, and nobody else did either, because everyone lost sight of it while she was still screaming upward. While I was looking up, trying to see some glint in the sunlight, a friend told me that the rocket was probably already on the ground. CouldnÂ’t prove it by me.
Mookie and I went searching in the direction she probably wouldÂ’ve drifted, but after a good long walk we had no luck finding her. The worst part about it was losing a reloadable motor casing, which costs $40.00 to replace.
We spent some time visiting with friends and watching other rockets launch. After a while I prepped the Air Munuviana for a flight on a hybrid I-80. With the help of Doug Pratt we got her ready on the pad while I sent Mookie and Brian Pratt downwind several hundred yards to watch for where she landed.
The liftoff was perfect, and the I-80 really moved her along. I lost sight of the Air Mu in the sun, but others watching said the chute never came out and she came in ballistic. I heard the impact when she hit the ground, in the opposite direction where Mookie and Brian were stationed. As a friend and I started the walk to find it, someone said they had a line on it which was nice because it gave me a couple of reference points to use to tell me about where it came down.
We walked about a quarter mile to the first treeline, crossing an electric fence along the way, and there I continued on alone since I had to wade a stream to get to the meadow beyond. The meadow was pretty boggy in spots, and I covered it pretty good all the way back to another treeline. The second treeline was the start of a mature pine wood, planted at some point because many of the trees were in straight rows. It was also demarked with a barbed wire fence.
About this time, Mookie and Brian showed up. We found a spot to get through the barb wire, and made a circle through the wood beyond. It was a pretty good hike, but we had to be careful to pick our way around patches of poison ivy. No luck finding the rocket.
WeÂ’d been looking for more than an hour, so we headed back. The guy who saw the Air Munuviana come down couldnÂ’t tell how far away it was, so just to be thorough I decided to check the near meadow after we waded the stream again. Brian and Mookie headed towards the truck while I walked the stream.
Out of the corner of my eye, I caught the purple of the anodized aluminum motor casing. Calling back to the kids to let them know IÂ’d found our rocket, I took a closer look.
Usually in these lawn darts, the motor is the only thing that survives. Not this time, because I could see a dent in the casing. It was standing straight up in the mud on the bank of the stream. Pieces of the airframe were scattered around, lying in the water. I laughed when I saw a blinking light underwater, as either the altimeter or sonic beacon was still functioning and the LED was flashing.
When the kids got there, we climbed down into the creek and started locating the debris. The motor casing was dented, making it unusable. The altimeter was wet, and a closer look showed it to be trashed from the impact. The parachute was intact. We figured the nosecone had floated downstream and was lost.
I wanted to get a look at the other bank to see what might be over there. Climbing that side, I came across the nosecone. It had been flattened – the long way – by an impact in the tree above. Sure enough, Mookie spotted a branch about 30 feet up with a big bare spot where the Air Mu spacked at speed. We also found the motor mount, with the bottom 8” of the motor tube. How hard do you think it had to have hit that tree to snap an aluminum tube cleanly?
We also found a whole fin and most of another, as well as a few small shreds of delaminated plywood.
Now this flight cost almost $200 in destroyed equipment, but something about rocketry that is seldom talked about is that even crashes like this are kinda cool. It also felt good to find the pieces, much better than just losing it and not knowing what happened. This way, I can possibly determine what caused the failure. The ‘up’ part was perfect. I need to work on the ‘down’ part.
Once we got back to the truck, we all called it a day and packed up. Doug had invited us to join him and Brian for ribs at a killer BBQ place near there, and it sounded good after the long hike. Just as we were getting ready to pull out, a guy tapped on our window and said he’d found our rocket. I hopped out and sure enough, he had the Super Ninja (and my motor case – yay!). One fin was broken, but she was otherwise intact. He’d been looking for one of his rockets, and came across ours almost a mile and a quarter downwind.
The remains of the Air Munuviana are spread out on a table behind me, drying out a little. IÂ’ll post some pictures tomorrow. The sonic beacon is still flashing, which amuses me, but all the drying out in the world wonÂ’t revive the piezo buzzer so itÂ’s toast.
