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On June 1, 2011, National Weather Service officials upgraded the tornado's preliminary EF4 rating to EF5 based on a combination of the damage to the Cactus 117 drilling rig site, the complete destruction of other buildings in the rig's vicinity, tossed vehicles, and the mobile Doppler radar data. [11]: 7
Initially deployed as part of the headquarters of Marine Aircraft Group 23, this detachment established an SCR-270 long range radar that allowed the Cactus Air Force to husband its critically short fighter assets during the early stages of the battle when control of the island was still very much in doubt. [1]
Mounted on the top of the vehicle was a Thomson-CSF pulse Doppler radar with fixed-echo suppression which rotated at 60 rpm and had a maximum detection range of 18.5 km against low-level targets with speeds of between 35 and 440 m/s and altitude limits between zero and 4,500 m. The system also had an IFF interrogator-decoder.
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AN/APN-77 Doppler radar set in SZ-1B, USN helicopters; AN/APN-78 Doppler radar set for helicopters; AN/APN-79 Doppler radar set by Teledyne for helicopters; AN/APN-81 Doppler radar set for RB/WB-66 WB-50 C-130 and KC-135; AN/APN-82 improved AN/APN-81 (with integration of AN/ASN-6); for EB/RB/WB-66 and KC-135; AN/APN-85 navigation radar by ...
The new radar is able to track 14 targets simultaneously while being able to simultaneously attack 6 of those. Raytheon delivered 180 APG-63(V)1 radar systems to the U.S. Air Force (4 of which have since been lost to crashes), and is on contract to deliver an additional 60 radars to the Republic of Korea Air Force for the F-15K Slam Eagle.
Before we get our first regular season pitch of the 2025 MLB season, there is spring training. Here's where those games will be played in 2025.
Mobile doppler weather radars have been used on dozens of scientific and academic research projects from their invention in the late 1900s. [1] One problems facing meteorological researchers was the fact that mesonets and other ground-based observation methods were being deployed too slow in order to accurately measure and study high-impact atmospheric phenomena. [1]