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VX-23
VX-23
VX-23
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Air Test and Evaluation Squadron 23
VX-23 Insignia
Active22 July 1995 - present
Country United States
Branch United States Navy
TypeSpecial flight test aircraft squadron
Garrison/HQNaval Air Station Patuxent River
NicknameSalty Dogs
ColorsSD

Air Test and Evaluation Squadron 23 (VX-23) is an aviation unit of the United States Navy based at Naval Air Station Patuxent River, Maryland, United States. The squadron was established on 22 July 1995. Using the tail code SD, the squadron operates multiple aircraft types of the United States Navy for test and evaluation purposes. The aircraft fly with the radio callsign Salty Dog.

Overview

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Aircraft assigned to VX-23 include EA-6B, F/A-18E, F/A-18C and T-45.

VX-23 is an aircraft test squadron that conducts research, testing and evaluation of fixed wing tactical aircraft and UAV's. VX-23 provides aircraft, pilots, maintenance services, safety oversights and facility support for these operations. Their main mission is flying qualities and performance evaluations, shipboard suitability, propulsion system testing, tactical aircraft mission systems testing, ordnance compatibility and ballistics efforts, reliability and maintainability assessments, flight fidelity simulation and flight control software development. The squadron also provides Government Flight Representative, test monitoring, chase aircraft support, facilities for contractor demonstration, validation and development work involving tactical aircraft and associated systems. The squadron currently flies the T-45 Goshawk, F-35B/C Lightning II, F/A-18B/C/D Hornet, F/A-18E/F Super Hornet, E/A-18G Growler, and MQ-25 Stingray.

An VX-23 F/A-18A (BuNo 163093 'SD105') releases Mk 83 bombs over the Atlantic Test Range, July 2002.

History

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The squadron was established in on 22 July 1995 as the Naval Strike Aircraft Test Squadron and redesignated VX-23 on 1 May 2002.[1] During the years VX-23, has tested and evaluated fixed-wing fighter, attack and other designated aircraft including EA-6B, F-14, F/A-18 and T-45. VX-23 hosted and provided Flight Test Aircrew for the Joint Strike Fighter X-32 and X-35 concept demonstration aircraft as well as the X-31 VECTOR test vehicle.

The squadron consists of about 40 officers and 90 enlisted drawn from the US Navy and US Marine Corps and also 340 contractor and civil servant personnel involved with maintenance, planning and safety oversight. These people support the squadron's 40 F/A-18A-G, EA-6B and T-45 aircraft. Additionally the squadron is supported by hundreds of flight test engineers provided by NAVAIRSYSCOM 5.1.6 (Test and Evaluation Engineering) and various other contractors. The squadron conducts over 2,600 flight operations every year which sums up to roughly 3,500 flight hours, much of which involves high-risk flight test. VX-23 conducts operations from a facility that includes three large hangars and also operates and maintains a TC-7 catapult and MK-7 arresting gear facility.[2]

21st century

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An F-35C Lightning II carrying two AGM-158C LRASM anti-ship missiles over NAS Patuxent River.

On 4 June 2021, the first refuelling test and evaluation flight was conducted with the MQ-25 drone refuelling aircraft providing fuel to an F/A-18E/F Super Hornet. The test had the MQ-25 originate at MidAmerica Airport in Mascoutah, Illinois, and the F/A-18 was from the VX-23. The mission lasted about 4.5 hours, and the two aircraft were connected for dry or wet connects numerous times for a total time of more than 10 minutes, with a total of 325 pounds of fuel passed.[3]

See also

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References

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Revisions and contributorsEdit on WikipediaRead on Wikipedia

