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Lockheed NP-3 Orion
Photo: Aeroprints.com · Wikimedia Commons · CC BY-SA 3.0
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LockheedNP-3Orion

Maritime Patrol & ASW Aircraft · United States · 1961
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LockheedNP-3Orion

Lockheed NP-3 Orion
Lockheed NP-3 Orion Photo: Aeroprints.com · Wikimedia Commons · CC BY-SA 3.0
* Absolute score — assessed within category · no era adjustment
ASW Effectiveness
85
Sensor Suite
75
Endurance
90
Range
85
Weapons Payload
70
Sonobuoy Capability
80
Search Coverage
85
Reliability
80
Technology
70
Cost-Effectiveness
85
Origin United States
ManufacturerLockheed Corporation
CategoryMaritime Patrol & ASW Aircraft
EraEarly Cold War
In service1961–1990
Operators15 countries
Data Quality88%
81
Maritime Patrol & ASW Aircraft MASS Rating
2/23
Early Cold War
8/130
All-Time
Maritime Patrol & ASW Aircraft · 10 axes scored
ASW Effectiveness
85
Sensor Suite
75
Endurance
90
Range
85
Weapons Payload
70
Sonobuoy Capability
80
Search Coverage
85
Reliability
80
Technology
70
Cost-Effectiveness
85
ⓘ Regardless of era, the same scoring system applies to all units in the maritime patrol & asw aircraft category.
01 / Overview
Lockheed NP-3 Orion
Prime contractor
Production
1961–1990
Operators
💰 PERFORMANCE / PRICE ASSESSMENT Methodology ↗
MARITIME PATROL & ASW AIRCRAFT · EARLY COLD WAR
2
PERFORMANCE/PRICE
88
UNIT COST (2025 USD)
—
81
maritime patrol & asw aircraft category
ⓘ Performance/Price and MASS score are computed across all units in the maritime patrol & asw aircraft category, regardless of era.
02 / Specs & Design
◎General6MOD.6
  • Base AirframeLockheed L-188 Electra
  • Mission Typemaritime patrol and anti‑submarine warfare
  • Service Entry Year1962
  • Flight Crew11
  • Mission Crew5
  • In ServiceYes
◈Powerplant2MOD.2
  • Engine TypeAllison T56 turboprop
  • Number of Engines4
▣Performance5MOD.5
  • Cruise Speed560 km/h
  • Service Ceiling10,668 m
  • Range7,400 km
  • Endurance12
  • On-Station Time10
◇Mission Systems10MOD.10
◆Armament (ASW/Strike)3MOD.3
▤Dimensions3MOD.3
  • Length35.1 m
  • Wingspan35.1 m
  • Max Takeoff Weight40,800 kg
⬢Production2MOD.2
  • Total Built757
  • Operators1
▲Service History3MOD.3
  • Production Start1961
  • Production End1990
  • Operational StatusActive
03 / History
SERVICE LIFESPANStill in Service
  1. 1961Production started
  2. 1990Production ended
65
years in service
29
years in production
12
countries operating
ⓘ The producing country still actively operates it. 3 countries retired it.
04 / Operators
📖 TERMS ON THIS PAGE5terms
Anti-ship missiles are guided missiles designed to engage and destroy naval vessels. They are typically used by aircraft, ships, or submarines to attack enemy ships.
A Magnetic Anomaly Detector (MAD) is an instrument used to measure and detect variations in the Earth's magnetic field, primarily for locating submarines or other large metallic objects.
A sonobuoy is a expendable, self‑contained buoy equipped with acoustic or other sensors, deployed from aircraft to detect and track submarines or surface vessels.
Enables real-time sharing of position, targeting, and sensor data among aircraft and platforms for coordinated combat operations.
These terms are listed automatically because they appear on this page.full encyclopedia →
📚 Sources
📖 ENCYCLOPEDIA Browse the Maritime Patrol & ASW Aircraft entry →