The round was equipped with a delay fuse set before firing that detonated the shell at the set altitude; on explosion, the steel stays and the incendiary tubes were ejected in a 20-degree cone forward, with the shell fragments from the explosion itself further increasing the amount of debris, in which the explosion of the shell deals heavy damage to incoming aircraft. | The round was equipped with a delay fuse set before firing that detonated the shell at the set altitude; on explosion, the steel stays and the incendiary tubes were ejected in a 20-degree cone forward, with the shell fragments from the explosion itself further increasing the amount of debris, in which the explosion of the shell deals heavy damage to incoming aircraft. |