VX-23

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from Grokipedia
Air Test and Evaluation Squadron 23 (VX-23), known as the "Salty Dogs," is the Navy's largest aviation test and evaluation squadron, based at , . The squadron's primary mission is to conduct , development, test, and (RDT&E) activities to ensure that fixed-wing strike, electronic attack, and training aircraft, along with associated unmanned systems and weapons, are safe, efficient, and effective for operations by the U.S. Navy and Marine Corps. It supports 11 different types, models, and series of aircraft, including the F/A-18A-D Hornet, F/A-18E/F Super Hornet, EA-18G Growler, F-35B/C Lightning II, T-45A/C Goshawk, and MQ-25 Stingray unmanned aerial refueling drone. Established on July 22, 1995, as the Naval Strike Aircraft Test Squadron and redesignated as VX-23 on May 1, 2002, the unit operates under the Aircraft Division (NAWCAD) as part of the Naval Test Wing Atlantic. With a workforce exceeding 500 , , and contractor personnel—including flight test engineers—VX-23 conducts over 3,000 flight operations and approximately 4,400 flight hours annually, often supporting multiple detachments and projects simultaneously. Notable contributions include certifying nuclear carrier and amphibious ship flight decks, precision approach landing systems, electromagnetic aircraft launch systems (EMALS), and advanced arrested gear (AAG), as well as integrating weapons and evaluating carrier suitability for key platforms like the F-35 and F/A-18 series. The squadron's work ensures the readiness of assets, from developmental testing to fleet introduction, maintaining U.S. superiority in carrier-based air power.

Unit Background

Establishment

The Naval Strike Aircraft Test Squadron was established on 21 July 1995 at Naval Air Station Patuxent River, Maryland, as part of the Naval Air Warfare Center Aircraft Division (NAWCAD). This formation followed the signing of OPNAV Notice 5450 on 8 May 1995, which formalized the squadron's creation amid broader post-Cold War naval aviation restructuring efforts aimed at streamlining operations and enhancing efficiency in a downsized military environment. A ceremony on 21 July 1995 formally activated the Naval Test Wing Atlantic, including the squadron, with Capt. Raymond A. Dudderar assuming command of the Wing. The squadron was integrated into the Naval Test Wing Atlantic structure, alongside units such as the Naval Rotary-wing Aircraft Test Squadron and the U.S. Naval Test Pilot School, to centralize developmental testing resources previously managed through the Strike Aircraft Test Directorate, which had been operational since 1975. The initial mandate of the squadron focused on conducting developmental testing and evaluation for fixed-wing strike , including fighters, attack platforms, and systems, to support research, development, test, and evaluation (RDT&E) of technologies. This purpose addressed the need to adapt to budget constraints and evolving global security demands by consolidating testing capabilities from dispersed directorates and sites affected by (BRAC) initiatives, thereby improving the delivery of safe and effective weapon systems to the fleet. Upon establishment, the squadron was assigned the tail code "SD," reflecting its role within NAWCAD's integrated framework for aeronautical systems advancement.

Redesignation

On 1 May 2002, the Naval Strike Aircraft Test Squadron, originally established in 1995 as a dedicated unit for strike aircraft evaluation at Naval Air Station Patuxent River, was redesignated Air Test and Evaluation Squadron 23 (VX-23) to align with standardized Navy test squadron nomenclature and broaden its operational mandate. This transition expanded VX-23's responsibilities beyond fixed-wing strike aircraft to include electronic attack platforms and unmanned systems, reflecting the evolving needs of naval aviation research, development, test, and evaluation (RDT&E). For instance, in April 2002—just prior to the formal redesignation—an EA-6B Prowler electronic attack aircraft was delivered to the squadron and assigned the "Salty Dog 534" tail number, marking early integration of such capabilities. Upon redesignation, VX-23 adopted the longstanding "Salty Dogs" callsign, evoking the rugged heritage of naval test pilots at . The squadron also began initial integration of T-45 testing, with dedicated lead test pilots assigned to evaluate its carrier suitability and systems enhancements shortly thereafter.

Mission and Operations

Role in RDT&E

VX-23 serves as a pivotal component in the U.S. Navy's research, development, test, and evaluation (RDT&E) framework, focusing on advancing capabilities through rigorous . The squadron supports the RDT&E of 11 different types, models, and series of fixed-wing strike, electronic attack, , and unmanned , providing essential , , and resources to facilitate the safe and effective integration of emerging technologies into operational fleets. Operating under the Naval Air Warfare Center Aircraft Division (NAWCAD) at , , VX-23 collaborates closely with NAWCAD engineers and program offices to oversee developmental testing phases. This includes envelope expansion to explore performance limits and systems integration to verify compatibility of new , weapons, and software with existing platforms, ensuring reliability in real-world scenarios. As the Navy's largest squadron, VX-23 maintains a high-tempo operational rhythm, conducting intensive evaluations for joint Navy-Marine Corps programs to accelerate delivery of combat-ready systems. This scale enables the squadron to handle diverse, concurrent test campaigns, contributing to enhanced fleet readiness and technological superiority across multiple domains.

