Loading the evidence…
Preparing your view.
Preparing your view.
Radar & sensorsIn service
Phased array Long-range radar
AN/FPS-117 is a phased array Long-range radar originating in United States. It was built by Lockheed Martin. Reported operators include Albania, Australia, Belgium, Brazil, Canada, Croatia, Denmark, Estonia, Germany, Hungary, Greece, Iceland, Iraq, Italy, Jordan, Kuwait, Latvia, Lithuania, Malaysia, Pakistan, Romania, Saudi Arabia, Singapore, South Korea, Taiwan, Thailand, Turkey, United Kingdom, United States.
United States
Lockheed Martin
1980 ( 1980 )
Phased array Long-range radar
1.215–1.4 GHz (24.7–21.4 cm) L-band
241 Pulses per second
51.2 / 409.6 μs
5–6 Rev/min
290 mi; 250 nmi (470 km)
100,000 ft (30.5 km)
0.18° at 160 mi; 130 nmi (250 km)
−6° to +20°
24.6 kW
Seek Igloo , AN/TPS-59 , AN/TPS-77 , RRP-117, AMES Type 92
Albania
Australia
Belgium
Brazil
Canada
Croatia
Denmark
Estonia
Germany
Hungary
Greece
Iceland
Iraq
Italy
Jordan
Kuwait
Latvia
Lithuania
Malaysia
Pakistan
Romania
Saudi Arabia
Singapore
South Korea
Taiwan
Thailand
Turkey
United Kingdom
United States
Reference text from Wikipedia contributors, used under CC BY-SA 4.0.
Points represent sourced observations, including revisions. Revisions on the same effective date are not separate inventory events. Ranges appear in the table and are not plotted as exact points.
| Observation / report period | Value | Source | Claim state |
|---|---|---|---|
| 29 Sept 2026 | 470 km | Wikipedia contributors | superseded |
AN/FPS-117 equipment records. Variants, orders and quantities are shown as reported in each inventory source; coverage is incomplete.
Royal Canadian Air Force (RCAF) exact named equipment holdings: AN/FPS-117 (range 200nm). Active, operational-reserve and training units excluding equipment in store; November 2025 IISS assessment. Named service only; no parent-force or national total inferred. Source role: AD RADAR / NORTH WARNING SYSTEM. Original estimates, ranges, reporting names, reserve, lease and employment scopes retained; nested included counts are not added. Missile-system quantities mean launchers, not rounds. No readiness, crew, carried weapon, payload, factory-production or future order count inherited.
Canada — Royal Canadian Air Force (RCAF) inventory holdings of the exact named AN/FPS-117 component. IISS holdings include active, reserve operational and training units and exclude equipment in store. Units are equipment items, not immediate combat readiness. No parent-design or sibling-variant total is inherited.
Number column of the Wikipedia list table under "Air surveillance". The list's own wording applies; it is a compiled secondary source, not an official census.
Number column of the Wikipedia list table under "Mobile radars". The list's own wording applies; it is a compiled secondary source, not an official census.
Number column of the Wikipedia list table under "Radar". The list's own wording applies; it is a compiled secondary source, not an official census.
Reported count for AN/TPS-77 · AN/TPS-77 MRR. Service scope: Equipment of the Lithuanian Air Force; does not replace a national total. 1 distinct quantity component(s) from the same source list; shared rowspan cells counted once. Explicit source inventory scope: ordered; no other stock status or total inferred. Count column(s): quantity: + 3. Origin: United States. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
Reported count for Lockheed Martin AN/FPS-117. Service scope: Republic of Singapore Air Force; does not replace a national total. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Excludes retired/reserve/on-order rows. Count column(s): in service: 1. Origin: United States. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
Reported count for AN/FPS-117. Service scope: Republic of China Air Force; does not replace a national total. 1 distinct quantity component(s) from the same source list; shared rowspan cells counted once. Explicit source inventory scope: active; no other stock status or total inferred. Count column(s): in service: 11. Origin: United States. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.
Strategic Defenses – Early Warning exact named equipment holdings: AN/FPS-117. Active, operational-reserve and training units excluding equipment in store; November 2025 IISS assessment. Named service only; no parent-force or national total inferred. Source role: RADAR / NORTH WARNING SYSTEM. Original estimates, ranges, reporting names, reserve, lease and employment scopes retained; nested included counts are not added. Missile-system quantities mean launchers, not rounds. No readiness, crew, carried weapon, payload, factory-production or future order count inherited.
Albania, Australia, Belgium, Brazil, Canada, Croatia, Denmark, Estonia, Germany, Hungary, Greece, Iceland, Iraq, Italy, Jordan, Kuwait, Latvia, Lithuania, Malaysia, Pakistan, Romania, Saudi Arabia, Singapore, South Korea, Taiwan, Thailand, Turkey, United Kingdom, United States
Equipment reference ↗Reported count for AN/FPS-117. Service scope: Republic of China Air Force; does not replace a national total. 1 distinct count cell(s) from the same source list; shared rowspan cells counted once. Excludes retired/reserve/on-order rows. Count column(s): in service: 11. Origin: United States. The listed variants/roles are the scope, not an immediately deployable count. The components do not establish one inventory census date; the stored date is the retrieved source snapshot.