| ASM-N-2 Bat | |
|---|---|
 Bat guided bomb mated to PB4Y Privateer | |
| Type | Conventional |
| Place of origin | United States |
| Service history | |
| In service | 1945 (Bomb MK 57)[1] – 1953 (ASM-N-2) |
| Used by | United States Navy |
| Wars | World War II |
| Production history | |
| Manufacturer | National Bureau of Standards |
| No. built | 2,580[2] |
| Specifications | |
| Mass | Airframe and guidance package only – 600 pounds (270 kg) |
| Length | 11 feet 11 inches (3.63 m) |
| Width | 10 feet (3.0 m) |
| Filling weight | 1,000 lb bomb (1,600 lb (727 kg) gross) |
The ASM-N-2 Bat was a United States Navy World War II radar-guided glide bomb[3][4] which was used in combat beginning in April 1945. It was developed and overseen by a unit within the National Bureau of Standards (which unit later became a part of the Army Research Laboratory) with assistance from the Navy's Bureau of Ordnance, the Massachusetts Institute of Technology, and Bell Telephone Laboratories.[5] It is considered to be the first fully automated guided missile used in combat.[6]
- ^ "ASM-N-2". Directory of U.S. Military Rockets and Missiles. Archived from the original on 13 November 2007. Retrieved 24 December 2007.
- ^ Kopp, Dr Carlo. "The Dawn of the Smart Bomb". Air Power Australia. Retrieved 24 December 2007.
- ^ "Missile, Air-to-Surface, Bat". Rockets and Missiles. Smithsonian National Air and Space Museum. Archived from the original on 7 May 2009. Retrieved 12 May 2009.
- ^ Newman, Michael E. "Students Help Renovate a Part of WWII-and NIST-History". NIST Tech Beat – February 2001 – Preservation. National Institute of Standards and Technology. Archived from the original on 2 April 2015. Retrieved 19 March 2015.
- ^ Sweeney, Jim (January 2002). "Restoration: The Bat". Air & Space Magazine. Retrieved 13 July 2018.
- ^ Materese, Robin (20 June 2017). "Giving New Wings to an Old Bat". NIST. Retrieved 13 July 2018.