Shallow Thoughts : tags : planes
Akkana's Musings on Open Source Computing and Technology, Science, and Nature.
Tue, 11 Jan 2022
On most Sundays, you can find me at Overlook Park where the
Los Alamos Aeromodelers fly radio controlled model airplanes at the
big soccer field. The
Los Alamos Aeromodelers
used to be an official flying club, but now it's just a group of
friends who fly together.
I first got into R/C flying in the 1980s. Back then, model planes were
made of balsa wood. They took forever to build. The planes were heavy
(five or six pounds)
and flew fast, and so when they crashed — which they did a
LOT — you had a lot of fastidious rebuilding to do.
They were powered with internal combustion 2-stroke motors.
They were SO LOUD. You couldn't fly them in local parks;
you had to drive to a remote flying field where the noise wouldn't
disturb anyone.
Plus the motors were finicky and messy: they spewed oil
everywhere, so you had to clean the plane off with paper towels and
a degreaser after every flight. Ick.
Read more ...
Tags: planes, radio control
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15:56 Jan 11, 2022
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Tue, 27 Aug 2019
White Rock has a "glider port", which is just an informal spot along
the edge of the canyon where sometimes people fly R/C sailplanes. On
days when the winds are right, gliders can get some pretty good
lift.
Last Sunday wasn't one of those days. The wind was coming from
every direction but east, so the gliders were having to use
their motors periodically to climb back up to altitude.
I was mostly trying to stay above the canyon rim, but I noticed all
the other pilots were flying down below, so I decided maybe it wasn't
that dangerous to let my plane get a little below the edge for a while
before starting the motor. Wrong! Below the edge of the canyon,
there's a risk of catching some evil rotors off the cliffs. One of
those rotors caught my glider's wing and tossed it into a spiral. I
was able to recover and get the plane flying straight again --
straight toward the cliff. It smacked hard -- I saw parts flying
everywhere.
I didn't expect that the plane itself was salvageable -- it's only
styrofoam, after all -- though it looked surprisingly intact. In
any case, Dave and I hoped to recover the components: battery, motor,
receivers, servos. Hiking to the plane proved difficult: you can get
fairly near there on the Blue Dot trail, but then you need to climb
three levels of cliff to reach the place where the plane sat. Coming
down from above definitely would have required rapelling gear.
But Dave had an idea: let's go fishing!
It took some experimenting to figure out what sort of hook, line and
pole you need to fish for a thirty-ounce plane that's fifty feet down
a sheer cliff out of sight from the cliff above it. Dave did the
fishing and I acted as the caller, sitting some hundred feet away
where I could spot the plane through binoculars and shout out which
direction he needed to move the line. But we got it in the end!
I shot some quick snapshots while I wasn't busy spotting, which
you can see here:
Plane
Fishing (photos).
Amazingly, the plane was almost undamaged. The plastic spinner was
destroyed, but the motor seems fine. The nose of the plane is very
slightly askew but not broken. The battery, after being plugged in to
the receiver for 48 hours, was down to zero volts, but when we charged
it carefully, it took a charge. The canopy went flying off at the
moment of impact and is down there in the rocks somewhere, so I have a
new canopy, spinner and collet on backorder, but in the meantime, the
plane is probably flyable. I'll find out this weekend -- but if we
fly at the gliderport, I'm not letting it get lower than cliff level, ever!
Tags: planes
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16:57 Aug 27, 2019
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Sun, 22 Nov 2009
I gather indoor R/C airplane flying is fairly common in some areas of
the country. But here in the Bay Area, there's been a lot of demand
and not many opportunities to do it, so there was great excitement
at a recent opportunity to rent Sunnyvale's community center gym
for some
Sunnyvale
Indoor Flying.
Indoor flying has come a long way.
I remember a couple of years ago when most of the indoor planes
were either "3-D" planes like my
skunk plane
that can stay in a small area by hovering, or weirdo concoctions
like the
Mini IFO.
There were a few pioneers who used microminiature actuators and
other fancy hardware to build tiny lightweight custom planes, but
that was an expensive and difficult proposition.
But lithium-polymer battery technology and advances in tiny
servos and brushless motors have created a revolution in super
lightweight micro flyers, led by the
Parkzone
Vapor (Dave's is pictured at right). At a flying weight of half
an ounce, the Vapor makes it easy for anybody to fly in a small gym
or even a large room.
For folks who want something a little faster and more aerobatic, the Mustang
is a bit heavier at 1.2 oz, but still flies well in a gym.