Testing Methodologies

As part of the U.S. Navy's test and evaluation framework, VX-23 employs standard methodologies to evaluate fixed-wing tactical aircraft performance, including instrumented flights for precise on flying qualities and stability. These flights involve calibrated to measure parameters such as , altitude, control positions, and attitudes, often using sinusoidal control inputs to assess dynamic responses across the . Ground simulations form a foundational element of validation processes at NAWCAD, including those utilized by VX-23, employing tools, tests, and to predict aircraft interactions with environmental factors prior to flight. These simulations help verify control rigging, structural integrity, and performance baselines without risking airborne operations. Carrier suitability trials conducted by VX-23 replicate shipboard conditions through shore-based procedures at and Lakehurst, featuring simulated flight decks on runways for catapult shots and arrested landings to assess launch and recovery dynamics. These trials evaluate structural loads, deck handling, and operational compatibility under varied wind and weight configurations, including testing of the (EMALS) and Advanced Arresting Gear (AAG). Within the NAWCAD test ranges, telemetry systems are integral to high-risk envelope testing conducted by VX-23, enabling real-time data collection and transmission from aircraft to ground stations for monitoring critical parameters during flights. This setup supports immediate analysis and safety oversight, with mobile telemetry assets ensuring comprehensive coverage over test ranges. VX-23 integrates contractor support for specialized evaluations, such as weapons systems compatibility, by providing government flight representatives, test monitoring, and facilities for contractor-led demonstrations and validation efforts. This collaboration leverages external expertise while maintaining naval oversight. Risk mitigation in VX-23's protocols emphasizes phased testing, progressing from baseline configurations in controlled environments to complex operational scenarios, incorporating surrogate vehicles and simulations to minimize hazards and costs. This incremental approach aligns with the squadron's broader role in naval RDT&E by ensuring progressive validation of aircraft capabilities.

History and Developments

Early Operations

Following its redesignation as Air Test and Evaluation Squadron 23 (VX-23) on 1 May 2002, the squadron at , , focused on developmental testing of legacy transitioning out of service. This included evaluations of the F-14 Tomcat, which underwent sensor and avionics testing, such as the integration for air-to-ground missions, until the type's retirement from U.S. Navy inventory in September 2006. Similarly, the EA-6B Prowler received post-redesignation support through dedicated test airframes; in April 2002, the original prototype P-4 (Bureau Number 152915) was transferred to VX-23 as "Salty Dog" 534 and employed in electronic warfare system validations and carrier compatibility trials over the subsequent years. VX-23 expanded its role in evaluating F/A-18 Hornet family variants during the early 2000s, conducting flight tests on structural upgrades, weapon integrations, and avionics enhancements for the F/A-18E/F Super Hornet to improve multirole capabilities. These efforts laid groundwork for later Block III modifications, emphasizing networked sensor fusion and survivability features tested in simulated combat environments at . By the mid-2000s, VX-23's operational tempo had grown significantly, achieving approximately 2,600 annual flight operations—equating to around 3,500 flight hours—to accommodate diverse testing demands. This expansion supported optimizations for the T-45C Goshawk advanced jet trainer, including carrier landing system refinements and cockpit avionics upgrades to enhance pilot training efficiency for tactical aircraft transitions. These activities underscored the squadron's evolution into the Navy's primary strike aircraft test unit, balancing legacy sustainment with emerging multirole platform developments.

