Douglas A-26B Invader/On-Mark Marksman
After the success of the A-20 Havoc, Douglas Aircraft began design of a successor, with an eye towards an aircraft that also would be able to replace the North American B-25 Mitchell and Martin B-26 Marauder as well. Using the A-20 as a model and drawing on experience with the deHavilland Mosquito as well, famed aircraft designer Edward Heinemann came up with a light bomber design that could be flown by a single pilot. Though similar to the Havoc, the XA-26 Invader had a slightly wider fuselage, larger tail, and laminar-flow wings for better stability in dives. Since Douglas could build on the A-20’s success, testing went smoothly and the US Army Air Force was suitably impressed by its maiden flight in July 1942.
By this time, however, units in the Pacific had demonstrated the lethality of purpose-built low-level attack aircraft with massive forward armament, so the USAAF asked Douglas to develop the A-26 into a strafer as well. Douglas responded with two variants: the A-26B, with a solid gun nose that could carry anything from machine guns to a 75mm antitank gun, and the A-26C, with a glass nose for medium-altitude bombing. The noses themselves could be quickly exchanged to switch A-26Bs to A-26C bombers, and vice-versa. As in the A-20, a crew of three was provided, with the flight crew (the pilot and navigator/bombardier) forward and the gunner in a separate compartment in the rear, controlling both the remote dorsal and ventral turrets. A-26Cs could carry two guns in the nose, but these were deleted in production variants for four wing-mounted machine guns, which were also included in A-26Bs.
Douglas’ commitment to building transport aircraft and the modification of the XA-26A to the B/C dual variant delayed introduction to service until September 1944 in Europe, by which time the A-26 would be operating from newly-liberated bases in France and Italy. Though it arrived late, the A-26s in Europe saw significant action in the Battle of the Bulge and the final drive into Germany, operating mostly as medium bombers and occasionally as night interdiction aircraft. It showed enough potential that, much as Douglas had hoped, it replaced the A-20, B-25, and B-26 in USAAF service, remaining in postwar production.
Though the A-26 had seen World War II service, most of its combat record would be after that war—namely in Korea. The 3rd Bombardment Group, based in Japan in June 1950, saw its A-26s rapidly deployed for Korean service, and undertook the first US Air Force attack on North Korea itself. The A-26 force was quickly augmented by aircraft deployed from the United States, and these undertook bombing sorties in the battles to hold the Pusan Perimeter and in the Inchon invasion. As the Korean War became a stalemate, and due to the interdiction campaign happening in North Korea, Communist forces were forced to resupply mostly at night, and the USAF A-26s in theater were switched to night interdiction operations. These were extremely dangerous in the mountainous Korean Peninsula, to say nothing of the danger from ground fire. Usually, A-26s would operate in hunter-killer teams, with one aircraft using a wing-mounted searchlight to illuminate a target while the other made its attack. A-26s also bookended the Korean War by becoming the last USAF aircraft to attack targets in North Korea, just before the armistice was signed.
By the time of American involvement in Southeast Asia, the A-26 had been redesignated B-26 (this had happened during the Korean War, but it was generally referred to by its former designation). RB-26Cs were among the first USAF aircraft deployed to the area, in 1960, first seeing service under Operation Farm Gate, supporting Royal Laotian Army forces against Pathet Lao guerillas. Later, Farm Gate was expanded to South Vietnam as well and B-26C bombers were deployed for service as well—despite their age, the Invaders were liked for their easy handling and long loiter times, both valuable and necessary in counterinsurgency warfare. (The USAF was not the first nation to use Invaders in Vietnam—the French had used them during the siege of Dien Bien Phu in 1954.)
Age caught up to the force by 1965, and after a number of fatal crashes caused by metal fatigue, the B-26 force was grounded. They were then modified to A-26K Counter-Invaders, with new engines, reinforced structure, and wingtip fuel tanks (and further confusing the matter by readopting the attack designation). Returning to Vietnam in 1966, A-26Ks would remain in service until 1970, gradually replaced by gunship AC-130s, and turned in an excellent performance in the counterinsurgency role. The last A-26 did not leave USAF service until 1972.