And of course, there are the hundreds of micro-helicopters
that are popping up everywhere over the last year or two.
Pretty cool stuff! Anyway, we had a great session on Friday flying
these planes, and amazingly avoided any serious carnage (unusual for
indoor flying where there are so many walls and basketball hoops to
smack into). I'm a little out of practice and found the flying a bit
intense, so I took a few breaks between flying sessions to shoot photos.
For the new year this is going to turn into an AMA-chartered club,
BAM (Bay Area Microflyers).
Watch the BayRC forums for more details.
Tags: planes, radio control, indoor flying
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15:13 Nov 22, 2009
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Fri, 19 Dec 2008
A couple of weekends ago, a handful of combat R/C flyers from Dublin
(Calif, not Ireland) came down to Sunnyvale Baylands for a Saturday
melee with our local crowd. We called it the "Boomer Fest" since
the group includes
"Boomer
Butch" and there are usually several Boomers among the group's
combat planes.
No long write-up, but I did upload some
still
images and
video
from the event. Adding streamers to the planes sounded silly (and
didn't last long in the high winds), but they sure made the
combat prettier!
Kasra tried to shoot some onboard video, but unfortunately the camera
shut itself off a few seconds into the flight. Maybe next time.
Tags: planes, combat, dogfight, radio control, baitball
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11:52 Dec 19, 2008
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Tue, 30 Sep 2008
I'm flying R/C electric planes again. I'd overdone it a few years
ago and burned out; it stopped being fun and I had to take a long
break from flying.
But lately I'd been hearing intriguing stories from Dave about the
group he flies with at Baylands. They weren't doing the endless
hovering-and-rolling-circles that's all the rage in electric R/C
circles. (Not to disparage 3-D flying; anyone who can coordinate a
rolling circle gets my respect as a pilot. I just lost interest
in spending much time at that sort of flying myself.
No, what they've been doing lately is combat flying ... dogfighting.
The kind of flying I always thought looked most fun, only
Dave and I could never get anyone else interested.
You mean, there's a whole group of people dogfighting
and I'm missing it?
When I came out to visit, a couple of my old dusty planes in tow,
Dave let me use one of his old Boomers
(a bit easier for a rusty pilot to fly than the full-on
Wild Wing)
for the combat. We only had 4-5 planes in the air, but I was hooked
right away. Dogfighting is way more fun with five planes than it is
with only two. It's still surprisingly difficult to hit each other,
even when that's what everyone's trying to do. But even when you
don't make contact, it's exciting and beautiful.
When you get a lot of planes in the air, twisting and turning and
looping and trying to stay in a little compact region because that
makes it more likely they'll hit, Dave put his finger on what it's
most like. You know those David Attenborough nature shows where
a huge school of sardines or anchovies has gathered, and dolphins
herd them into a tight compact ball of shining shimmering silvery
streaks, and then the seabirds come and dive from the air while
the dolphins are darting in and out from below? Attenborough calls
it a bait ball, and that's what Dave calls our combats.
We're gradually pulling in fresh mea--er--new recruits
to add to the fun.
A week ago last Saturday we all trooped up to Dublin to meet with
some east bay combat flyers. We had as many as ten planes all
fighting at once. Pete has a
video
online of the Dublin Melee ... video from a digital camera really
doesn't get the feeling across, but it's a start, and gives some
idea of the challenge of keeping track of which plane is yours.
Try imagining David Attenborough narrating about the bait ball while
you watch the video. Helps a little, doesn't it? Or if you're going
for the feel of combat, ditch the narration and play something like
the "Asteroid Field" theme from the first Star Wars.
Tags: planes, combat, dogfight, radio control, baitball
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22:20 Sep 30, 2008
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Sat, 22 Mar 2008
Dave was browsing old airplane pages and stumbled across a neat find.
The Convair B-36
Peacemaker
has a wingspan of 230 feet (for comparison, a Boeing 767's wingspan
is 156 feet), and it's powered by four pusher-prop radial engines
plus four turbojets, ten engines total. Wow!
But that's not even the cool part. The cool part is the list of
B-36es
still in existence. There are apparently only five of them left:
one at Castle Air Force Base (hey, that's not that far from here --
a two or three hour drive, and we used to autocross there now and then);
one at the Air Force Museum at Wright-Patterson AFB in Dayton, Ohio;
one at the Pima Air Museum in Tuscon, Arizona;
one at the Strategic Air & Space Museum in Nebraska;
and one in pieces in a field in Newbury, Ohio owned by a Mr. Walter
Soplata, who bought the plane when the Air Force was about to scrap it.