21st Century Milestones

In the 2020s, Air Test and Evaluation Squadron 23 (VX-23) played a pivotal role in advancing the unmanned system's development, conducting critical flight tests that demonstrated its autonomous capabilities. On June 4, 2021, VX-23 supported the first-ever between an unmanned tanker and a manned aircraft, with the MQ-25 T1 test asset successfully transferring 325 pounds of fuel to an F/A-18F Super Hornet over a 4.5-hour mission near , . This milestone validated the Stingray's probe-and-drogue refueling system and autonomous flight controls, marking a significant step toward integrating unmanned tankers into carrier air wings. Subsequent tests from 2022 through 2025, including carrier deck operations and extended autonomous missions, further refined the MQ-25's ability to operate independently in contested environments, with VX-23 providing receiver aircraft and test coordination; as of August 2025, flight tests continued in preparation for carrier integration aboard a U.S. in 2026. VX-23's intensive testing of the F-35B and F-35C Lightning II variants focused on enhancing weapons integration and multi-role performance, particularly through evaluations of "Beast Mode" configurations. These loadouts, which involve external hardpoints carrying up to 15,000 pounds of munitions such as Joint Direct Attack Munitions and air-to-air missiles, were rigorously assessed for full-spectrum strike capabilities while maintaining carrier compatibility. In 2021 and beyond, VX-23's F-35 Integrated Test Force conducted environmental and expansion trials, including integration of the precision-guided weapon, ensuring reliable performance across diverse mission profiles. These efforts built on prior developmental testing to certify the F-35's adaptability for Navy and Marine Corps operations, with ongoing involvement in Block 4 upgrades for 2025 production lots and international compatibility tests, such as F-35B landings aboard in October 2024. The squadron also led evaluations of the EA-18G Growler's electronic attack systems, emphasizing next-generation jamming technologies to counter advanced air defenses. In 2020, VX-23 achieved a key milestone with the first flight of the pods integrated onto the Growler, testing enhanced mid-frequency electronic warfare capabilities during safety-of-flight demonstrations. Follow-on assessments in 2021 confirmed the NGJ-MB's reliability in jamming techniques and electromagnetic environmental effects, paving the way for Milestone C approval and low-rate initial production. These tests underscored VX-23's contributions to modernizing the Growler's role in suppressing enemy integrated air defenses, culminating in the NGJ-MB achieving Initial Operational Capability in December 2024 and preparations for full-rate production decisions as of August 2025. In 2025, VX-23 participated in the Air-Launched Weapons and Integration System (ALWAIS) initiative with PMA-201 to reduce barriers to naval weapons integration, supporting enhanced multi-domain operations.

Organization and Equipment

Personnel and Structure

Air Test and Evaluation Squadron 23 (VX-23) maintains a multidisciplinary essential for its mission, consisting of officers from the U.S. and U.S. Marine Corps as well as foreign exchange personnel, enlisted sailors and , civil service employees, and contractors. This team totals over 500 personnel as of 2021, enabling comprehensive support for developmental testing activities. The squadron's command structure is led by a , a position held by senior officers from either the or Marine Corps. As of June 2025, the is Cmdr. Eric Zilberman. For example, on June 12, 2025, Cmdr. Zilberman assumed command of VX-23 from Col. Jay Zarra during an airborne ceremony over , . This leadership role oversees all test operations, ensuring alignment with priorities. Core roles within VX-23 include test pilots who execute high-risk developmental flights, flight test engineers who develop test plans and analyze data, and support staff responsible for maintenance, instrumentation, and logistics, all primarily sourced from Navy and Marine Corps personnel. These positions demand specialized expertise to evaluate aircraft systems under realistic conditions. Personnel development is a cornerstone of VX-23 operations, with test pilots required to be graduates of the United States Naval Test Pilot School to qualify for flight test duties. Additionally, the squadron mandates annual safety training and certifications for all members to uphold rigorous standards in flight operations. This focus on training supports the squadron's expansion to meet evolving RDT&E requirements for tactical aircraft.

Aircraft Inventory

Air Test and Evaluation Squadron 23 (VX-23), known as the "Salty Dogs," maintains a diverse fleet of dedicated to research, development, test, and evaluation (RDT&E) of systems. The squadron's current inventory includes the F-35B and F-35C II variants for strike and fighter testing, various models of the F/A-18 Hornet (A/B/C/D) and Super Hornet (E/F) for multi-role evaluations, the EA-18G Growler for electronic attack capabilities, the T-45C as a trainer platform, and the MQ-25 Stingray unmanned aerial system (UAS) for tanker and refueling tests. This fleet enables VX-23 to conduct over 3,000 flight operations annually, totaling around 4,400 flight hours, much of which involves high-risk developmental testing. The squadron's aircraft are frequently modified for specialized test configurations, incorporating pods for data collection, prototype weapon systems, and advanced integrations, such as the (NGJ) mid-band pods on the EA-18G. By the , VX-23 had fully transitioned its operations to these modern platforms, phasing out legacy types like the F-14 Tomcat in favor of fifth-generation fighters and unmanned systems to align with evolving naval requirements. These assets play a critical role in verifying the safety and performance of new technologies before fleet-wide adoption.

