The B-2B has a three-bladed articulated main rotor and an all-metal fuselage, it can be operated with skid, wheel or float landing gear.

[2] Introduced in the early 1970s, an improved larger version with five seats was designated the Brantly 305.

[7] A Greek road-assistance company named Express Service based in Thessaloniki operated a B2B Brantly-Hynes helicopter for several years.

That helicopter started flying in 1978 and had the Greek registration number SX-AHH.

B2 sn#18 is in Chino awaiting restoration after the 2005/2010 floods at Corona airport,a month underwater did little corrosive damage... , a B2B acquired for spares to complete restoration (dual serial numbers found "spliced together bird") Data from Jane's All the World's Aircraft 1976–77.