Wouldn't that be a cool accessory to liven up your back yard?
Tags: planes
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14:50 Mar 22, 2008
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Tue, 15 Mar 2005
Dave and I went flying (radio controlled model airplanes) at Baylands
last Saturday.
Dave got to the tables first, with the toolbox and one plane.
I followed, carrying two of my planes. As I walked up to the table,
some guy I hadn't seen there before chuckled, indicated Dave and said
"Heh, I see he's got someone to carry his stuff for him."
I gave him a strange look and a "Huh?" and then "No, he can carry
his own stuff."
It eventually dawned on the guy that those planes I was carrying
were my own, and I was going to fly them (perhaps the transmitter hanging
from its strap around my neck was a clue?), and he apologized.
It's amazing how often this happens; about every other time
I fly there, there's some guy reacting like "Unbelievable!
She has breasts, yet she flies airplanes! How can this be?"
It's not that they're unfriendly -- usually they're much
more complimentary than this particular fellow.
But it can get old being the phenomenal talking
dog week after week. I'm reminded of the recommendation in
Val's "How To Encourage Women in Linux" document: "Don't
stare and point when women arrive".
Fortunately, the Bayland regulars aren't like that, so it's not
quite that "stranger walks into a bar" scene mentioned in Val's howto.
But it's frequent enough that I bet it discourages women newbies.
I guess I shouldn't be surprised, based on the state of model airplane
magazines, which are still stuck at that pleistocene "Each month's
cover shows a different scantily clad bimbo with big tits and lots
of lipstick, posing with an airplane" stage from which most other
male-dominated hobbies graduated ten or fifteen years ago, or longer.
I was thinking about that today after class when, as I was getting
ready to ride home, a woman walking to her car hailed me with some bike
questions, and we had a nice talk about motorcycling.
She said her boyfriend thought she might be too short to ride
(she was about my height, possibly a little shorter)
but she'd seen a Rebel at a Honda dealer and was pretty
sure she could ride that. I assured her a Rebel should be no
problem, nor should a small sportbike like a Ninja 250. I offered
to let her try straddling my CB-1 (about the same height as a Ninja
250), but she declined -- on her way somewhere, and perhaps
nervous about sitting on someone else's bike.
Anyway, she had already decided to take the MSF course and get all
the safety gear before buying a bike -- she'd obviously thought it
through, and had come to all the right conclusions on her own.
You go, girl!
(I probably should have thought to tell her about the
Short Bike
List FAQ.)
Tags: chix, planes
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23:40 Mar 15, 2005
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Sat, 04 Dec 2004
I've always read that the reason that animals congregate in flocks,
schools, and swarms is that it's more difficult for a predator to
attack an animal in a swarm. The predator goes for one animal,
gets confused and veers off after another animal, veers after a
third, and ends up catching none at all.
Today, I experienced this effect more directly, from the
vantage point of both predator and prey.
We were flying model airplanes with the folks at Baylands.
We brought the Pocket
Combat Wings out of retirement, because there's been chatter
on BayRC about people dogfighting
Mini Speedwings, and we wanted to try dogfighting with more than
just the two of us in the air.
We hit the jackpot today! The combat session had seven planes in
the air at once, though it seemed like twice that as they twisted
and twined and screamed and whined and tried to hit each other.
Beautiful!
There's been some talk about rules and engine classes and that
sort of thing. Speaking as a pilot of the smallest and least
powerful plane there (I think I was the only one with a stock
IPS motor), it doesn't matter a bit whether some planes are faster
than others, or slightly bigger. Nobody can make contact anyway.
In some twenty minutes of intense dogfighting (and sore hands and
raw thumbs!) there were maybe four hits total
(and no kills -- in every case both wings continued flying).
People tried different strategies: pick out one target
and follow it (invariably to lose it quickly in the melee), fly
straight and let everyone else attack you (except mini wings don't
fly straight all that well, especially in high winds), fly straight
back and forth through the center of the bait-ball, fly into the
bait-ball and start doing tight loops, fly above the bait-ball and
spin down through it ...
Didn't matter. It turned out to be impossible to aim for a
particular plane as they all swarmed and twisted, and impossible
to pick one and follow it. Life in a swarm is chaos, and all you
can do is join in the chaotic dance.
Tags: nature, planes
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22:21 Dec 04, 2004
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