Looking for some info on a unique whirly bird I saw today
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Looking for some info on a unique whirly bird I saw today
So, I thought maybe you guys would know what was up with this heli.
I saw a low-flying heli today cruising roughly 45knots pretty much right over I-95 down here in South Florida.
It seemed like a standard helicopter, bigger than an R44, similar to what you would see a news crew flying.
What made it unique, asides from the low flight and speed and being right over I-95 was that it had 2 "outriggers" or pylons on it made of tubular pipe, and at the end of each of these was a white disc-shaped object. I would say the discs were roughly 18 to 24 inches in diameter and maybe 4 inches thick.
At first I thought it was a high-tension power line ship, but I don't think the outriggers were beefy enough to support a person.
Was this some kind of radio reconnaissance bird?
Thanks everyone, i hope my poor description will help!
I saw a low-flying heli today cruising roughly 45knots pretty much right over I-95 down here in South Florida.
It seemed like a standard helicopter, bigger than an R44, similar to what you would see a news crew flying.
What made it unique, asides from the low flight and speed and being right over I-95 was that it had 2 "outriggers" or pylons on it made of tubular pipe, and at the end of each of these was a white disc-shaped object. I would say the discs were roughly 18 to 24 inches in diameter and maybe 4 inches thick.
At first I thought it was a high-tension power line ship, but I don't think the outriggers were beefy enough to support a person.
Was this some kind of radio reconnaissance bird?
Thanks everyone, i hope my poor description will help!
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I don't know if it's an exact duplicate, because the bird I saw only had the standard numbers on the tail, no additional writing/logo/names I could see.
However the booms are exactly right, as is the size of the bird and the color.
However the booms are exactly right, as is the size of the bird and the color.
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Now I'm wondering what they're doing mapping the magnetic topology in a place like South Florida which is comprised of nearly non-magnetic sedimentary rocks and contains so many buildings, cars and other objects.
Interesting to say the least!
I appreciate all of your sleuthing!
Interesting to say the least!
I appreciate all of your sleuthing!
More than likely a LIDAR survey.
The pans on the outriggers are the GPS antennas. Using C/A (carrier aided) GPS the accuracy is probably down in the +/- 150 mm range although possibly not in realtime. The GPS data is usually post processed against a fixed base station. The pans under the antennas are to stop reflected signals.
This arrangement would give you very accurate platform orientation in pitch roll and yaw.
There are many different proprietary software algorithms to achieve a GPS position and some C/A units will just not work under a rotor like this one.
The pans on the outriggers are the GPS antennas. Using C/A (carrier aided) GPS the accuracy is probably down in the +/- 150 mm range although possibly not in realtime. The GPS data is usually post processed against a fixed base station. The pans under the antennas are to stop reflected signals.
This arrangement would give you very accurate platform orientation in pitch roll and yaw.
There are many different proprietary software algorithms to achieve a GPS position and some C/A units will just not work under a rotor like this one.