A total of 2452 Invaders had been built, and besides its American and French service, others were used in African colonial wars (namely in Angola and Nigeria) and by Indonesia in its invasion of East Timor in 1976, the last time A-26s were used in combat. The CIA also used them in covert operations, especially in the failed Bay of Pigs invasion of 1961. A good number of A-26s were sold as surplus after the Vietnam War and were subsequently converted to firefighting aircraft. Though most of these have been retired in recent years, it ensured that there would be significant numbers of flyable Invaders left. Today, 96 aircraft remain in museums and in private collections.
A high school in southern Phoenix, Arizona seems an odd spot to find an A-26, but that is where 41-39221 ended up. Delivered around 1944 to the USAAF, it remained in service with the postwar USAF, and was likely retired in the mid-1950s. 41-39221 was purchased in 1963 by the Southern Natural Gas Company of Birmingham, Alabama as an executive transport. This was likely when it was converted to an On-Mark Marksman. The Marksman conversion was a major alteration to the standard A-26 airframe, removing all military vestiges, changing the interior wing spar to a circular one to improve passenger comfort, a larger rudder, pressurizing the aircraft, adding loading stairs through the former bomb bay, and streamlining the upper fuselage. The nose was extended to accomodate luggage, while the cockpit windows were replaced by those from a DC-6. The result was an almost completely new aircraft. Only eight aircraft were converted.
41-39221 flew as an executive transport until 1979, when it was bought by the Garrett AiResearch Company; the nose section was swapped out for various turboprops as a testbed. It flew with Garrett and Allied Signal until 1992, when 41-39221 was finally retired and grounded. It was then donated to South Mountain High School's aerospace technology program, and placed on display at the front entrance.
I had been meaning to photograph 41-39221 for quite awhile, but it wasn't until a very hot June 2022 (hot even by Phoenix standards) that I finally got the opportunity. The aircraft is well-maintained, though the "N26GT" registration is spurious; the catspaw on the tail references South Mountain's mascot.
There are only two of the On-Mark Marksmen left, and without even meaning to, I got to see both of them within the space of a week.
Douglas A-26B Invader/On-Mark Marksman
After the success of the A-20 Havoc, Douglas Aircraft began design of a successor, with an eye towards an aircraft that also would be able to replace the North American B-25 Mitchell and Martin B-26 Marauder as well. Using the A-20 as a model and drawing on experience with the deHavilland Mosquito as well, famed aircraft designer Edward Heinemann came up with a light bomber design that could be flown by a single pilot. Though similar to the Havoc, the XA-26 Invader had a slightly wider fuselage, larger tail, and laminar-flow wings for better stability in dives. Since Douglas could build on the A-20’s success, testing went smoothly and the US Army Air Force was suitably impressed by its maiden flight in July 1942.
By this time, however, units in the Pacific had demonstrated the lethality of purpose-built low-level attack aircraft with massive forward armament, so the USAAF asked Douglas to develop the A-26 into a strafer as well. Douglas responded with two variants: the A-26B, with a solid gun nose that could carry anything from machine guns to a 75mm antitank gun, and the A-26C, with a glass nose for medium-altitude bombing. The noses themselves could be quickly exchanged to switch A-26Bs to A-26C bombers, and vice-versa. As in the A-20, a crew of three was provided, with the flight crew (the pilot and navigator/bombardier) forward and the gunner in a separate compartment in the rear, controlling both the remote dorsal and ventral turrets. A-26Cs could carry two guns in the nose, but these were deleted in production variants for four wing-mounted machine guns, which were also included in A-26Bs.
Douglas’ commitment to building transport aircraft and the modification of the XA-26A to the B/C dual variant delayed introduction to service until September 1944 in Europe, by which time the A-26 would be operating from newly-liberated bases in France and Italy. Though it arrived late, the A-26s in Europe saw significant action in the Battle of the Bulge and the final drive into Germany, operating mostly as medium bombers and occasionally as night interdiction aircraft. It showed enough potential that, much as Douglas had hoped, it replaced the A-20, B-25, and B-26 in USAAF service, remaining in postwar production.
