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Questions tagged [balloon]

The category of lighter-than-air flight where gas or hot air provides buoyancy

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Temperature Indicator in Manned Balloon

14CFR31.85 ("Required Basic Equipment" for manned free-air balloons) requires an Envelope Temperature Indicator (ETI). This is a requirement of the FAA. Not necessarily the manufacturer. Some balloon ...
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1answer
180 views

What does it cost to get a hot air balloon to 30,000ft?

I'm interested to know what it would take to get a hot air balloon, with a 600lb load, to 30,000 feet. Is this cheaper than flying a plane with a similar load to the same altitude? If a special ...
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1answer
199 views

Hot helium balloon this way? [closed]

Is it possible to make a helium balloon with a clear side to create lift from the heat from the Sun entering a transparent side like a hybrid hot air/helium blimp? How would the direction of the ...
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0answers
211 views

Are these ballast bags for a hot air balloon?

While driving around on the back side of Aspen Mountain (so up around 10,000 feet altitude) we came upon these bags of ash. They look like they could be opened up on the bottom to let the contents ...
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3answers
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How do hot air balloons navigate?

Hot air balloons are quite obviously carried along with the wind, so how can they be navigated? Choosing the correct launch point relative to the desired landing point would seem to play a major part ...
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2answers
187 views

Is it possible to build a honeycombed vacuum balloon? [closed]

Is it possible to build a vacuum balloon with a near perfect void that can lift heavy objects and doesn't collapse and buckle under the atmosphere? I expect perhaps a honeycombed or lorimerlite ...
2
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1answer
143 views

Are there any locations where I could launch a rockoon with minimal red tape?

I'm currently working on a research project on hypersonic control surfaces, and as part of it, I'd like to launch a rocket-assisted lifting body from a high-altitude balloon. Are there any locations ...
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3answers
12k views

How do hot air balloon pilots avoid collisions?

There are many places in the world where hundreds of hot air balloons are flown in close proximity to each other. How do the pilots steer them away from each other to avoid mid-air collisions? Wind ...
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3answers
522 views

Is it legal for a balloon to land at a US international airport?

Assuming the winds directed a hot air balloon near a US international airport, and the pilot has no other choice than landing, say near the runways/taxiways, would they face legal trouble/fines?
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2answers
393 views

If unable to procure Helium, are there any regulations against filling lighter than air craft with Hydrogen instead?

The price of helium is going up again, and it is very difficult to find suppliers without established contracts. If all possible safety measures are taken, are there still regulations by FAA or other ...
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2answers
199 views

How to fill out IFR flight plan for manned helium balloon flight into class A airspace with no predetermined route or destination and less crew?

Per FAA regulations, an IFR flight plan must be filed before going above 18,000 feet MSL as this is class A airspace. How do we fill out the IFR flight plan if the destination landing site and the ...
5
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1answer
575 views

What is the quickest way to get an airship rating?

I already have private pilot for single engine land with instrument and commercial ratings.
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1answer
237 views

Do FAA sectional charts show all power/transmission lines?

The FAA's sectional aeronautical charts include some power/transmission lines. How complete is this? I am specifically interested in using something like ForeFlight for aeronautical charts while hot ...
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2answers
536 views

Is it technically possible to have nuclear-powered hot-air balloons?

Could a balloon use non-fissile isotope, like Pu-238, to heat air in the envelope to stay afloat for years? let's put political and health related problems aside, and consider if it's technically ...
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2answers
348 views

Can balloons be stacked in a climable daisy chain to the edge of space? [closed]

How high can a balloon/s be and still be tethered to the ground? The most common problem was finding the calmest place on Earth. The longest balloon chain is 20 km Pictures below are basic ...
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1answer
586 views

Are weather balloon launches NOTAM'ed?

Are weather balloon launches NOTAM'ed? Related, how frequent (periodically and spatially) are they for gathering data on wind-aloft, etc.?
4
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1answer
123 views

What would be the process to approve a minimal, standardized flight recorder for commercial balloons?

