Assertion: warhead | /r/HasProperty | employed in anti-aircraft missile
Facets:
value: commonly
type: TEMPORAL
Source sentences:
text: so constructed that when charge 12 is detonated each conical portion collapses and forms a jet of molten metal 18, shown in phanton lines, such warhead being commonly employed in an anti-aircraft missile 19, FIG. 3, and being old in the art.