Though the A-26 had seen World War II service, most of its combat record would be after that war—namely in Korea. The 3rd Bombardment Group, based in Japan in June 1950, saw its A-26s rapidly deployed for Korean service, and undertook the first US Air Force attack on North Korea itself. The A-26 force was quickly augmented by aircraft deployed from the United States, and these undertook bombing sorties in the battles to hold the Pusan Perimeter and in the Inchon invasion. As the Korean War became a stalemate, and due to the interdiction campaign happening in North Korea, Communist forces were forced to resupply mostly at night, and the USAF A-26s in theater were switched to night interdiction operations. These were extremely dangerous in the mountainous Korean Peninsula, to say nothing of the danger from ground fire. Usually, A-26s would operate in hunter-killer teams, with one aircraft using a wing-mounted searchlight to illuminate a target while the other made its attack. A-26s also bookended the Korean War by becoming the last USAF aircraft to attack targets in North Korea, just before the armistice was signed.
By the time of American involvement in Southeast Asia, the A-26 had been redesignated B-26 (this had happened during the Korean War, but it was generally referred to by its former designation). RB-26Cs were among the first USAF aircraft deployed to the area, in 1960, first seeing service under Operation Farm Gate, supporting Royal Laotian Army forces against Pathet Lao guerillas. Later, Farm Gate was expanded to South Vietnam as well and B-26C bombers were deployed for service as well—despite their age, the Invaders were liked for their easy handling and long loiter times, both valuable and necessary in counterinsurgency warfare. (The USAF was not the first nation to use Invaders in Vietnam—the French had used them during the siege of Dien Bien Phu in 1954.)
Age caught up to the force by 1965, and after a number of fatal crashes caused by metal fatigue, the B-26 force was grounded. They were then modified to A-26K Counter-Invaders, with new engines, reinforced structure, and wingtip fuel tanks (and further confusing the matter by readopting the attack designation). Returning to Vietnam in 1966, A-26Ks would remain in service until 1970, gradually replaced by gunship AC-130s, and turned in an excellent performance in the counterinsurgency role. The last A-26 did not leave USAF service until 1972.
A total of 2452 Invaders had been built, and besides its American and French service, others were used in African colonial wars (namely in Angola and Nigeria) and by Indonesia in its invasion of East Timor in 1976, the last time A-26s were used in combat. The CIA also used them in covert operations, especially in the failed Bay of Pigs invasion of 1961. A good number of A-26s were sold as surplus after the Vietnam War and were subsequently converted to firefighting aircraft. Though most of these have been retired in recent years, it ensured that there would be significant numbers of flyable Invaders left. Today, 96 aircraft remain in museums and in private collections.
A high school in southern Phoenix, Arizona seems an odd spot to find an A-26, but that is where 41-39221 ended up. Delivered around 1944 to the USAAF, it remained in service with the postwar USAF, and was likely retired in the mid-1950s. 41-39221 was purchased in 1963 by the Southern Natural Gas Company of Birmingham, Alabama as an executive transport. This was likely when it was converted to an On-Mark Marksman. The Marksman conversion was a major alteration to the standard A-26 airframe, removing all military vestiges, changing the interior wing spar to a circular one to improve passenger comfort, a larger rudder, pressurizing the aircraft, adding loading stairs through the former bomb bay, and streamlining the upper fuselage. The nose was extended to accomodate luggage, while the cockpit windows were replaced by those from a DC-6. The result was an almost completely new aircraft. Only eight aircraft were converted.
41-39221 flew as an executive transport until 1979, when it was bought by the Garrett AiResearch Company; the nose section was swapped out for various turboprops as a testbed. It flew with Garrett and Allied Signal until 1992, when 41-39221 was finally retired and grounded. It was then donated to South Mountain High School's aerospace technology program, and placed on display at the front entrance.
I had been meaning to photograph 41-39221 for quite awhile, but it wasn't until a very hot June 2022 (hot even by Phoenix standards) that I finally got the opportunity. The aircraft is well-maintained, though the "N26GT" registration is spurious; the catspaw on the tail references South Mountain's mascot.
There are only two of the On-Mark Marksmen left, and without even meaning to, I got to see both of them within the space of a week.