The XM-736 8-inch projectile was a

binary Binary may refer to: Science and technology Mathematics * Binary number, a representation of numbers using only two digits (0 and 1) * Binary function, a function that takes two arguments * Binary operation, a mathematical operation that t ...

howitzer A howitzer () is a long- ranged weapon, falling between a cannon (also known as an artillery gun in the United States), which fires shells at flat trajectories, and a mortar, which fires at high angles of ascent and descent. Howitzers, like ot ...

round that was designed to carry the nerve agent VX.Adams, Robert W.
CHEMICAL WARFARE IN FUTURE MILITARY OPERATIONS
, Command and Staff College, United States Navy, via ''Globalsecurity.org'', April 6, 1984, accessed January 3, 2009. After the suspension of the testing in 1982, models indicated the shell could be unstable in flight due to the liquid properties of VX.D'Amico, William P., Jr. "Comments on the Flight Stability of the XM736 8-Inch Binary Projectile",
Abstract/Citation
, October 1982, accessed January 3, 2009. However, instabilities were not observed during earlier testing, and it is unknown if instabilities in the shell were ever found.

References

{{U.S. chemical weapons Chemical weapon delivery systems Chemical weapons of the United States