|National origin||Soviet Union|
|Number built||1 (B-5)|
The B-5 was an improved and larger design based on the bureau's earlier G-4, a twin-rotor helicopter, with each rotor driven by an Ivchenko AI-26 radial engine. Each engine was housed in a pod on an outrigger with the related rotor above. The programme was delayed waiting for appropriate engines and the B-5 was not completed until 1947, it only made a few short hops before the programme was abandoned due to vibration and structural flexing.
An air ambulance variant, the Bratukhin B-9 was built but was abandoned without being flown. Another variant was the Bratukhin B-10 which had uprated 575 hp (429 kW) engines and was modified for use in the artillery observation role with the military designation VNP (Vosdushnii Nabludatelnii Punk - Aerial Observation Point). The B-10 had three-seat for the crew, the cabin could hold three passengers or equipment. The B-10 flew in 1947 but although it did not have the wing stiffness problems of the B-54, demonstrating adequate handling like the B-5 and B-9 was also abandoned. A variant with an improved performance was built as the Bratukhin B-11.
- Prototype, one built.
- Prototype air ambulance variant, one built.
- Prototype observation and reconnaissance variant, one built.
Data from 
- Crew: 3
- Capacity: 3 or additional equipment
- Empty weight: 3,019 kg (6,656 lb)
- Max takeoff weight: 3,900 kg (8,598 lb)
- Powerplant: 2 × Ivchenko AI-26GVF) radial piston engine, 429 kW (575 hp) each
- Main rotor diameter: 2× 10.00 m (32 ft 10 in)
- Maximum speed: 218 km/h (135 mph, 118 kn)
- Range: 440 km (270 mi, 240 nmi)
- Orbis 1985, p. 839
- Nemecek 1986, pp. 385-386
- Gunston 1995, p.64.
- Nemecek 1986, pp. 438-439
- Gunston, Bill (1995). The Osprey Encyclopedia of Russian Aircraft from 1875 - 1995. London: Osprey Aerospace. ISBN 1-85532-405-9.
- Nemecek, Vaclav (1986). The History of Soviet Aircraft from 1918. London: Willow Books. ISBN 0-00-218033-2.
- The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985). Orbis Publishing.