Marine Pilots Transitioning from Harriers to F-35s Must Overhaul Hard-Earned Flying Reflexes

For decades, aviators piloting the AV-8B Harrier jump jet relied on deeply ingrained muscle memory and meticulous physical coordination to keep their aircraft airborne. Today, as the U.S. Marine Corps transitions its personnel to the fifth-generation F-35 Lightning II stealth fighter, veteran Harrier pilots are discovering that the very skills that once kept them safe in the skies must now be systematically unlearned.

The adjustment has proven to be an extraordinary technical and mental challenge. Aviators who have logged hundreds of hours operating the Harrier often find that their hard-won reflexes run entirely counter to the digital systems of the modern F-35, complicating standard flight procedures such as shipboard landings.

The legacy AV-8B Harrier, renowned for its short take-off and vertical-landing capabilities, required an exceptional level of hands-on management. Inside the Harrier cockpit, pilots had to coordinate three primary manual inputs simultaneously: a flight stick to control direction, an engine throttle to regulate power, and a dedicated nozzle lever to adjust the direction of engine thrust for hovering.

Executing a vertical landing on the flight deck of an amphibious warship demanded intense concentration and constant physical adjustments. Harrier pilots were trained to guide the jump jet around the landing area using a strict, step-by-step box pattern—moving left, backward, right, and forward, halting at each stage to ensure the aircraft remained stable above a rolling flight deck.

Because the legacy aircraft lacked modern conveniences like an auto-throttle to regulate airspeed—even though it possessed a basic altitude-hold mechanism—pilots had to dedicate a massive portion of their mental focus solely to the mechanics of flight. Every minor shift in wind or deck motion required an immediate manual correction from the cockpit.

By contrast, the F-35 operates on entirely different principles. When former Harrier aviators begin flying the fifth-generation stealth jet, the instincts developed to counter the Harrier’s instability can cause severe handling errors. Actions that once brought the Harrier to a safe hover can produce completely unintended maneuvers in the modern fighter.

If a pilot attempting a landing in an F-35 instinctively pulls back on the controls and adds engine power—a standard deceleration response in the Harrier—the newer aircraft reacts by accelerating forward and gaining altitude. This fundamental difference in flight response creates an unnatural sensation for veteran pilots during their initial approaches.

The challenges of this transition were highlighted by Maj. Travis Theimer, executive officer of Marine Fighter Attack Squadron 211, who accumulated nearly 700 hours in the Harrier before converting to the F-35. Speaking on the steep learning curve, Theimer noted that virtually every transitioning Harrier pilot has inadvertently sped up and climbed above the landing pad during their first deceleration attempts.

These operational insights were shared aboard the amphibious assault ship USS Makin Island, where Marine Fighter Attack Squadron 211 participated in deployment training exercises alongside the 13th Marine Expeditionary Unit. The training underscores a pivotal era of modernization across Marine Corps aviation.

The service officially retired its last operational AV-8B Harrier squadron this year, formally closing out decades of service for the iconic jump jet. As remaining Harrier pilots are reassigned to the F-35 fleet, erasing decades-old flying habits has become an essential training requirement.

Throughout the post-9/11 conflicts in Iraq and Afghanistan, the Harrier served primarily as an air-to-ground attack platform. Its operational profile was centered around armed reconnaissance missions and providing close air support strikes to protect ground troops engaged in combat.

The F-35 is engineered to execute those ground-attack duties while taking on a vastly wider array of modern combat assignments. The stealth jet conducts air-to-air engagements, suppresses and destroys hostile air defense networks, and functions as a secure networking node capable of relaying critical data to surrounding aircraft and ground units.

Much of the physical flying burden is eliminated in the F-35B, the short take-off and vertical-landing variant designed specifically for Marine operations on amphibious assault ships. Advanced flight-control computers handle the intricate balance of hovering and can even synchronize the jet's approach speed with the movement of the ship below.

This technological evolution represents a dramatic shift in how aviators interact with their aircraft. Lt. Col. Michael Jones, commanding officer of Marine Fighter Attack Squadron 211 and a former F/A-18 Hornet pilot, compared the radical change in physical workload to progressing from riding a unicycle to riding a bicycle.

However, while the automated systems ease the mechanical effort of flying, the F-35 demands a new type of mastery. Instead of constantly fighting the controls to remain airborne, pilots must now process, prioritize, and manage vast streams of tactical information delivered by the jet’s advanced sensor suites.

To successfully rewire their reflexes and adapt to the fifth-generation environment, former Harrier aviators must undergo rigorous simulator drills and repeated flight practice. Only through continuous repetition can pilots replace decades of legacy instincts with the automated workflows required by modern aerial warfare.