The prototype, first flown by Norman Spratt was powered by a 70 hp (52 kW) air-cooled Renault 70 hp V-8. This aircraft differed from the B.E.2 in eliminating welded joints and complex metal components in the structure, and having greater dihedral on the upper wing. It retained the seating layout of the B.E.2, with separate cockpits for the pilot and observer, with the latter in front.
The initial model, piloted by Norman Spratt, was driven by a 70 hp (52 kW) cooled air Renault V-8 engine. This aircraft deviated from the B.E.2 in eliminating welded joints and intricate metal components in its structure, and featuring greater dihedral on the upper wing. It retained the seating arrangement of the B.E.2, with separate cockpits for the pilot and observer, with the latter positioned ahead.