PPRuNe Forums - View Single Post - Alaska Airlines 737-900 MAX loses a door in-flight out of PDX
Old 8th Jan 2024, 03:10
  #329 (permalink)  
remi
 
Join Date: Jan 2023
Location: Puget Sound, WA
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Originally Posted by OldnGrounded
Someone here pointed out that the flying door/plug would probably give a clear primary radar return. Yesterday, NTSB Chair Homendy told the press briefing that the door/plug was likely to be found around Barnes Road and Highway 217.
ASR-11 test requirement is detection of 1m2 RCS with a single pulse at a range of 55 nmi with a probability of 0.8. That is to say, even though it's smaller than an aircraft, an object the size of a door is precisely within the design of the radar to detect. What the RCS of a falling metal door plug is, who knows, but it's not stealthy.
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