Here’s a post from the AMSAT-UK high altitude balloon blog. It’s a great story about a balloon cruising at about 12km above the Earth completing its sixth circumnavigation of the planet. That post is from October 4th, and two weeks later the balloon is still going strong. Right now it’s over the Baltic heading into Russia with no sign of stopping or popping any time soon.
The balloon was launched July 12, 2014 from Silverstone, UK. In the 100 days since then, this balloon has covered 144168 kilometers and has crossed its launching longitude six times. Even if this balloon weren’t trapped at high latitudes (including coming within 9 km of the pole), this balloon has still travelled more than three times the equatorial circumference of the Earth.
The balloon was built by [Leo Bodnar] a.k.a. [M0XER] with a self-made plastic foil envelope. The solar-powered payload weighs only 11 grams. It’s an exceptional accomplishment and one that has smashed all the amateur high altitude balloon distance records we can find.
WOOO!!! B-64!!!
Watching the story of the B’s flights unfold since B-1 has been a great demonstration of the engineering process. It’s been a blast watching Leo improve the designs, analyze data, invent, research, try and try again, each time flying further and further. The B flights have broken past what the amateur balloon community considered nearly impossible for the given constraints and budget.. and now the B’s have finally broken past the cursed 190 hour mark only to circumnavigate around the world six times… that’s nothing short of amazing and inspiring.
Float on!
Cool.
SO impressed.
I am duly impressed as a ham and being interested in the WX. Google is too.
Let’s litter the beaches of the world and all the land too with dead internet balloons.
Will they be fun to hack?
Which part is the sarcasm?
Ahh the fake eviromentalist fad from retard liberal morons who know nothing just trying to feel special about themselves. No wonder they keep losing lately. Notice how its always a swarm with the same time stamp on the comments and they’re all worded the same. Pathetic shills, always some form of virtue signalling. Liberalism is a dying mental disease.
Finally, I knew that roll of mylar would come in handy!
Isnt that airliner altitude?
Now that gave me the shivers. Imagine riding on one, and you see from your window seat the jet engine sucking a weather balloon.
It is.
A balloon like this one won’t cause critical damage to a plane though because it is very light.
Also the chance of collision is so small that there are no records in history of plane balloon collisions.
I even think a jet engine just eats the balloon without too much trouble and birds are more dangerous.
That’s completely wrong. The metal used in the transmitter will cause damage to the blades inside the compressor or the engine. Birds do not damage blades. They are composed of soft organics, even the bone is hollow. The only damage they do is to light aircraft windscreens at low altitude. They shoot frozen turkeys at the engine to demonstrate worst case scenario bird strikes (frozen birds simulate a big dense bird). Anything else isnt guaranteed, and its a guarantee it will devastate the engine.
Well I should correct, anything non organic *is* a guarantee to cause internal engine failure.
Anything? Like a nitrogen molecule? Or a tiny tiny dust particle from a far-away volcano? There has to be a limit of what is dangerous and what is not, organic or not. And a single engine failure on airliners is not very serious anyway.
Second hand story…
A man was nearly sucked into a jet engine, a wrench slipped out of his pocket into the engine, the pilot noticed a momentary drop in engine RPM.
Eventually the engine was shut off and the man survived.
Forget the wrench a man was sucked into a jet engine and survived… video is on youtube of course
No, they don’t work like that.
Modern turbofan engines have bypass ratios of 9:1 or higher. That means that there is a 90% chance of the balloon being sucked through the fan only and not the engine core. Modern jet fans are designed to tolerate a certain amount of FOD without damage. It’s unlikely the pilot or the maintenance people would even notice that this had happened.
Even if does get sucked into the core, it will have first been pre-chopped by the fan. The compressor blades and vanes are likewise designed to tolerate small amounts of FOD, and will chop it yet finer. From there, it will go into the burners, which are going to melt everything it’s made of. Most of the balloon will burn at this point, including a good chunk of the aluminum. What emerges from the burners will be finely atomized… and not capable of causing much if any damage due to there not being very much there in the first place.
FAA regulations don’t prohibit these balloons. Unmanned balloons can have total payloads of up to 12 pounds (limit of 6 pounds per container) and be launched with no advance notification. There is no specification of what components is allowed or disallowed.
Where does one get ofifiical regulations re construction materials, weights, etc. so as to be safe even in a collision with an aircraft, inculding injestion into jet engines?
Much more likely to run into a flock of birds than into a weather balloon.
As jet engines are tested against frozen chickens, they should also survive some plastic foil.
Actually, while I partially agree with all responses on engines sucking in and eating what would be considered light debris, it is actually devestating to the the compressor blades. Frozen turkies will not be as rigid as metals that will be found in that balloons transmitter. I used to work on the J52-P408B, which is a military engine by Pratt and Whitney. We have found that even tiny screws will cause FOD (foreign object debris) damage to the inside of the engine. Remember, these things are turning very quickly. So yes, the weather balloon will surely damage the engine if ingested. It might not fail in flight but it will cost the airline a lot of money to repair the damage. One hackers $500 weather balloon might cause over a $100,000 in damage to the inside of the engine. The blades aren’t cheap. Plus the first incident will have the FAA changing its rules instantly.
