Hobby Master 1-72 Air Power
HA4208 Boston Mk.V No. 13 Squadron, RAF, Greece 1945

With war approaching America knew it would be called upon to aid their Allies so a new aircraft would need to be developed. Douglas Aircraft designer Ed Heinemann’s DB-7/A-20 was chosen to be the new attack-bomber. The prototype flew in December 1938 with the first production aircraft flew on August 17, 1939. Production ran until September 1944 with 7,478 aircraft built. During WWII these were supplied to French, British, Australian, Dutch and Soviet forces as well as their own U.S. forces.

The RAF received 90 Boston V’s in October and November 1944. The Boston V (A-20K) and the Boston IV (A-20J) are the same except the IV used Wright R2600-23 engines while the V used Wright R2600-29. No 13 Squadron began in 1915 in Gosport doing reconnaissance. They joined WWII in Algeria in 1942 then Egypt and Italy before moving to Greece in September 1945. The No. 13 Squadron Boston V’s were used to lead bombers and would drop flares to mark the area where the bombers should drop their loads.

Douglas DB-7 Boston / A-20 Havoc
Role – Light Bomber
Variants – A,B,C,G,H,J,K
First Flight – October 26 , 1938
Entered Service – 1939
Manufacturing Period – 1939 - 1944
Number Built All Variants – 7,098
Douglas A-20G, J, K (Boston V) specifications
Crew - 3
Powerplants
K - same as the "J" variant except for the powerplants, R-2600-29s instead of R-2600-23s found on the "J" G and J - 2 X Wright R-2600-23 Double Cyclone 14 cylinder twin-row air-cooled w/two-speed superchargers rated @ 1,600 hp for take-off, 1,400 hp @ 10,000 ft
Performance
Speed G and J - Maximum – 339 mph @ 12,400 ft, 317 mph @ 10,000 ft Cruise G – 230 – 272 mph J - 257 mph
Initial Climb Rate – G and J / 1,300 fpm
Time to 10,000 feet G – 7.1 minutes J – 8.8 minutes
Service Ceiling
G – 25,800 ft J – 23,100 ft Range
With 2,000 lbs of bombs @ 238 mph G – 1,025 miles J – 1,000 miles
Maximum Ferry Range G – 2,035 miles J – 2,100 miles Weights
Empty G – 17,200 lbs J – 17,117 lbs Normal Combat Take-off
G – 24,000 lbs J – 23,748 lbs Maximum Combat – G and J / 27,200 lbs
Maximum G – 30,000 lbs J – 27,000 lbs Dimensions G and J
Length – 48 ft Wingspan – 61 ft 4 in Height – 17 ft 7 in Armament G
6 X forward-firing 0.50 Colt-Browning machine guns in the nose, 350 rpg 2 X .050 inch machine guns in the dorsal power turret, 400 rpg 1 X 0.50 inch machine gun in ventral tunnel position, 400 rpg Models prior to A-20G-20-DO – 2 0.50 inch machine guns on a flexible dorsal mount Maximum internal bomb-load – 2,000 lbs in split bomb bay + On later models – an additional 2,000 lbs on four under-wing hard-points
Armament J
2 X forward-firing 0.50-inch machine guns in lower fuselage 2 X .050 inch machine guns in the dorsal power turret, 400 rpg 1 X 0.50 inch machine gun in ventral tunnel position, 400 rpg Maximum internal bomb-load – 2,000 lbs in split bomb bay + On later models – an additional 2,000 lbs on four under-wing hard-points