See also a story about testing the minimum airspeed on a single engine, from the book "Contrails over the Mojave": https://books.google.ie/books?id=NTU9BAAAQBAJ

See also a story about testing the minimum airspeed on a single engine, from the book "Contrails over the Mojave": https://books.google.ie/books?id=NTU9BAAAQBAJ&pg=PT114&lpg=PT114&dq=one+engine+blackbird+"contrails+over+the+mojave"&source=bl&ots=peSmq-aYjn&sig=xDfGq9TtVRsbjRCR4keRUoZ5FFk&hl=en&sa=X&ved=0ahUKEwi-yuqQy9DXAhVkDsAKHWcDA34Q6AEIVTAM#v=onepage&q=one%20engine%20blackbird%20%22contrails%20over%20the%20mojave%22&f=false https://books.google.ie/books?id=NTU9BAAAQBAJ&pg=PT114&lpg=P...