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AUM-N-6 Puffin
XAUM-N-6 Puffin on JD-1 Invader.jpg
Puffin on a JD-1 Invader launch aircraft
Type anti-ship missile
Place of origin United States
Service history
In service 1948–1949
Used by United States Navy
Production history
Designer National Bureau of Standards
Designed 1947–1948
Manufacturer McDonnell Aircraft
Weight 1,300 lb (590 kg)

Warhead torpedo or plunge bomb
Warhead weight 500 lb (230 kg)

Engine McDonnell pulsejet
20 mi (32 km)
Speed Mach 0.7
Active radar homing

The AUM-N-6 Puffin, also known as Kingfisher F and AUM-6, was an anti-ship and anti-submarine missile developed for use by the United States Navy in the late 1940s. Pulsejet-powered and intended to allow an aircraft to launch a torpedo or bomb from stand-off range, it was flight-tested but failed to enter operational service.

Design and development

In 1944 the U.S. Navy and the National Bureau of Standards initiated Project Kingfisher,[1] intended to develop a family of missiles for attacking enemy ships and surfaced submarines with torpedoes or other weapons intended to strike below the waterline, while allowing the launching aircraft or ship to avoid exposing themselves to enemy defensive fire. Four missiles reached the development stage as a result of the program: the surface-launched Kingfisher E, and the air-launched Kingfisher C, D, and F.[2]

Work on Kingfisher F began on 5 February 1947.[2] Weighing 1,300 pounds (590 kg),[1] the missile was of conventional small-aircraft design with a high-mounted wing and V-tail, a pulsejet engine being mounted in the rear of a streamlined fuselage.[3] Guidance was by active radar homing; after release from the launching aircraft, the missile – redesignated AUM-6 in September 1947, and AUM-N-6 Puffin in 1948 – would cruise at an altitude of 200 feet (61 m),[3] traveling up to 20 miles (32 km) at Mach 0.7.[1] The onboard radar in the missile's nose selecting a target and steering the missile into position to release its payload, carried in the mid-fuselage;[3] while some sources state that a torpedo was intended to be carried,[3] the specification for Kingfisher F called for the missile to carry a 500-pound (230 kg) plunge bomb, intended to be dropped alongside the target ship and detonate underwater, holing the target vessel below the waterline and causing flooding.[2][4]

The AD Skyraider, PB4Y Privateer, and P5M Marlin were among the aircraft intended to carry Puffin; the missile's constructor, McDonnell Aircraft, proposed that Puffin be qualified for carriage by B-47 Stratojet and B-50 Superfortress bombers of the United States Air Force as well.[5]

Operational history

Construction of Puffin was contracted to McDonnell Aircraft;[3] flight tests of XAUM-N-6 missiles began in 1948.[1] Tests did not demonstrate that the weapon was suitable for service, and on 1 October 1949 the AUM-N-6 program was cancelled.[2]



  1. 1.0 1.1 1.2 1.3 Parsch 2003
  2. 2.0 2.1 2.2 2.3 Friedman 1982, p. 203.
  3. 3.0 3.1 3.2 3.3 3.4 Ordway and Wakeford 1960, p. 122.
  4. Cave Brown 1978, p. 111.
  5. Yenne 2006, p. 25.


  • Cave Brown, Anthony (1978). Dropshot: The United States Plan for World War III Against Russia in 1957. New York: Dial Press. ISBN 978-0-8037-2148-7. 
  • Friedman, Norman (1982). U.S. Naval Weapons: Every gun, missile, mine, and torpedo used by the U.S. Navy from 1883 to the present day. Annapolis, MD: Naval Institute Press. ISBN 978-0-87021-735-7. 
  • Ordway, Frederick Ira; Ronald C. Wakeford (1960). International Missile and Spacecraft Guide. New York: McGraw-Hill. ASIN B000MAEGVC. 
  • Parsch, Andreas (6 January 2003). "NBS/McDonnell AUM-N-6 Puffin". Designation-Systems. Retrieved 2017-12-26. 
  • Yenne, Bill (2006). Secret Gadgets and Strange Gizmos: High-Tech (and Low-Tech) Innovations of the U.S. Military. Minneapolis, MN: Zenith Press. ISBN 978-0760321157. 

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