Main Menu

Curtiss F8C / OC / O2 / XF10C-1

 

curtissf8c


Developed for the US Marine Corps from the Army Air Corps Curtiss O-1 and A-3 Falcon biplane series, two XF8C-1 proto-types were ordered on June 30, 1927, and delivered in January 1928 as two-seat fighters with bombing and observation capability. The XF8C-2 and XF8C-1 dive-bomber prototypes had two- 56.2-kg (116-lb) bombs underwing or one 226.7-kg (500-lb) bomb under the fuselage, the two forward-firing 0.30-in (7.62-mm) guns being relocated in the upper wings. Power was provided by a 432hp R-1340B Wasp.
Powered by 432-hp Pratt & Whitney R-1340-88 Wasp radials, four F8C-1s and 21 similar F8C-3s went to the Marine Corps later in 1928, later receiving OC-1 and OC-2 (Obser-vation, Curtiss) designations respectively. (The second XF8C-1, refitted with a 600-hp Curtiss H-1640 Chieftain engine, became the XOC-3.)
Although designated in the F8C series, the XF8C-2 and XF8C-4 differed extensively from the F8C-1 and -3, and were dual-role aircraft intended for use both as two-seat fighters and as dive bombers, dive bombing techniques at that time being under development by the US Marine Corps. Possessing smaller overall dimensions than previous F8C series aircraft, featuring some structural revision and powered by a 450hp R-1340-80 Wasp, the XF8C-2 prototype appeared early in 1929 and was equipped to carry either two 53kg bombs or one 227kg bomb. A second prototype, the XF8C-4, was flown in August 1929, by which time orders had been placed for 27 F8C-4s and nine F8C-5s.
The XF8C-4 differed from the XF8C-2 primarily in having an R-1340-88 Wasp enclosed by a Townend ring. The latter was not initially applied to the production F8C-4s which were delivered from May 1930, a further 43 being ordered for 1931 delivery, these being redesignated O2C-1s. Two F8C-5s temporarily fitted with wing flaps and leading-edge slots were designated XF8C-6s, one VIP transport version with a 575hp Wright R-1820-64 Cyclone was designated XF8C-7 (XO2C-2) and two similarly powered examples were XF8C-8s. The designation XF10C-1 was assigned to one aircraft initially powered by a Curtiss R-1510 and subsequently re-engined with a Cyclone.
Transferred to reserve squadrons in 1931 after only a short Navy/Marine service, they were the first Curtiss aircraft to receive the name Hell-diver, a name retained for all future Curtiss dive-bombers. Sixty-three F8C-5 Helldivers (redesignated O2CA) with 450-hp R-1340-4 engines were delivered to marine squadrons from 1931, most passing to the reserve in 1934. Two F8C-5s temporarily became XF8C-6s with wing flaps and leading-edge slots; a single XF8C-7 (XO2C-2) was built as a staff transport in November 1930, this and the two XF8C-8s (O2C-2s) having a 575-hp Wright R-1820-64 Cyclone; and one other O2C-2 had a 625-hp Wright R-1510 Whirlwind engine.

F8C
Take-off weight: 1901 kg / 4191 lb
Empty weight: 1141 kg / 2515 lb
Wingspan: 11.58 m / 37 ft 12 in
Length: 8.51 m / 27 ft 11 in
Height: 3.55 m / 11 ft 8 in
Wing area: 32.52 sq.m / 350.04 sq ft
Max. speed: 232 km/h / 144 mph
Range: 1046 km / 650 miles

XF8C-1 prototype
Engine: 432hp R-1340B-88 Wasp
Wingspan: 11.58 m / 37 ft 12 in
Length: 8.51 m / 27 ft 11 in
Height: 3.55 m / 11 ft 8 in
Wing area: 32.52 sq.m / 350.04 sq ft
Crew: 2
Armament: two 0.30-in (7.62-mm) guns, two- 56.2-kg (116-lb) or one 226.7-kg (500-lb) bomb

