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Magical Realist
Sep 11, 2025 09:01 PM
(This post was last modified: Sep 11, 2025 09:11 PM by Magical Realist.)
Quote:Apparently most only last a few hours and burst unless shot down.
As per the laws of physics, all helium weather balloons quickly ascend to a height of 90,000 to 125,000 ft into the atmosphere until they pop dropping their radiosonde. None of them hang around at sea level and furtively zip around horizontal to the ground. There's a lot helium in those things, providing a powerful and non-stop lifting force..
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Syne
Sep 11, 2025 09:29 PM
(This post was last modified: Sep 11, 2025 09:33 PM by Syne.)
(Sep 11, 2025 08:09 PM)confused2 Wrote: (Sep 11, 2025 07:12 PM)Syne Wrote: If it is parallax motion, the apparent speed would not match that of the camera, as it would also be dependent on the distance from the object and the ocean.
A Reaper drone's cruise speed (airspeed) is 120 mph, but actual speed, relative to the ground (groundspeed), would also depend on the wind speed and direction. In a strong headwind, it's groundspeed could be significantly slower.
Let's try for a guess at the speed the background waves are moving relative to the thing.. before we allow for parralax .. I'm going with 20 feet between crests and about 3 a second .. make your own estimate. .. ???
I'd say the drone [camera] is roughly holding position with the thing .. so the thing is moving left to right in a 60 mph wind .. the following drone is moving left to right at 60mph with a following wind of 60 mph .. drone's speed relative to the air is therefore zero and the drone drops out of the sky.
So.. is the thing moving at about 60mph without a wind to drive it?
Edit .. or the camera was on a helicopter.. without other information I'd go with that.
Reaper drones cannot hover. They are a fixed wing aircraft. So there is no "holding position with the thing." Their cruise airspeed of 120 mph is generally the speed necessary to remain aloft. Assuming your 60 mph relative speed between the ocean and the object, it seems reasonable that the apparent speed of the ocean and object are splitting the 120 mph airspeed of the drone... the object being relatively stationary with respect to the ocean.
While we can't see all the numbers at the corners of the screen, they would seem to be changing, likely sensors for distance to target.
The abbreviations TGT, M, and NM in military drone footage refer to targeting and measurement data. The specific values and display can vary based on the drone and the ground control software being used.
TGT: Target
Definition: The intended objective or point of focus for the drone's sensors or weaponry.
Usage: The system may automatically track a target and display "TGT" along with its coordinates on the operator's screen.
M: Multi-role or status prefix
The "M" designation can have multiple meanings depending on the specific system and its context.
Multi-role: In the context of an aircraft's model designation, like the MQ-9 Reaper, the "M" indicates a multi-role capability.
Maintenance: In a status prefix for a vehicle that is not in normal service, "M" can indicate maintenance.
NM: Nautical miles
NM is a unit of distance used in military aviation and maritime navigation. It may appear in different contexts within the drone footage:
Distance to target: The distance from the drone to the target may be displayed in nautical miles.
Visibility: While nautical miles are used for distance, statute miles (SM) are often used for measuring visibility in flying. A drone's sensor display might show both
- Google AI
Assuming the drone sensors are measuring 5.42 nautical miles to the ocean and 3.69 nautical miles to the object, the object is significantly closer, which will cause more parallax motion with the background.
To determine the distance of an object moving with 60 mph parallax motion relative to a 120 mph camera, you must use the principle of similar triangles, assuming a constant camera speed and a static, distant background
. Since parallax is about relative displacement, the perceived speed of the object is proportional to the camera's speed and inversely proportional to the object's distance.
...
Step 1: Calculate the displacement ratio The ratio of the camera's speed to the object's apparent speed is a key indicator of their relative distances.
Ration = velocity of camera/apparent velocity of object = 120mph/60mph = 2
This means the camera is moving twice as fast as the object appears to be, suggesting the object is farther away than the camera's baseline distance.
...
Summary
Without specific values for the camera's lateral movement and focal length, the precise distance cannot be determined. However, the parallax ratio indicates that the object is located at a distance approximately twice the camera's lateral distance traveled.
- Google AI
(Sep 11, 2025 09:01 PM)Magical Realist Wrote: Quote:Apparently most only last a few hours and burst unless shot down.
As per the laws of physics, all helium weather balloons quickly ascend to a height of 90,000 to 125,000 ft into the atmosphere until they pop dropping their radiosonde. None of them hang around at sea level and furtively zip around horizontal to the ground. There's a lot helium in those things, providing a powerful and non-stop lifting force..
A weather balloon can reach a stable, "float" altitude by using a super-pressure balloon design, which maintains a constant volume and can stay at high altitudes for extended periods, or a zero-pressure balloon that vents gas to regulate its altitude and prevent bursting.
- Google AI
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Magical Realist
Sep 11, 2025 09:38 PM
Quote: can stay at high altitudes for extended periods
Right...at high altitudes, not at sea level.
