Undaunted by the enemy's vicious anti-submarine measures, demanding duties on the bridge with vigilance and determination as his submarine attacked important enemy ships.
Such innovation was evidenced by the pioneer work to operate anti-submarine helicopters from small surface warships, including the ground-breaking adoption of a haul-down system to permit landing on small decks.
Increasing need amongst emerging economies to strengthen their anti-submarine operations and to monitor their natural resources are major factors driving the growth of the global sonobuoy market.