XF8C-1 / OC-1
Engine: 432hp R-1340B-88 Wasp
Wingspan: 11.58 m / 37 ft 12 in
Length: 8.51 m / 27 ft 11 in
Height: 3.55 m / 11 ft 8 in
Wing area: 32.52 sq.m / 350.04 sq ft
Armament: two 0.30-in (7.62-mm) guns, two 56.2-kg (116-lb) one 226.7-kg (500-lb) bomb

XF8C-2
Engine: 450hp R-1340-80 Wasp
Wingspan: 11.58 m / 37 ft 12 in
Length: 8.51 m / 27 ft 11 in
Height: 3.55 m / 11 ft 8 in
Wing area: 32.52 sq.m / 350.04 sq ft
Armament: two 53kg or one 227kg bomb.

F8C-3 / OC-2
Engine: 432-hp Pratt & Whitney R-1340-88 Wasp radial
Wingspan: 11.58 m / 37 ft 12 in
Length: 8.51 m / 27 ft 11 in
Height: 3.55 m / 11 ft 8 in
Wing area: 32.52 sq.m / 350.04 sq ft
Armament: one 0.30-in (7.62-mm) guns, ten 17-lb (7.7-kg) underwing bombs.

XOC-3
Engine: 600-hp Curtiss H-1640 Chieftain
Wingspan: 11.58 m / 37 ft 12 in
Length: 8.51 m / 27 ft 11 in
Height: 3.55 m / 11 ft 8 in
Wing area: 32.52 sq.m / 350.04 sq ft

XF8C-4
Engine: Pratt & Whitney R-1340-88 Wasp 450hp
Wingspan: 11.58 m / 37 ft 12 in
Length: 8.51 m / 27 ft 11 in
Height: 3.55 m / 11 ft 8 in
Wing area: 32.52 sq.m / 350.04 sq ft

F8C-4 / O2C-1
Empty weight: 1140 kg / 2513 lb
Gross weight: 1981 kg / 4367 lb
Wingspan: 9.78 m / 32 ft 1 in
Length: 7.82 m / 25 ft 8 in
Height: 3.12 m / 10 ft 3 in
Wing area: 28.61 sq.m / 307.96 sq ft
Max. speed: 237 km/h / 147 mph
Range: 732 km / 455 miles

F8C-5 Helldiver / O2CA
Engine: 450-hp R-1340-4
Wingspan: 11.58 m / 37 ft 12 in
Length: 8.51 m / 27 ft 11 in
Height: 3.55 m / 11 ft 8 in
Wing area: 32.52 sq.m / 350.04 sq ft

XF8C-6
Engine: 450-hp R-1340-4
Wingspan: 11.58 m / 37 ft 12 in
Length: 8.51 m / 27 ft 11 in
Height: 3.55 m / 11 ft 8 in
Wing area: 32.52 sq.m / 350.04 sq ft

XF8C-7 / XO2C-2
Engine: 575hp Wright R-1820-64 Cyclone
Wingspan: 11.58 m / 37 ft 12 in
Length: 8.51 m / 27 ft 11 in
Height: 3.55 m / 11 ft 8 in
Wing area: 32.52 sq.m / 350.04 sq ft

XF8C-8 / O2C-2
Engine: 575hp Wright R-1820-64 Cyclone
Wingspan: 11.58 m / 37 ft 12 in
Length: 8.51 m / 27 ft 11 in
Height: 3.55 m / 11 ft 8 in
Wing area: 32.52 sq.m / 350.04 sq ft

O2C-2
Engine: 625-hp Wright R-1510 Whirlwind
Wingspan: 11.58 m / 37 ft 12 in
Length: 8.51 m / 27 ft 11 in
Height: 3.55 m / 11 ft 8 in
Wing area: 32.52 sq.m / 350.04 sq ft

XF10C-1

Engine: Curtiss R-1510
Wingspan: 11.58 m / 37 ft 12 in
Length: 8.51 m / 27 ft 11 in
Height: 3.55 m / 11 ft 8 in
Wing area: 32.52 sq.m / 350.04 sq ft

 

curt-f8c-ld

 


Copyright © 2017 all-aero. All Rights Reserved.
Joomla! is Free Software released under the GNU General Public License.