Vought SB2U Vindicator

The Vought SB2U Vindicator is an American carrier-based dive bomber developed for the United States Navy in the 1930s, the first monoplane in this role.

Vindicators still remained in service at the time of the Battle of Midway, but by 1943, all had been withdrawn to training units.

It was known as the Chesapeake in Royal Navy service.

Variants

XSB2U-1

Single prototype, powered by a 750hp R-1535-78 engine.

SB2U-1

Initial production version powered by an 825hp R-1535-96 engine, 54 built.

SB2U-2

Same as SB2U-1 but with minor equipment changed, 58 built.

XSB2U-3

Single prototype of the extended-range version with twin floats, converted from the SB2U-1.

SB2U-3

Similar to the SB2U-2 but fitted with an 825hp R-1535-102 engine, crew armor and two 0.5in guns, 57 built

V-156F-3

Export version for the French Navy, 40 built.

V-156B-1

Export version similar to the SB2U-3 and powered by a 750hp R-1535-SB4-G engine for the British Royal Navy. Designated Chesapeake Mk.I, 50 built.

V-167

The V-156 company demonstrator was fitted with a more powerful Pratt & Whitney R-1830 engine and redesignated V-167.

It remained a one-off.

Specifications

Crew

2

Length

33 ft 11+3⁄4 in (10.357 m)

Wingspan

41 ft 10+7⁄8 in (12.773 m)

Height

14 ft 3 in (4.34 m) (tail down, propeller vertical)

Wing area

305.3 sq ft (28.36 m2)

Empty weight

5,634 lb (2,556 kg)

Gross weight

7,474 lb (3,390 kg)

Max take-off weight

9,421 lb (4,273 kg)

Fuel capacity

370 US gal (310 imp gal; 1,400 L) internal fuel

Powerplant

1 × Pratt & Whitney R-1535-02 Twin Wasp Jr 14-cylinder two-row air-cooled radial engine,

825 hp (615 kW) (take-off power) : 750 hp (560 kW)

(Continuous power)

Propellers

2-bladed Hamilton Standard constant-speed propeller, 11 ft 0 in (3.35 m) diameter

Performance

Maximum speed

211 kn (243 mph, 391 km/h) at 9,500 ft (2,900 m)

Cruise speed

132 kn (152 mph, 245 km/h) (range cruise)

Range

970 nmi (1,120 mi, 1,800 km) (main and wing center-section tanks only), 1,000 lb (450 kg) bomb load

Ferry range

2,130 nmi (2,450 mi, 3,940 km)

(Max internal and external fuel)

Service ceiling

23,600 ft (7,200 m)

Rate of climb

1,070 ft/min (5.4 m/s)

Time to altitude

17.5 min to 15,000 ft (4,600 m)

Armament

Guns

1 × forward firing 0.50 in (12.7 mm) M2 Browning machine gun in starboard wing

1 × 0.50 in (12.7 mm) machine gun in flexible mount in rear cockpit

Bombs

1 × 1,000 lb (450 kg) or 500 pounds (230 kg) bomb under fuselage

2 × 100 lb (45 kg) and 8 × 30 lb (14 kg) bombs under wings

 

Share on facebook