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In aviation, a flight level (FL) is an aircraft's altitude as determined by a pressure altimeter using the International Standard Atmosphere. It is expressed in hundreds of feet or metres. The altimeter setting used is the ISA sea level pressure of 1013 hPa or 29.92 inHg. The actual surface pressure will vary from this at different locations and times. Therefore, by using a standard pressure setting, every aircraft has the same altimeter setting, and vertical clearance can be maintained during cruise flight.
This is a list of aviation-related events from 1914.
Black triangles are UFOs reported as having a triangular shape and dark color, typically observed at night, described as large, silent, hovering, moving slowly, and displaying pulsating, colored lights which they can turn off.
The Type 092 submarine is the first nuclear-powered ballistic missile submarine (SSBN) deployed by the People's Liberation Army Navy Submarine Force. Changzheng 6 is the only publicly known boat of its class.
The Atlantique incident occurred on 10 August 1999, when a Breguet Atlantic maritime patrol aircraft of the Pakistan Naval Air Arm was shot down by a MiG-21 fighter of the Indian Air Force over the Rann of Kutch, on the border between India and Pakistan. Sixteen Pakistani personnel including the pilots were killed as a result. The episode took place just a month after the Kargil War ended, aggravating already tense relations between the two countries.
Haiyang, is a coastal city in the Shandong province in eastern China, located on the Yellow Sea (southern) coast of the Shandong Peninsula. Its name translates directly to "ocean" (海) and "sun" (阳) in Mandarin. It is a county-level city under the administration of the prefecture-level city of Yantai and was the host city for the 2012 Asian Beach Games.
This is a list of alleged UFO sightings in the United States.
Below is a partial list of alleged sightings of unidentified flying objects or UFOs in Canada.
This is a list of alleged sightings of unidentified flying objects or UFOs in China.
In the afternoon of 23 April 2007, Ray Bowyer, a pilot flying south towards the island of Alderney in the English Channel sighted unidentified flying objects. He reported the sighting to an air traffic controller who told him that a second pilot had seen something similar. In Bowyer's report to the British Civil Aviation Authority he said he saw two bright, stationary objects. Two passengers on Bowyer's aircraft said that they saw unusual coloured lights at the same time. Proposed explanations for the sighting have included earthquake lights and sun dogs.
An air defense identification zone (ADIZ) is a region of airspace in which a country tries to identify, locate, and control aircraft in the interest of national security. It is declared unilaterally and may extend beyond a country's territory to give the country more time to respond to possibly hostile aircraft. The concept of an ADIZ is not defined in any international treaty and is not recognized by any international body.
The Battle of the River Forth was an air battle on 16 October 1939 between Supermarine Spitfires from No. 602 and No. 603 Squadrons of the Royal Air Force and Junkers Ju 88 bombers of 1. Gruppe Kampfgeschwader 30. It resulted when twelve Ju 88s attacked Rosyth naval base at the Firth of Forth. The raid was the first German air raid on Britain during World War II.
The Northern Theater Command is one of the five theater commands of the People's Liberation Army, founded on 1 February 2016. Its predecessor is the Shenyang Military Region, Jinan Military Region and Beijing Military Region. Its headquarters is in the Heping District of Shenyang, Liaoning Province. The Northern Theater Command shares borders with North Korea, Russia and Mongolia.
On June 20, 2019, Iran's integrated system of Air Defense Forces shot down a United States RQ-4A Global Hawk BAMS-D surveillance drone with a surface-to-air missile over the Strait of Hormuz. Iran and the U.S. differ on where the incident actually occurred. Iranian officials said that the drone violated their airspace, while U.S. officials responded that the drone was in international airspace.
The Pentagon UFO videos are selected visual recordings of forward-looking infrared (FLIR) targeting cameras from United States Navy fighter jets based aboard the aircraft carriers USS Nimitz and USS Theodore Roosevelt in 2004, 2014 and 2015, with additional footage taken by other Navy personnel in 2019. The four grainy, monochromic videos, widely characterized as officially documenting UFOs, have received extensive coverage in the media since 2017. The Pentagon later addressed and officially released the first three videos of unidentified aerial phenomena (UAP) in 2020, and confirmed the provenance of the leaked 2019 videos in two statements made in 2021. Footage of UAPs was also released in 2023, sourced from MQ-9 military drones.
From January 28 to February 4, 2023, a high-altitude balloon originating from China flew across North American airspace, including Alaska, western Canada, and the contiguous United States. On February 4, the U.S. Air Force shot down the balloon over U.S. territorial waters off the coast of South Carolina. Debris from the wreckage was recovered and sent to the FBI Laboratory in Quantico, Virginia, for analysis. Following a preliminary analysis of the debris in June, U.S. officials stated that the balloon carried intelligence-gathering equipment but does not appear to have sent information back to China. U.S. President Joe Biden described the balloon as carrying two railroad cars' equivalent of spy equipment, however stated that it was "not a major breach", and that he also believed that the Chinese leadership was not aware of the balloon. The U.S. government said the balloon had a propeller for maneuverability.
On February 10, 2023, the United States Air Force shot down a high-altitude object that had entered U.S. airspace over Alaska a day before. The object was shot down onto the Beaufort Sea. The Department of Defense said it was the size of a small car and flying northeast at approximately 40,000 feet (12,000 m), posing a risk to civilian flight. On February 16, 2023, US President Joe Biden stated that the downed object was probably a civilian-owned balloon and "most likely tied to private companies, recreation or research institutions".
On February 11, 2023, NORAD, at the direction of the Canadian Minister of National Defence and Chief of the Defence Staff, downed an unidentified object over Yukon.
On February 11, 2023, an octagonal unidentified flying object was detected over northern Montana. It disappeared until it was spotted the next day in Wisconsin, flying at 20,000 feet over the Upper Peninsula of Michigan. The object was tracked by NORAD.
References
- ↑ Shoaib, Alia (2023-02-12). "Chinese authorities said they were preparing to shoot down an 'unidentified flying object' spotted near the Yellow Sea". Business Insider . Retrieved 12 February 2023.
- ↑ Watt, Louise (2023-02-12). "China prepares to shoot down unknown flying object near coast". The Telegraph . Taipei . Retrieved 12 February 2023.
- ↑ Rahman, Khaleda (12 February 2023). "Now China Says It Has Spotted a UFO". MSN . Retrieved 12 February 2023.
- ↑ "China Ready to Down Object Flying Near Naval Base: Paper" . Bloomberg News . 12 February 2023. Archived from the original on 12 February 2023. Retrieved 13 February 2023.
- 1 2 Gan, Nectar; Chang, Wayne (13 February 2023). "China accuses US of 'illegally' flying balloons across its airspace". CNN. Archived from the original on 13 February 2023. Retrieved 13 February 2023.
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