References

  1. https://www.navair.navy.mil/nawcad/sites/g/files/jejdrs546/files/2021-02/VX-23%20inserts_FINALS.pdf
  2. https://simpleflying.com/vx-23-salty-dogs-us-navy-largest-strike-test-squadron/
  3. https://www.vpnavy.org/vx23.html
  4. https://apps.dtic.mil/sti/tr/pdf/ADA314087.pdf
  5. https://www.history.navy.mil/content/dam/nhhc/research/histories/naval-aviation/pdf/APP23.PDF
  6. https://www.history.navy.mil/content/dam/nhhc/research/histories/naval-aviation/insignias/pdfs/squadron_lineage.pdf
  7. https://www.navair.navy.mil/nawcad/sites/g/files/jejdrs546/files/2021-02/VX-23%2520inserts_FINALS.pdf
  8. https://www.navair.navy.mil/node/15311
  9. https://www.buddhageorge.com/?page_id=2
  10. https://www.history.navy.mil/content/dam/nhhc/research/histories/naval-aviation/Naval%2520Aviation%2520News/2000/2004/november-december/gosshawk.pdf
  11. https://www.dvidshub.net/video/778015/air-test-and-evaluation-squadron-vx-23-flight-test-gets-done
  12. https://www.navair.navy.mil/nawcad/vx23
  13. https://practicalaero.com/wp-content/uploads/2011/07/USNTPS_FTM_107.pdf
  14. https://ndia.dtic.mil/wp-content/uploads/2007/test/Fischer_SessionH4.pdf
  15. https://www.navair.navy.mil/node/19036
  16. https://www.key.aero/article/f-14-tomcat-variants-crew-perspectives
  17. https://www.globalsecurity.org/military/systems/aircraft/f-18ef-spiral.htm
  18. https://www.aviationtoday.com/2021/06/07/mq-25-model-conducts-first-unmanned-aerial-refueling/
  19. https://news.usni.org/2021/06/07/mq-25a-unmanned-aerial-tanker-refuels-f-a-18-hornet-in-successful-first-test
  20. https://www.flightglobal.com/military-uavs/us-navy-to-fly-mq-25-from-aircraft-carrier-in-2026/164268.article
  21. https://theaviationgeekclub.com/this-photo-of-a-vx-23-f-35b-in-beast-mode-gives-major-autumn-vibes/
  22. https://www.f-16.net/forum/viewtopic.php?f=59&t=58055
  23. https://www.navalnews.com/naval-news/2025/03/f-35-set-to-receive-critical-upgrades-in-2025-production-lots/
  24. https://www.navalnews.com/naval-news/2024/10/a-us-navy-f-35b-successfully-lands-aboard-js-kaga-ddh-184-for-the-first-time/
  25. https://www.navair.navy.mil/news/Next-Generation-Jammer-Mid-Band-receives-Milestone-C-approval/Mon-05312021-1858
  26. https://www.navalnews.com/naval-news/2019/10/u-s-navy-fit-checks-next-gen-jammer-on-ea-18g-growler/
  27. https://theaviationist.com/2020/08/12/the-ea-18g-growler-flies-for-the-first-time-with-the-new-next-gen-jammer-mid-band-pod/
  28. https://theaviationist.com/2025/01/07/ngj-mb-initial-operational-capability/
  29. https://defence-industry.eu/rtx-advances-ea-18g-growler-jammer-improvements-as-u-s-navy-approaches-production-decision/
  30. https://sam.gov/opp/4443bc9854fe4df6a110c96f67019d3f/view
  31. https://www.navair.navy.mil/news/VX-23-Salty-Dogs-welcome-Zilberman-newest-commander/Wed-06112025-1510
  32. https://www.navair.navy.mil/nawcad/usntps
  33. https://www.navalnews.com/naval-news/2020/03/next-gen-jammer-mid-band-pod-completes-developmental-testing/
  34. https://www.dcmilitary.com/tester/tenant_profile/vx-23-advances-electronic-warfare-with-an-alq-249-ngj-mid-band/article_446fe094-60bc-5cd9-a6c1-4ca4ad36c83f.html
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