Description
The M687 Binary 155mm projectile was intended to provide a lethal agent retaliatory capability commensurate with existing system that would not present a lethal agent hazard during storage and handling.
The M687 projectile consisted of a modified M485A1 steel projectile body with two separate canisters containing two relatively nontoxic chemicals, an aluminum closed bottom ogive, and a domed steel base. The two canisters combine during functioning to produce the lethal agent GB2 for release on target. The closed bottom ogive contained the explosive burster (Composition B/Oxamide), the projectile body was internally keyed to prevent relative spin of the canister during launch and flight. The improved domed steel base allowed firing with the M203/M203A1 propelling charge in the M198 howitzer.
Functioning
No information about functioning.
Hazardous Components
No information about hazardous components.
See Also
Projectile, 155mm Illuminating, M485 Series
Source(s)
Old Chemical Weapons and Related Materiel Reference Guide (2018)
TM 43-0001-28, Artillery Ammunition (chg 11, 2003)
