How I became a BAR
What, you may be asking yourself,
does he think he's talking about? BAR?
Well,I recently ran into that term
on a website being used to describe someone who was into the
hobby of model rocketry once way back in their youth, and are
now older, richer and more fervent in their pursuit of the hobby,
thus Born Again Rocketeers. BAR.
With slight apologies to Estes, Quest and other
manufacturers of model rockets, let me briefly describe what
has happened to model rocketry in an effort ot make it more
immediate and therefore acceptable to today's impatient little
monsters. Once upon a time rocket kits came in the mail to you
and you spent anywhere from an hour to a week agonizing over
cuting out the fins, sanding and painting the fins and the balsawood
nose cone, getting the fins attached correctly so that all 3
or 4 weren't on the same side of the body tube. Final painting
and decal application took another day or more if your paint
job called for multiple overlapping colors.
Good fun, good times, and a good experience in
Xacto knife use, patience and fine building skills.My friend
and neighbor Alan and I had fun with this. We couldn't do too
many launches since engines cost more that our combined weekly
allowance (each) plus shipping, but the ones we build and launch
were treasures.Including the Estes Scout that went up, up, up,
caught a side wind and came down, down, down about 150 feet
away, hitting right next to my father who was sitting on our
back patio having a cool beer on a hot day. Surprise, dad!
We
now have an unfortunate era of "got to have it now... got
to make it fly right now!" Today, a high percentage of
the kits feature a hollow plastic nose cone, a body tube or
perhaps two that get quickly glued together with a little slip
in ring between them, and a fully formed set of plastic fins
perfectly arranged around a plastic tube that fits over one
end of the body tube (you still have to learn that it is the
bottom or non nose cone end where this goes) and gets held in
place by a drop or two of super glue. Even the parachute comes
preassembled and needs to just be tied and glued into place.
That's it. That is all it takes. 5 minutes, if
that! Except for some painting, maybe, but some of these kits
come prepainted or wrapped in colorful "skins." About
the only skill involved is in not getting your fingers glued
together with the super glue. And Estes even once made a large
inflatable rtocket called "The Dude" buy some but
"The Dud" by others. Blow it up, shove an engine up
one end and watch it go. Fun? No... not really.
BORING.
Now, BARing is another thing. In this version
you go out and buy a lot of individual components (sheets of
balsa wood, packages of body tubes, assorted parachutes, pieces
to make engine mounts, lots of engines, etc.) and start coming
up with designs on your own. At least, that is how I approach
the sport.
My childhood rocketeering years (ages 6 through
11) were filled with Estes "Scout" and "Big Bertha"
and even a "CamRoc" or two powered by such classic
engines as the A8-3 and the B6-4 or even the mighty C6-5 for
those flights high enough to catch a cross breeze almost guaranteed
to blow your rocket 1/2 mile away.
In my late 20's I had a one-year renaissance of
rocket building where I stuck to a few of the more complex kits
and then added about a half-dozen designs of my own to my set
of rockets. I discovered the fun of using an underpowered engine
to launch a rocket up only about 20 feet only to see it turn
around and drive itelf back into the ground (THIS IS NOT RECOMMENDED
ROCKETEERING.) But I also got a taste of the newer, larger and
more powerful "D" series Estes engine. Those of my
rockets witha wide enough body tube to hold one could now fly
not just 500-1000 feet but up into the 1500-1600 foot area.
Of course, this also began my learning phase about
center of gravity vs center of pressure where if you have one
in front of the other, you fly. The other way around and you
wobble or just go all crazy.
Now in my late 40's I have found out that there
are model rockets and their cousins the sports and other larger,
more powerful rockets to be made and flown. I heartily recommend
that parents get their kids interested in real model rocketry.
and the sooner the better. Oh sure, start with one of the assembles
in 1/2 hour kits just to get something that flies as quickly
as possible, but quickly graduate to the skill level kits that
require creating fins from scratch, positioning them correcty,
building an engine mount tube, and that sort of thing.
But when the kids are asleep, and especially if
you are a BAR, just think of the wonders you can do.
Quest makes a series of what they call Micro Maxx
rockets and engines. The rockets are preassembled and stand
about 5 inches tall, are about as thick as a pencil and feature
engines that are 3/16th of an inch wide by 3/4 inch long and
fly about 50-120 feet. Great if you have a 20 foot by 20 foot
back or front yard and no wind. They go "pop" and
jup up then they come back down. (I've build a 'real' rocket
that uses three of these engines in a cluster. It weighs about
13 grams with the engines and tumbles back to earth after the
engines pop the nose cone off. It goes up to about 200 feet
when all three engines ignits, to about 90 feet when twp of
them do, and doesn't leave the ground when only one fires off.)