Gah, that’s a painful thought. If anything endangers planes the FAA looses it’s shit. It could fall on a baby and the FAA wouldn’t give a crap, but as soon as it gets anywhere near a plane, well…
The J52 is also a 1950s design that is out of production. Modern engines are… better.
Well, you have to consider that it is 100% the aircrafts fault (fast moving vehicle) for coliding into what is essentially a static object (super slow moving balloon) . To better illustrate this, who do you think is at fault if a car going 55 mph runs into a pedestrian going 0 miles per hour…. The car or the pedestrian? Its the cars fault or rather the driver of the car.
Airspace is a commons shared by all. Likewise so are public roads.
“FOD killed more pigs than MIGs”. For some reason they rejected that for a FOD poster contest when I was at SJAFB. I thought it was clever. But then, I was only a A1C.
FAA regs for the US say that it’s legal (and presumably safe) to launch balloons that…
Have a balloon smaller than 6 feet in diameter
Have a combined payload weighing less than 12 pounds
Have a single payload section weighing less than 6 pounds
And they have to stay out of Class B and C airspace (these are near the ground around medium to big airports).
Presumably, within these limits, the amount of havoc a balloon could cause in a collision would be pretty small.
I thought they fired the frozen birds at windscreens. I would think a high speed frozen turkey would be really hard on an engine. Remember the plane that injected some birds and landed in the Hudson?
The Rooster Booster (the cannon which tests windshields against birdstrike) is supposed to use thawed chickens.
This seems pretty irresponsible. Nice technical achievement but spending that much time at cruising altitude for trans ocean fights seems like a good way to cause an incident that gets amateur ballooning banned for everyone.
How could you possibly think that this amount of airtime was intentional? Or that a single incident would result in a worldwide ban on amateur ballooning?
Most weather balloons rise with an ascent rate of close to a 1000ft/min or greater meaning they’ve punched through the altitude a plane could possibly run into it fairly quickly into the flight. Not to mention nearly all issue a NOTAM with the FAA of the predicted flight area of the vessel.
This thing is just randomly flying around right at cruising altitude. Is it likely someone will hit it, of course not. It’s a big ass sky. Is it possible? I’d say they’re increasing the likelihood quite a bit through negligence.
Re safety comments: The balloons fly above commercial airplane altitude, so much noise for nothing
That seems pretty irresponsible why? The chance of this 11g (!!) payload bringing down an aircraft is just ridiculously low. Or are you that kind of guy lecturing kids about the dangers of launching paper airplanes without wearing safety goggles?
Engineers spend countless hours making sure that a 4-8 pound bird can not take a plane down. This payload is 0.024 pounds. It’s composed of a PCB, ~4 chips, some SMT passives, a battery, a small solar panel, and a bit of thin wire. The metals are soft metals. So the chance of anything serious happening in case of an impact is remote. The chance of an impact is remote. Remote x remote = remote^2 = yeah right whatever.
Let’s try a little thought experiment: Impose a worldwide ban on amateur high altitude baloons and weather balloons. Now measure the increase in aircraft security.
Meteorologists have been letting off balloons for decades and a meteo ransmitter is much more substantial than this little package.
Now a practical test, calculate the volume, in cubic mles, of the civil aviation flightpaths in your area, then look at the volume of this package (eleven grammes).
Not worth a Mythbusters episode, but the informtion in the comments is interesting.
Looks like it’s finally come to earth somewhere near Baghdad
Or not
predictor was trolling me
Does he sell the transmitters? Didn’t see them on his products page.
I’ve been searching for more info on the hardware too (it’s not very easy to find). It seems that the payload is described here: http://ava.upuaut.net/?p=675
It uses a cheap GPS module, an atmel and a 10mW Silicon Labs FSK transmitter for 433MHz. The AFSK seems to be generated in software which is a cool hack in itself.
That’s not Leo’s payload that’s mine. Leo’s are here : http://leobodnar.com/balloons/
And Echodelta if you were attempting funny you failed.
Ok, thanks for clearing that up. I really thought it was the same design, looking at the PCB. I loved reading your blog nontheless :-).
I enjoyed hearing Vin Lalley tell the story of how he nearly caused WWIII with a long range weather balloon during the Cold War years.
The Strategic Air Command was told to scramble jets if it ever re-entered US airspace, and pilots were instructed to ram the balloon with their jet if they could.
That Command happened to be all bombers and tankers and other support birds. The Command who would have done that would have been Tactical Air Command.
I could’ve misunderstood him…
Actually it would have probably been ADC Air Defense Command depending one when it happened.
Oops! that was Vin Lally,
http://www.ucar.edu/communications/staffnotes/0510/vinlally.html
These are really nice projects! Keep em coming!
Still going…
http://habitat.habhub.org/mobile-tracker/?filter=B-64
Well, at least as of a week ago. Let’s hope it re-appears!
Indeed, It’s a cliffhanger at the moment. The balloon seemed to be doing fine when radio-contact was lost. It was heading into the arctic regions, which means not a lot of sunlight and little APRS coverage. I watch it daily to see if it reappears.
I need to bay electronic sun lower power ballon
I need to have electronic for sun ballon