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Started By
Message
re: Do we get microburst in Louisiana?
Posted on 4/14/18 at 2:01 pm to White Roach
Posted on 4/14/18 at 2:01 pm to White Roach
quote:
Google Pan Am 759.
Fify
2
Posted on 4/14/18 at 2:39 pm to Loungefly85
quote:
Delta Flight 191
That and Pan Am 759 changed a lot in regards to microburst monitoring.
I think the Delta crash resulted in forward-looking radar becoming standard equipment in commercial airlines.
Posted on 4/14/18 at 2:56 pm to redstick13
quote:
think the Delta crash resulted in forward-looking radar becoming standard equipment in commercial airlines.
That's correct. I was searching for installation dates for the Doppler sites and ran across a FAA document that identified both crashs as the reasoning for improving weather info to flight crews. The basic gist was that it was calling for the installation at airports considered to be at higher risk of wind shear and cockpit weather radars to be installed by 1993. Kind of surprisingly, there are TDWRs at only 45 US airports.
Posted on 4/14/18 at 2:57 pm to Splackavellie
quote:
Fify
You're correct, it was Pan Am 759.
Posted on 4/15/18 at 11:56 am to redstick13
quote:
Delta Flight 191 in 1985 at Dallas was the crash that seemed to really put a spotlight on microbursts.
This catastrophe is the reason Doppler radar was developed and incorporated at major airpots.
Posted on 4/15/18 at 12:23 pm to Reservoir dawg
Explanation with good graphics from NWS: Looks like it's from here in BHM
Posted on 4/15/18 at 12:26 pm to DoctorTechnical
Windsheer can happen during a microburst, but they aren’t the same thing. Microburst are fairly rare, but can be extremely dangerous.
Posted on 4/15/18 at 1:30 pm to 257WBY
I experienced two during my ATC career, the first one basically hit the center of the airport(CRG) including the tower. When it hit we couldn't see out the tower windows, it looked like white sheets were covering all the windows. The wind instruments were pegged at 99 so we quickly evacuated the tower. We raced down the stairs and by the time we got down two floors it was over. It totaled 18 aircraft, snapped many pine trees, and scattered debris all over the airport.
The second event was at BTR with a DAL 727 or 737. The aircraft was close in on final when it was hit by a MB, the wind shear detection equipment alerted for a MB and I advised the pilot and he stated he was going around. I watched as he poured the coals to the aircraft and he was still being pushed down towards the ground short of the fence line. Luckily the MB was just east of final and he was able to power out of it. Both were very hair raising experiences to say the least.
The second event was at BTR with a DAL 727 or 737. The aircraft was close in on final when it was hit by a MB, the wind shear detection equipment alerted for a MB and I advised the pilot and he stated he was going around. I watched as he poured the coals to the aircraft and he was still being pushed down towards the ground short of the fence line. Luckily the MB was just east of final and he was able to power out of it. Both were very hair raising experiences to say the least.
Posted on 4/15/18 at 2:33 pm to iamAG
I had one at my house about five years ago . My front doors started whistling suddenly as the air passed under it and the house started shaking, the doors flew open and a tree in my front yard snapped in half . The whole thing was like 30 seconds. And then the same thing in my neighborhood Yesterday morning, taking down trees and power lines. It happens. Totally different from a tornado that is a much more defined event. I was in an F4 as a kid that wiped out Bossier City and I still crap a little in my pants when I think about that.
Posted on 4/15/18 at 2:58 pm to 257WBY
quote:
Windsheer can happen during a microburst, but they aren’t the same thing. Microburst are fairly rare, but can be extremely dangerous.
a fair amount of info in this thread, just a little bit of accuracy, not a lot
Posted on 4/15/18 at 3:46 pm to iamAG
Yes and you do not want to ever go through one as a pilot.
Posted on 4/15/18 at 4:06 pm to #1TigerFan
The 727 was especially vulnerable to windshear.
Posted on 4/16/18 at 9:40 am to Reservoir dawg
quote:
The 727 was especially vulnerable to windshear.
WTF is that supposed to mean?
Posted on 4/16/18 at 9:46 am to 777Tiger
quote:
WTF is that supposed to mean?
So was the DC10
Posted on 4/16/18 at 9:46 am to iamAG
There was a bad one in BR in March 2009 that tore up a lot of Southdowns... knocked down a lot of trees, many of which fell on houses/cars.
Posted on 4/16/18 at 9:50 am to Count Chocula
quote:
So was the DC10
DC10 was OK with windshear, just had a problem with engines separating and taking out all three hyds
eventually worked it out
Posted on 4/16/18 at 2:48 pm to 777Tiger
quote:
WTF is that supposed to mean?
Aviation people might say lower thrust/weight ratio, but it is characterized as a slow climber, especially toward MTOW. Although the 727 was built for optimum slow speed performance with its leading edge slat/flap design, it requires more speed to climb than most other types. At hot and high airfields climb performance is further reduced.
This post was edited on 4/16/18 at 2:50 pm
Posted on 4/16/18 at 3:54 pm to redstick13
quote:
Delta Flight 191 in 1985 at Dallas was the crash that seemed to really put a spotlight on microbursts.
Flew into Dallas some days later and landed on the same runway 191 fell short of. Eerie feeling because it was misting rain and there was still crash debris by the storage tank.
Posted on 4/16/18 at 4:27 pm to Reservoir dawg
quote:
Aviation people might say lower thrust/weight ratio, but it is characterized as a slow climber, especially toward MTOW. Although the 727 was built for optimum slow speed performance with its leading edge slat/flap design, it requires more speed to climb than most other types. At hot and high airfields climb performance is further reduced.
damn!!! I guess while I was flying that thing for 8000 hours in the left seat I should have been scared shitless! never heard any of that nonsense
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