Engineering, Integration & Flight Test

At the heart of Legionnaire International is an engineering and flight test team built for speed and precision. Our department runs on “Agile Sprint Methodology,” enabling us to design, develop, test, refine, analyze, build, and repeat in focused "small win" cycles turning ideas into validated hardware faster - minimum viable products are produced without cutting corners. Our engineering capabilities are powered by an industry-leading software suite:

  • SolidWorks — Mechanical design, FEA, and drawings

  • SolidWorks PDM — Engineering document control

  • Cameo — Model-Based Systems Engineering (MBSE)

  • Ansys — Computational Fluid Dynamics (CFD)

  • MATLAB — Data analysis

Our fleet of A-4 Skyhawks and chase aircraft is fully equipped to handle any mission required, including the integration and testing of advanced avionics, weapon systems, and pod systems for diverse applications.

Douglas A-4 Skyhawks & Chase Aircraft carry the load:

  • Rapid Weapons Integration & Test

  • Engine & Subsystem Pod Test

  • Telemetry Collection / Transmission

  • Airborne Radar, IR & Optics Test

  • Experimental / Engineering Systems Test

A person using a handheld scanner inside a cylindrical metal structure, possibly a rocket or missile, with blue laser lines and white dots for alignment or inspection.

R&D Engineering

Engineering at Legionnaire closes the loop between design and flight. Our engineers take a requirement, design the system, and prove it in the air. Analysis, drawings, instrumentation, simulations and aircraft integration all occur in one team.

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Advanced Weapons Design and Development

Specializing in the creation of sophisticated air-to-air and air-to-ground missiles, focusing on enhanced targeting accuracy, longer range, and increased lethality.

Night vision footage from a drone or aircraft showing two separate camera views of an open field with a road and some structures. On the left, a viewpoint of a building with a parking lot and surrounding trees. On the right, two vehicles are visible on a dirt or grassy area near the road.

Onboard Pod Systems Development

Designing and integrating state-of-the-art EO/IR, INS, GPS systems, optimized for navigation, targeting and engagement

A military jet plane flying high in the sky with a clear blue background and snow-capped mountains below.

Electronic Warfare and Countermeasure Systems

Crafting electronic warfare capabilities, including radar jamming and decoy systems, to protect warplanes from enemy detection and attacks.

APPROVED MILITARY FLIGHT TEST RANGES

Map of the United States showing major cities with red directional arrows pointing to specific locations, including Washington, Utah, New Mexico, Louisiana, Florida, Virginia, and California.

RANGES

. Dugway Proving Grounds

. White Sands Missile Range (WSMR - Holloman AFB)

. Eglin AFB Ranges

. W-147 (Ellington Field)

. W-174 (NAS Key West)

. Pt. MUGU Sea Range (NAS Pt. Mugu)

. Olympic Moa’s (NAS) Whidbey Island

. NAS China Lake

. Edwards AFB Ranges

. NAS Jacksonville

. NAS Patuxent River (Pax River)

. North Texas Regional Airport (KGYI)

FLIGHT TEST FLEET

A-4 Skyhawk

A modern fighter jet aircraft with a blue and gray color scheme, featuring the U.S. Air Force insignia on the wing, and a pilot visible in the cockpit.

. Speed - 585 kn (673 mph, 1,083 km/h)

. Wing Payload Capacity

. 5000lbs centerline

. 2500lbs wings

Internal Communications

. Mil-Std-1553

. Mil-Std-1760

. Time Sensitive Network (TSN)

. External Communication

. Silvus S-band

. Starlink

. Pit Testing

. Captive Carry

. Drop Testing

  • Glide Testing

  • Powered flight

  • Data Collection

. Live Warhead Drop Testing

TA-4j Skyhawk

. Speed - 586 kn (674 mph, 1084 km/h)

. Wing Payload Capacity

. 5000lbs centerline

. 2500lbs wings

Internal Communications

. Mil-Std-1553

. Mil-Std-1760

. Time Sensitive Network (TSN)

. External Communication

. Silvus S-band

. Starlink

. Pit Testing

. Captive Carry

. Drop Testing

  • Glide Testing

  • Powered flight

  • Data Collection

. Live Warhead Drop Testing

King Air c-90

A white and blue twin-engine propeller airplane from a high front angle.

. Speed - 220 kn (253 mph, 307 km/h)

. Communications

. Silvus S-band

. Starlink

. Chase Plane

. Command & Control

. Data collection / Relay

A white private jet with two engines, a blue tail with a logo, and swept wings.

CESSNA Citation 550

. Speed - 410 kn (472 mph, 759 km/h)

. Communications

. Silvus S-band

. Starlink

. Chase Plane

. Command & Control

. Data collection / Relay

Visit the full international site Here

Explore our test fleet
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Flight Maneuver and Handling Tests

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Data Collection and Analysis

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Engine Performance and Endurance Testing

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Weapon Systems Testing

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Post-Flight Analysis and Reporting

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Emergency Procedure Evaluation

Flight Maneuver and Handling Tests ✳︎ Data Collection and Analysis ✳︎ Engine Performance and Endurance Testing ✳︎ Weapon Systems Testing ✳︎ Post-Flight Analysis and Reporting ✳︎ Emergency Procedure Evaluation