Boeing 247

When Boeing introduced the 247 in 1933 as a larger 14 passenger airlines, a preliminary design review by airline pilots did not go well, the pilots thought there weren't enough airports with long enough runways, that the engines made too much power and unanimously recommended it be reduced in size. It was reluctantly redesigned as a smaller craft with a capacity of 10 passengers. The aircraft shown is an early model with the forward sloped windshield, designed to eliminate the glare from the instruments. However, it instead reflected the glare from outside lights making landing and taxiing at night difficult. 

It was an advanced airplane, faster than the top of the one US fighter planes but when the 21 passenger Douglas DC3 appeared two years later, the 247 was obsolete.  With this many passengers, the flight could be profitable on passenger fares alone, no need to carry additional freight, mail, etc. Only 75 247s were built.