A typical quick kit gives you a rocket that stands
between 8-inches and 12-inches.An advanced kit can be a couple
feet tall or even more.
And then we move into the realm of "you mean,
that will actually fly?" rockets. My current
fleet has a couple rockets that are over 5 feet tall with a
6 foot 5 inch one on the way.And now I can launch them with
larger and more powerful Series E, F and even G engines as long
as I do this at sponsored events held in appropriate locations.
Like not near airports and not within about a quarter mile of
any house or building.
These fly slower and more majestically. The little
poppers sometimes get off so fast that you think they just disintegrated.
The larger ones lift off relatively slow and then quickly gain
speed and altitude. Some, properly built and matched with the
right engines can go several thousand feet in the air. As in
half a mile or so up. As in, 'oh-oh...where id it go...ah, there's
the parachute..." sort of flights.
But the fun doesn't stop at the G engines. For
those who have a lot of experience and who qualify for a special
federal license, there are H and larger engines. And engines
that are not just solid rockets but have both a solid fuel and
a liquid oxidizer like nitrous oxide. Some of these can launch
12-foot rockets a several thousand feet into the air and carry
payloads of from a few ounces to a pound or so. No, that doesn't
include launching the neighbor's cat (Fluffy would turn into
Icky) but there are video cameras that can go up, instrument
packages to measure accelerationa nd altitude, and some people
have contests launching ostritch eggs (remember those Junkyard
Wars episodes?) and other items.
My
largest rocket and most powerful engine weigh in at a combined
413 grams or about 14.5 ounces (very rounded), The engine is
capable of lifting over 620 grams (21 ounces) so the only thing
I have to worry about is keeping that darn ceter or pressure
behind the center of gravity. And, the way I calculate it, I
have to add about 1.6 ounces (45 grams) of weight to the nose
to keep this correct. But, of course, this means that the weight
and everything calculation might slip a little.
That's why I am going to do a low powered launch
with an engine that weights about 4 grams less and can lift
about the total combined weight of rocket and that engine. By
the way... that's the rocket to the right. It stands 5 feet
3 inches in height. The little thing next to it is about 14
inches tal and indicative of beginner's level rocket kits. With
the right engines and balancing I should be able to get them
both up to over 1,500 feet.
The engine I will use in my test of this tall
boy is an E series engine and the final go-for-altitude one
will be an F series engine.
I figure that if I have correctly calculated things
and the rocket performs as I expect, then i will move on to
something that will eventually require that I obtain the necessary
government licenses in order to buy the engines necessary to
launch it.
I
also have built a 1/6th scale of the AIM-54 Phoenix missile
(running about 26 inches long by 2.5 inches wide (body) and
6 inches of fin span. The real ones cost about half a million...
mine cost about $8.50 in miscellaneous parts.
One of my other strange designs is what looks
like a stubby kid's "tee" with a baseball perched
on top. I took a cardboard "can" from a pack of fancy
cookies, knocked the bottom out, put large fins on it and took
a styrogoam ball wrapped in paper and painted it to look sort
of like a baseball. The whole thing stands just 11.25 inches
tall and is about 7.75 inches at the widest fin point. In only
weighs about 2 ounces so I can use practically any engine in
it. Of course anything larger than about an A3-4T engine makes
it cartwheen into the air. But that smaller engine pops it up
about 80 feet in the air and it just tumbles back to earth.
Eye-catching and fun.
So how do I feel about his being government regulated?
Easy... I love it!
After 9/11 the hobby of model and sports rocketry
almost ground out of existence. People who so narrowly think
things through that they believed anyone could go down to Toys-R-Us,
buy a rocket kit and bring down every 747 that flew overhead
just about killed it.
Fortunately, and with some additional restrictions
that don't really impact legitimate hobbyists, it is still here.
And, that whole 747 thing? Imagine the total lack of impact
a 3 ounce paper tube and balsa wood 15-inch dart that can only
fly to about 1,200 feet would have on a jumbo jet where the
wing alone weighs 95,000 pounds and is flying at thousands of
feet in the air... and moving very fast... you have no way of
steering it once it leaves the launching rod and you have almost
no way of rapidly computing where to aim a model rocket to even
get close... and a million other things that go into making
it impossible to do.
Model and sports rocketry are safe when practices
safely, and are lots of fun. For me it isn't even in the launching;
it is in the design and building of the rockets. I am working
on the design and parts list of a 12 foot long by 9 inch wide
rocket that I believe could fly with a large J or higher rated
engine, but I would probably never fly it... just hang it from
the ceiling in my garrage to make the neighbors nervous when
I open the door.