According to this article about the recent balloon event, the NSTB will try to interrogate personal electronic devices for any related data. Since some of these mentioned in the briefing do not ...
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1answer
207 views

What are these autonomous, shape-shifting indoor neutral-density craft I read about?

This may be on the edge of off-topic. I am trying to read more about a technology where generally autonomous (though could be sent commands), neutral-buoyancy craft were navigating indoors, in large ...
22
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1answer
2k views

How do hot air balloons get started (without burning the fabric)?

I have seen photos of hot air balloons aloft with fearsome looking burners shooting flames into the interior of the balloon. That may be fine for a fully inflated balloon. But what about when the ...
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0answers
146 views

How to calculate the force exerted by pressure on hot air balloon envelope fabric? [closed]

How to calculate the force of hot air balloon envelope fabric? and how to select a fabric which can bear this force? For example, a spherality balloon: $r=10~m$ $T_1=100~°C$ $ρ_1=0.95~kg/m^3$ $T_2=20~...
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3answers
4k views

Why do blimps have fins?

Why do blimps have fins? Can't the two (or so) engines already control direction?
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3answers
2k views

What lifting gas was used for barrage balloons during the world wars?

During the world wars, various barrage balloons were used to protect targets from low-flying aircraft or similar threats (e.g. V-1 flying bombs), in particular by Britain. What lifting gas was used ...
6
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1answer
128 views

What are the FAA regulations concerning controlled descent of a light payload?

I'm part of a High Altitude Ballooning club. Our main goal for this year is to achieve controlled descent of our payload. We plan to use Magnus force cylinders to go about this. I have found nothing ...
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2answers
914 views

I'm thinking of building a balloon-launched glider, is this idea plausible?

So, I know nothing about aviation. I'm a student studying maths and computing and I feel like building a high altitude glider controlled by a Raspberry Pi and Arduino as a personal project. First ...
8
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3answers
982 views

Can a weather balloon move horizontally?

How does a hobby weather balloon control its flight path? Just it just keep rising straight up vertically, always at the mercy of the winds, being swayed side to side? Unlike a rocket/drone, it does ...
13
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2answers
3k views

How quickly can a hot air balloon climb?

What's a typical rate of climb for a hot air balloon, assuming stable air with no updrafts? I'm thinking of the classic 'sightseeing ride' type of balloon here.
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4answers
1k views

How does one launch unmanned high-altitude balloons without posing a safety risk to aviation?

How can people launch balloons privately (filled with helium or hydrogen) that reach the altitude of 30,000 feet? Isn't that a safety risk in the same way as geese?
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1answer
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What kind of balloons are these?

I came across the following picture on a news site, in a series of 'this day in...' type items. The accompanying text reads (in Dutch) 22 juni 1975 - In Geldrop werd de Internationale Holland ...
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1answer
447 views

can the wreckages of a hot air balloon and a hang glider be salvaged for a working hang glider?

I'm currently working through my collection of Spike and Suzy albums, and in the album I'm currently reading, one of the main characters crashes with a hot air balloon near the wreckage of a hang ...
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3answers
3k views

Do hot air balloon pilots file flight plans?

Are hot-air balloon pilots ever required to file flight plans? (can they file?)
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1answer
717 views

What instruments or avionics do balloons usually have?

For normal sightseeing flights in a typical hot air balloon, what instruments or avionics does the pilot usually carry? Do balloons have a minimum equipment list?
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2answers
2k views

Does adding a motorized fan to a hot air balloon change its class as an aircraft?

I have seen fans like these for use in ballooning and glider propulsion. Does adding one of these change the definition of the flight vehicle? e.g. is it No longer a balloon, but now an aircraft? ...
9
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1answer
480 views

How does a pilots license of cluster ballooning differ from other ballooning or unpowered flight?

John Ninomiya discusses his experience with developing this new style of ballooning on his Cluster Ballooning website. Many of the site's links are now broken, but on there he formerly attested that ...