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A typical shipboard ARPA/radar system. A marine radar with automatic radar plotting aid (ARPA) capability can create tracks using radar contacts. [1] The system can calculate the tracked object's course, speed and closest point of approach [2] (CPA), thereby knowing if there is a danger of collision with the other ship or landmass.
Spacecraft collision avoidance is the implementation and study of processes minimizing the chance of orbiting spacecraft inadvertently colliding with other orbiting objects. The most common subject of spacecraft collision avoidance research and development is for human-made satellites in geocentric orbits .
Both reserve components are primarily composed of part-time soldiers who train once a month, known as Battle Assembly, Unit Training Assemblies (UTAs), or simply "drills", while typically conducting two to three weeks of annual training each year. Both the Regular Army and the Army Reserve are organized under Title 10 of the United States Code.
The aircraft involved was a Boeing 707-321B (registration HK-2016). [2]: 21 The aircraft was manufactured in June 1967, and was purchased by Avianca from Pan Am in 1977.. By the time of the crash, the aircraft was 22 years old and had over 61,000 flight hou
a. Successfully complete the nine week Basic Horsemanship Course [9] b. Complete 100 Armed Forces Full Honors Funerals in Arlington National Cemetery c. Served honorably for a minimum of nine months, which need not be continuous, while assigned as a member of the U.S. Army Caisson Platoon, 3rd Infantry Regiment d.
The episode featured interviews from witnesses and accident investigators and recreations of the crash. [3] This episode aired on the Smithsonian Channel as Air Disasters season three, episode one. The accident was covered in MSNBC's Why Planes Crash in the episode "Collision Course", first aired April 27, 2010.
The JAL aircraft involved in the accident was an Airbus A350-941, [Note 2] operating as Flight 516, manufacturer serial number 538, and registered as JA13XJ. The aircraft was just over two years old at the time of the collision, first flying on 20 September 2021 and delivered to JAL on 10 November.
A low-flying British Army Westland Lynx AH.9 helicopter, ZE382, of 661 Squadron AAC, 1st Regiment, Army Air Corps, was caught in high-voltage electric wires during an Anglo-Czech joint military training exercise near the village Kuroslepy (near Brno). All six persons on board died.