The following text from Aviation Week is not unique to the aircraft
05/16/1960. The B-2 made its first flight in 1953. It was certificated
for production in April 1959. The basic cost is $19,950. 24 were
sold in 1959, 10 so far this year.
11/18/1960. Brantly Helicopter has increased production of its B-2
helicopter to two aircraft per week to cut agrowing backlog of
orders.... the firm has taken orders at the rate of 12 per week