The ribs were awesome. IÂ’m gonna be sore tomorrow from all that scrambling cross country. It was a great day.
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April 30, 2004
The Student Launch Initiative is an education program designed to allow high school and college students to experience practical aerospace and engineering activities. Working in teams, students demonstrate proof-of-concept for their designs, develop Web sites dedicated to their work, learn how to budget — including how to present financial proposals to NASA engineers and community leaders — and gain problem-solving skills."It's important for NASA to fuel students' interest in careers in science and engineering," said Jim Pruitt, manager of the Education Programs Department at the Marshall Center . "This initiative gives students hands-on experience building and launching rockets — to inspire the next generation of space explorers, and help our nation prepare our young people for the challenges ahead."
At the launch, student teams will attempt to reach an altitude of one mile with their rockets, and college teams will attempt to send their rockets two-miles high. All rockets will carry a scientific payload. The teams will be evaluated on their rocket design, including propulsion, materials, payload and safety features. NASA volunteers also will look at the target altitude, formal reviews and Web site designs.
Here's a link to the Marshall Space Flight Center Education Programs page for the Student Launch Initiative. It contains several good links for related information.
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April 21, 2004
For new visitors, I thought I'd briefly mention what Rocket Jones is about. Like it says up top, it's a literal description of my state of mind. My kids and I do hobby rocketry, and I use this blog to occasionally talk about the science, technology and fun involved. We're also heavily involved in educational projects with local schools and youth groups. My Rocketry category contains Rocket Jones posts on the subject, including tons of web links and pictures of our family doing rocket stuff.
And you might not have known, but Munuviana has its own space program!
Here's a beginner Q&A about model rocketry.
Here are pictures of a couple of our other larger rockets.
Invitation
I posted this about a month ago, but I'll repeat myself.
BattlePark 2004, to be held May 1st and 2nd in Culpeper, Virginia, will be one of the largest rocket launches of the year in the United States. Rocketry enthusiests from all over the eastern US and Canada will be attending and making spectacular flights.
Located within two hours of Washington DC and Richmond, VA, the field is beautiful rolling farmland. You can find directions and a map here. Spectators are welcome (no charge), and kids launch for free. Everything from Estes-sized model rockets all the way up to extreme high-power will be launched. A 15,000' altitude waiver has already been approved by the FAA.
Mookie and I will be there both Saturday and Sunday, and we'd love to meet some of you! C'mon out and see something unique and exciting.
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April 19, 2004
Instead of a target altitude, the kids will have to design a rocket for a target duration. In other words, the rocket from lift-off to touching ground again will be timed, and that's the parameter they're trying to zero in on.
Stephen remarked:
It would seem to me that if was total time from take-off to landing a big chute would have big advantage.more...
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April 16, 2004
I just talked to their teacher, and we agreed that they learned a lot from this project. Since the finals will be local for them, they might come out and spend the day watching. That would be a great thing, because they were entirely successful, it just wasn't quite enough to advance. Besides, it'll do them good to see finalists have the same problems they had while making their qualifying flights. It's rocket science, and perfect preparation means you only minimize the effects of bad luck. You can't eliminate it completely.
In other great news, they've already announced that there will be another Challenge held in 2005. This was originally conceived of as a one-time event, but it's been successful enough to have a third go-round.
Next year's Challenge will be a little different. Instead of a target altitude, the kids will have to design a rocket for a target duration. In other words, the rocket from lift-off to touching ground again will be timed, and that's the parameter they're trying to zero in on. Of course, the rockets will have to carry at least one egg (and bring it back unbroken), and it looks like there will be bonus points awarded for two-stage designs and carrying two eggs aloft.
Mookie and I will be volunteers working the finals again this year. Fun fun fun!
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April 10, 2004
The weather was beautiful, and the site of the launch, Middletown Park, is really nice.