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Syne
Sep 11, 2025 09:53 PM
(Sep 11, 2025 09:38 PM)Magical Realist Wrote: Quote: can stay at high altitudes for extended periods
Right...at high altitudes, not at sea level.
A "balloon holding at 3 miles ASL" refers to a high-altitude balloon that is maintaining a specific, fixed position in the sky at an altitude of approximately 15,840 feet above sea level. The phrase typically relates to the operation of a high-altitude platform for surveillance, communications, or scientific research.
- Google AI
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Magical Realist
Sep 11, 2025 10:31 PM
(This post was last modified: Sep 11, 2025 10:33 PM by Magical Realist.)
Quote:A "balloon holding at 3 miles ASL" refers to a high-altitude balloon that is maintaining a specific, fixed position in the sky at an altitude of approximately 15,840 feet above sea level.
"Weather balloons do not stabilize at a specific altitude during a standard flight; they continuously ascend until the change in atmospheric pressure causes them to burst. This bursting typically happens at altitudes between 60,000 and 105,000 feet (18 to 32 km)."
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Syne
Sep 11, 2025 10:37 PM
(Sep 11, 2025 10:31 PM)Magical Realist Wrote: Quote:A "balloon holding at 3 miles ASL" refers to a high-altitude balloon that is maintaining a specific, fixed position in the sky at an altitude of approximately 15,840 feet above sea level.
"Weather balloons do not stabilize at a specific altitude during a standard flight; they continuously ascend until the change in atmospheric pressure causes them to burst. This bursting typically happens at altitudes between 60,000 and 105,000 feet (18 to 32 km)."
Notice how you have to dishonestly omit the part that says, "The phrase typically relates to the operation of a high-altitude platform for surveillance, communications, or scientific research."
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Magical Realist
Sep 11, 2025 10:39 PM
(Sep 11, 2025 10:37 PM)Syne Wrote: (Sep 11, 2025 10:31 PM)Magical Realist Wrote: Quote:A "balloon holding at 3 miles ASL" refers to a high-altitude balloon that is maintaining a specific, fixed position in the sky at an altitude of approximately 15,840 feet above sea level.
"Weather balloons do not stabilize at a specific altitude during a standard flight; they continuously ascend until the change in atmospheric pressure causes them to burst. This bursting typically happens at altitudes between 60,000 and 105,000 feet (18 to 32 km)."
Notice how you have to dishonestly omit the part that says, "The phrase typically relates to the operation of a high-altitude platform for surveillance, communications, or scientific research."
LOL Yep..that's what weather balloons do. So what?
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Syne
Sep 11, 2025 10:45 PM
(Sep 11, 2025 10:39 PM)Magical Realist Wrote: (Sep 11, 2025 10:37 PM)Syne Wrote: (Sep 11, 2025 10:31 PM)Magical Realist Wrote: Quote:A "balloon holding at 3 miles ASL" refers to a high-altitude balloon that is maintaining a specific, fixed position in the sky at an altitude of approximately 15,840 feet above sea level.
"Weather balloons do not stabilize at a specific altitude during a standard flight; they continuously ascend until the change in atmospheric pressure causes them to burst. This bursting typically happens at altitudes between 60,000 and 105,000 feet (18 to 32 km)."
Notice how you have to dishonestly omit the part that says, "The phrase typically relates to the operation of a high-altitude platform for surveillance, communications, or scientific research."
LOL Yep..that's what weather balloons do. So what?
Illiterate moron.
The key difference is purpose: Weather balloons measure atmospheric conditions, scientific balloons carry experiments for research in various fields, communication balloons relay data or signals, and surveillance balloons are for intelligence gathering. While weather balloons are small and burst at high altitudes, other types can be much larger, stay airborne longer, carry larger payloads, and use different, non-elastic materials to avoid bursting and enable extended missions.
- Google AI
As usual, you just keep proving your endless ignorance.
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Magical Realist
Sep 11, 2025 10:56 PM
(This post was last modified: Sep 11, 2025 11:10 PM by Magical Realist.)
Quote:While weather balloons are small and burst at high altitudes, other types can be much larger, stay airborne longer, carry larger payloads, and use different, non-elastic materials to avoid bursting and enable extended missions.
LOL Yep...all at high altitudes, not sea level. It's why nobody ever sees weather balloons floating around, except for skeptics desperate for some debunk..
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Syne
Sep 11, 2025 11:21 PM
(Sep 11, 2025 10:56 PM)Magical Realist Wrote: Quote:While weather balloons are small and burst at high altitudes, other types can be much larger, stay airborne longer, carry larger payloads, and use different, non-elastic materials to avoid bursting and enable extended missions.
LOL Yep...all at high altitudes, not sea level. It's why nobody ever sees weather balloons floating around, except for skeptics desperate for some debunk..
You do know that sea level is at the surface of the water, right?
Or are you really that big of a moron?
If the drone footage is showing distance to target, it's at least 1 or 2 miles above sea level.
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