80:, used to determine altitude by measuring air pressure, decreases with height. Efforts to reduce this separation above flight level 290 began almost immediately, but doing so without compromising safety required improvements in altimeters and other equipment, due in part to inherent difficulties in accurately determining and maintaining aircraft altitudes and, therefore, the actual vertical distance between aircraft. It was not until the 1990s that
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approval from the aircraft's state of registry to conduct operations in RVSM airspace. Non RVSM approved aircraft may transit through RVSM airspace provided they are given continuous climb/descent throughout the designated airspace, and 2,000 ft vertical separation is provided at all times between the non-RVSM flight, and all others for the duration of the climb/descent.
174:"State aircraft", which includes aircraft used in military, customs and police service, are exempted from the requirement to be RVSM approved. Participating states have been requested, however, to adapt their state aircraft for RVSM approval, to the extent possible, and especially those aircraft used for General Air Traffic (GAT).
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Only aircraft with specially certified altimeters and autopilots may fly in RVSM airspace, otherwise the aircraft must fly lower or higher than the airspace, or seek special exemption from the requirements. Additionally, aircraft operators (airlines or corporate operators) must receive specific
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systems became sufficiently accurate to safely reduce the vertical separation minimum. Thus, RVSM in effect constituted a return to the original procedures established in the mid-1940s, with the notable difference that 500 feet separation is only permitted between IFR and VFR flights (on
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to 300 m, of required vertical separation of aircraft between altitudes 8,850 and 12,500 m. This reduction in vertical separation minimum therefore increases the number of aircraft that can fly in a particular volume of
129:. The North Atlantic implemented initially in March 1997 at flight levels 330 through 370. The entire western hemisphere implemented RVSM FL290–FL410 on January 20, 2005. Africa implemented it on September 25, 2008.
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In the 1940s (original ICAO regulations), standard separation was 1000 feet except in specific circumstances, when it was 500 feet. In 1958 the standard vertical separation of aircraft in
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290, and at 2,000 feet above flight level 290. The larger minimum separation at higher altitudes was necessary because the accuracy of
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Authorization of
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If the RVSM level is exceeded it is an 'incident' and needs to be reported within 72 hours.
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No damage outside the
Structural Repair Manual (SRM) limits in the RVSM critical areas
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Altimetry System Error (ASE) and its effects on operations in RVSM airspace
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on
November 17, 2011. However, in some FIRs, meters are still in use below
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371:“State Air Traffic Management Corporation of the Russian Federation”
23:) is the reduction, from 2,000 feet to 1,000 feet, of the standard
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SSR (secondary surveillance radar) altitude reporting transponder
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List of aviation, aerospace and aeronautical abbreviations
35:) and flight level 410 (41,000 ft). Expressed in the
367:"The New Airspace Structure over European Part of Russia"
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Flight Crew approved training program / Op Specs
Approval
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CAAC RVSM FLIGHT LEVEL ALLOCATION SCHEME on China RMA
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Between 1997 and 2005 RVSM was implemented in all of
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467:Use of Trailing Cones for RVSM Certification
184:Two independent altitude measuring systems
426:International Civil Aviation Organization
39:(SI), it is the reduction, from 600
27:required between aircraft flying between
147:continued to use flight levels in feet.
393:"SPARVSM115 RVSM height-keeping errors"
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210:Acronyms and abbreviations in avionics
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457:Friendlier Skies – Washington Times
17:Reduced vertical separation minimum
452:FAA article promoting the new rule
240:Traffic collision avoidance system
235:Strategic lateral offset procedure
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140:on 21 November 2007. But the
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415:Silva, Saulo (April 2010).
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312:Silva 2010 pp. 18–21.
134:People's Republic of China
303:Silva 2010 pp. 9–15.
336:January 6, 2012, at the
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180:Equipment Requirements:
89:non-converging tracks).
84:(ADCs), altimeters, and
418:A Brief History of RVSM
321:Silva 2010 p. 17.
492:Altitudes in aviation
230:North Atlantic Tracks
190:Altitude alert system
156:flight levels in feet
154:implemented RVSM and
52:Historical background
482:Air traffic control
373:. December 10, 2020
58:controlled airspace
46:controlled airspace
25:vertical separation
487:1997 introductions
152:Russian Federation
82:air data computers
279:"history of rvsm"
60:was set at 1,000
31:290 (29,000
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462:RVSM on Skybrary
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103:North Africa
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74:flight level
66:ground level
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138:metric RVSM
476:Categories
247:References
78:altimeters
193:Autopilot
142:Hong Kong
86:autopilot
70:sea level
431:March 1,
334:Archived
204:See also
377:May 2,
242:(TCAS)
125:, and
99:Europe
422:(PDF)
353:(PDF)
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64:from
433:2019
379:2021
150:The
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21:RVSM
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