We were on a tight schedule because one of the team had to be at work early, so the plan was to get there, make a practice flight, turn it around and do another 'official' flight to try to improve on their qualifying score. To speed things along, the team had pre-loaded the engines into the rocket so that on the field all they'd have to do was install igniters and the altimeter and eggs.
When we arrived they quickly got prepped and safety-checked, and set the rocket up on the pad. Then it was a short wait for their turn to launch.
Countdown and all three first-stage motors lit. The rocket took off straight as an arrow and it was looking to be a picture perfect flight. First stage burn-out, and the second stage should ignite... should ignite... should ignite any time now...
The rocket coasted upwards, and as it was beginning to arc over the upper stage lit. She powered into the ground about 150 yards away. We collected our gear and went to recover it, to see what could be salvaged for the next flight.
No chance at a second flight. The nosecone was embedded into the ground, and shattered. The egg capsule was smashed too, as were the eggs inside. Much of the second stage was waterlogged (it landed on the edge of a pond) and the motor mount ripped free from the impact. The altimeter was beeping out 620 feet, just about half of the target altitude.
We sat down and started to recreate the flight to figure out what went wrong. When the motors were pulled from the booster stage, we found the problem. Instead of using booster motors (no delay, instant upper-stage ignition), they used upper-stage motors with a seven second delay. So instead of igniting the upper stage immediately, while the rocket was still moving fast and vertical, it slowed down and tipped over during those long seven seconds.
The guy that loaded the wrong motors felt really bad, but it was a simple mistake. I reinforced the lesson about using the checklist when prepping complex rockets, and tried to make the point that everyone makes mistakes now and then. The team has a good qualifying flight to turn in, so they still have a strong chance at making the finals.
Three different teachers also stopped by while we were inspecting the rocket and talked to the kids. I really appreciated that, because they were all supportive and their kind words made the team feel better.
They should know by the end of the week if they made the finals. I'll keep you posted.
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April 08, 2004
A key point is that the students are entirely responsible for the design, construction, prep, flight and recovery of the rocket. Teachers and mentors are for advice only. No hands-on by adults is allowed.
Last year, the team of high school students I mentored barely missed the finals, coming in 111th out of over 900 teams entered from across the US.
This year's contest is even bigger, and the team is even more determined to make the finals. There’s only one student left from last year, and they’ve been working hard. They built two rockets, one a clone of last year’s design, and the second incorporates some ‘advanced’ technology like fiberglass fins and better aerodynamics. They’ve been running lots of computer simulations on their designs, and have flown both rockets at least a half dozen times on practice flights (pictures here). Their egg protection system is flawless so far, not a single crack yet.
Last Sunday they tried to make their qualifying flight. The wind was terrible, I was surprised that they were allowed to launch. Their first official attempt worked perfectly and went over 1000Â’, but the target altitude is 1250Â’. They went with a smaller upper-stage motor, and misjudged on the low side. They next decided to try the other rocket on a practice flight, then choose between the two for their final qualification flight.
1175Â’. Beautiful, but unofficial. They hustled to turn the rocket around to make another flight before the range closed for the day, and somewhere in the rush a mistake was made. On their final flight, only one motor ignited in the booster stage (itÂ’s a three-motor cluster) and the badly underpowered rocket tipped horizontal off the rod and then the upper-stage motor ignited. The rocket then flew into the ground under power and pretty much disassembled itself. The eggs survived!
So this week theyÂ’re rebuilding. The teacher is headed out of town because of a family emergency, so on Saturday morning IÂ’ll meet the students at their school and haul the crew up to Frederick, Maryland so they can make another, hopefully better, attempt.
Keep your fingers crossed for them.
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March 25, 2004
Located within two hours of Washington DC and Richmond, VA, the field is beautiful rolling farmland. You can find directions and a map here. Spectators are welcome (no charge), and kids launch for free. Everything from Estes-sized model rockets all the way up to extreme high-power will be launched. A 15,000' altitude waiver has already been approved by the FAA.
Mookie and I will be there both Saturday and Sunday, and we'd love to meet some of you! C'mon out and see something unique and exciting.
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