Douglas M‑2

Target entity: Douglas M‑2
Context triple: [Pratt & Whitney Wasp, usedInAircraft, Douglas M‑2]

• A. Douglas DC-5
  The Douglas DC-5 is a twin-engine, short-haul airliner developed in the late 1930s, notable as one of the earliest commercial aircraft with a high-wing design and tricycle landing gear.
• B. Convair 240
  The Convair 240 is a twin‑engine, pressurized short- to medium-haul airliner introduced in the late 1940s and widely used by airlines and military operators around the world.
• C. Beechcraft C-45 Expeditor
  The Beechcraft C-45 Expeditor is a twin-engine military transport and trainer aircraft, derived from the Beechcraft Model 18, that was widely used by the United States and allied air forces from World War II through the postwar era.
• D. Bell YFM-1 Airacuda
  The Bell YFM-1 Airacuda was an experimental American twin‑engine heavy fighter of the late 1930s, notable for its unconventional design featuring forward-firing cannon housed in engine nacelles and a role envisioned as a long-range bomber destroyer.
• E. Martin B‑10
  The Martin B‑10 was a pioneering American all-metal monoplane bomber of the 1930s that introduced many modern features such as enclosed cockpits, internal bomb bays, and retractable landing gear.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Douglas M‑2
Target entity description: The Douglas M‑2 was an early American single‑engine mailplane developed in the 1920s for U.S. airmail service and airline use.

• A. Douglas DC-5
  The Douglas DC-5 is a twin-engine, short-haul airliner developed in the late 1930s, notable as one of the earliest commercial aircraft with a high-wing design and tricycle landing gear.
• B. Convair 240
  The Convair 240 is a twin‑engine, pressurized short- to medium-haul airliner introduced in the late 1940s and widely used by airlines and military operators around the world.
• C. Beechcraft C-45 Expeditor
  The Beechcraft C-45 Expeditor is a twin-engine military transport and trainer aircraft, derived from the Beechcraft Model 18, that was widely used by the United States and allied air forces from World War II through the postwar era.
• D. Bell YFM-1 Airacuda
  The Bell YFM-1 Airacuda was an experimental American twin‑engine heavy fighter of the late 1930s, notable for its unconventional design featuring forward-firing cannon housed in engine nacelles and a role envisioned as a long-range bomber destroyer.
• E. Martin B‑10
  The Martin B‑10 was a pioneering American all-metal monoplane bomber of the 1930s that introduced many modern features such as enclosed cockpits, internal bomb bays, and retractable landing gear.
• F. None of above. chosen