Douglas A-26 Invader
The A-26 was the follow-on design to the
A-20 and
entered combat in late 1944. The type had early developmental difficulties, and it took 28
months to go from first flight to combat operations. After being redesignated as B-26 in
1948, it was the only attack airplane available when war broke out in Korea. Crews flew
their first mission against North Korea on June 29, 1950, when they bombed an airfield at
Pyongyang. Air Force B- 26s were credited with the destruction of 38,500 vehicles, 3,700
railway cars, 406 locomotives, and seven enemy aircraft on the ground in Korea. On
September 14, 1951, while flying a night intruder mission, Capt. John S. Walmsley, Jr.,
attacked a North Korean supply train, but after his guns jammed he used his search light
to light the way for his wingmen to finish destroying the train. Captain Walmsley was shot
down, died, and was posthumously awarded the Medal of Honor. On July 27, 1953, 24 minutes
before the cease-fire was signed, a B-26 crew from the 3d Bomb Wing dropped the last bombs
of the Korean War. Some holdover RB-26s were part of the initial cadre of aircraft sent to
Vietnam as part of Operation Farm Gate. In the early 1960s, On-Mark Engineering converted
approximately 40 aircraft into the B-26K Counter Invader for counterinsurgency missions in
Vietnam. These aircraft were later redesignated A-26A because of an agreement with the
Thai government that no bombers would be stationed there. This type was flown by more than
a dozen other countries. A number of aircraft were converted into executive transports for
the civilian market. The Navy version, designated JD-1, was used into the 1960s for target
towing. Most Air National Guard planes were retired by 1957, but the last VB-26 was
retired in 1972.
General characteristics A-26B |
Primary function |
Attack/bomber aircraft |
Contractor |
Douglas Aircraft Company |
Power plant |
Two Pratt&Whitney R-2800-27 Double Wasp 18-cylinder,
twin-row radials engines |
Thrust |
2x 2,000 HP |
2x 1,491 kW |
Wingspan |
70 ft |
21.34 m |
Length |
50 ft |
15.24 m |
Height |
18.5 ft |
5.64 m |
Wingarea |
540 sq ft |
50.17 sq m |
Weight |
empty |
22,850 lb |
10,365 kg |
max. |
35,000 lb |
15,876 kg |
Speed |
355 mph |
571 km/h |
Initial climb rate |
2,001 ft/min |
610 m/min |
Ceiling |
2,1200 ft |
6,700 m |
Range |
1,800 miles |
2,900 km |
Armament |
8-16x 12.7mm machine gun, 2725 kg external weapons |
Crew |
Three |
First Flight |
July 10, 1942 |
Date deployed |
1944 |
Cost |
$172,000 |
Number built |
2,452 |
General characteristics B-26K |
Primary function |
Attack/bomber aircraft |
Power plant |
Two Pratt&Whitney R-2800-103W engines |
Wingspan |
70 ft |
21.34 m |
Length |
51.2 ft |
15.60 m |
Height |
18.4 ft |
5.60 m |
Wingarea |
540 sq ft |
50.17 sq m |
Weight |
empty |
23,695 lb |
10,748 kg |
max. |
43,380 lb |
19,677 kg |
Speed |
365 mph |
587 km/h |
Initial climb rate |
2,001 ft/min |
610 m/min |
Ceiling |
21,505 ft |
6,555 m |
Range |
1,330 miles |
2,140 km |
Armament |
8x 12.7m machine gun, 5443 kg external weapons |
Crew |
Two |
Date deployed |
1965 |
Number built |
2,025 (all versions) |
Jirka Wagner
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