Some people knit in their spare time. Some garden. My husband builds fireworks.
I suppose that's not *exactly* true - mostly he researches formulae and methods. He only gets to actually build them once a year when he takes his chemicals and materials to West Virginia for July Fourth weekend. I think, though, that things are about to change.
We just returned from our first "shoot" with Crackerjacks, a regional fireworks club. Martin finally joined, after years of talking about it, and we trekked off to middle Virginia with our camping gear to see what it is really all about. I'll tell you what it's about - it's about lots and lots and lots of fireworks, and setting them off as often as possible.
First off I will say that they are very invested in safety and safe practice. The grounds of the shoot, which they have been using for the last thirty years, have defined areas for the different activities, restrictions on where you can do what, and safety requirements. Enforcement at the areas varies, but those in charge are continuing to work to nail down policies and get people to follow them. For the most part, they do a good job.
Upon arrival we headed to the main pavilion to get signed in, and to retrieve our badges. We were here as guests of the group's President, since Martin's membership application had yet to be processed. Still, we were allowed to wear "New Member" badges. We were required to wear these badges constantly. When meeting new people, it was handy to read their badges -- for example "Bob, PGI Certified, Board Member". Lots of the attendees were certified by Pyrotechnics Guild International.
The large area closest to the Pavilion was the first to grab our attention, less because of its proximity than because of the noise. This was the "Class C" open shooting range. People used this range alllllll day. If you think you love fireworks, this area will put you to the test. Class C fireworks are the kind you can buy at fireworks stands. They are consumer class fireworks. Evidently, this classification system is obsolete (they are now called 1.4 G fireworks), but Class C is how most people still refer to them.
Many 1.4 G vendors were here at the shoot, with plenty of wares on hand. Evidently a typical MO would be a Class C afficionado buying individual fireworks from the vendors, going to the range to fire them off, and then returning to the vendors to purchases cases of their favorites. I didn't ask what they intended to do with these cases - let's assume they were all going to use all of them for the Fourth of July. All I know is that the same people kept returning to the range and firing off more of these fireworks. During the daytime. When you can't really see them. Whatever.
On the other side of that same field was the manufacturing tent. This is where you would go to assemble your own fireworks. This was a restricted area - no children, safety glasses required, etc. This is where the risky business of combining volatile chemicals took place, and so, of course, this is where we spent most of our time.
Not too far from the manufacturing tent was the "Experimental" shooting range. All homemade fireworks were fired here (with a few exceptions which I'll mention later). This was a low area in the field, with mortars sunk into the ground behind a vertical sheet of plywood. Shooters would place their contraptions into the proper mortar, light it, and step around the plywood and back off as the fuse burned down. There was a wide range of sizes and types of fireworks going off at the Experimental range.
After our initial tour of the area, we picked out a tent site and got the tent set up. Martin went off to check things out while I puttered and read my book. It wasn't too long before he returned to fetch his camera, saying "this guy has the most beautiful rockets I've ever seen". Later, he returned to fetch me so I could go meet said rocket guy. We went and met a large group of people that had driven down from New Hampshire and Massachusetts. The "Rocket Man", Tom, and his friends were extraordinarily friendly, and seemed to accept Martin with pleasure.
It didn't take us long to figure out that the Class C afficionados and the fireworks builders were nearly two separate clubs. We were quickly folded into the madcap group that made up those who made their own fireworks. I guess it didn't take long for them to figure out that Martin was one of them, and then I was accepted by association.
As night fell the launching of the Class Cs ramped up quickly. But the feature of the night was to be the "beautiful rockets" built by Tom and two other rocket men. Even as the Class C range continued to pump out color, smoke, and noise, the rockets began going off downfield. They truly were beautiful -- one of the difficult parts of making rockets is getting the motors to work well and consistently. These drive the rocket into the air, and then when they reach apex, the bursts will (hopefully) ignite and release whatever is packed away inside. All of the rockets had fabulous motors -- consistent height, great burn with comet-like tails, and all seemed to explode at apex. They released a variety of charges. Tom's often had rings of color, and several had timed bangs that went off in sequence, creating circular rings. He also tended to add a "bottom burst" to his rockets, which was a final punctuation of bang and stars at the end. Impressive, indeed!
Then we moved to the Experimental range. I wasn't sure what quality of stuff I would see here, even though I had just seen some very fine homemade rockets. At the experimental range they set off about 10 shells, which are launched from the buried mortars (as opposed to being launched by rockets). These ranged from 4 to 8 inch diameter shells, which I believe would be easily classifed as "Class B", or display fireworks (consumer-class fireworks are limited to 50mg of explosive material). Shall I just say that these shells were truly impressive. Huge. The sound of these shells coming out of the mortars alone is impressive -- a deep "Thoomph", several seconds of silence while you watch the shell ascend, and then gigantic booms with bursts of beautiful color. Wow. Martin was as giddy as a schoolgirl.
The next day would be a full day of fireworks. We started at 9 with a pancake breakfast, and Martin headed off to watch and learn while I went back to the tent to read and relax. Close to noon I went and found him at the manufacturing tent. He talked me into joining the "Build Your Own Shell" seminar, and so we both assembled some 4-inch shells, using pre-made stars. The manufacturing tent is an interesting place. Not too far a way a man named Bill was assembling a 10-inch shell. We stared at it with wide eyes. This was a monster. We talked in hushed tones about the amount of lift charge it would take to get that thing going. Our four inch shells were going to need 1.5 grams of black powder......
Anyway, it takes a few hours to build a shell, because after you get the "color" materials and the burst charge inside, you close the shell and wrap it. One of the Crackerjacks had built a nifty taping machine -- you stick your shell on the device, tell the computer the final diameter you need, and it rolls and rotates the shell while taping it to the exact specification. Much faster than hand wrapping! Then the shells need to go into the drying box for at least an hour to remove any moisture.
We talked to a lot of people during these hours, and met even more. One notable character was Pete. I had noticed Pete right away because he was missing most of his left hand. When you know anything about fireworks, and you see missing fingers, you pretty much assume an explosives accident. I wanted to know what happened to him, but felt it inappropriate to ask. Anyway, we talked to Pete several times, and it turns out he and Martin have a LOT in common -- both are very smart, both have worked in electronics and computers, both know alot about chemistry, and both are (obviously) interested in fireworks. I found this close similarity disturbing as I kept catching sight of Pete's mangled hand.
Later in the day we had caught up with Pete again, and at one point while Martin was on a short errand, I began to raise (subtly) some of my concerns about Martin's safety. Pete jumped into the topic with little encouragement, and began to detail exactly how he and his manufacturing partner minimized their risks. I said "Well, it certainly sounds as if you are extremely careful". Pete paused noticeably, and said "Well, I am very careful, because once, I was not." Martin had walked up at that moment, and Pete told us what had happened to him. Turns out it wasn't fireworks that blew off his hand - it was a very dangerous high explosive. He was cagey about why he was working with it, but acknowledged that he had become complacent with it, and not followed practices that he knew even then that he should be following. Anyway, the story is somewhat predictable, but what really struck me was (a) that Pete still worked with explosives, but was extremely cautious and regimented in his handling, and (b) he quite obviously chose to tell us his story because he really liked Martin, and wanted to impress upon him the need to be safe. I was very grateful for that. Thank you, Pete!
I'll make the last part of our Crackerjacks shoot a separate entry, just because this one's already too long, and there's sooo much more to tell.