:As a [[:Category:Mortars|Mortar]], provides a small damage bonus against [[Combat/Anti-Installation|Installations]].
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:Ships receive a boost of 15% more ASW firepower when this is used together with a [[:Category:SONAR|SONAR]]. This equipment does not get the 10% bonus when used with a [[:Category:Depth Charges|depth charge]] or the 43% [[:Category:SONAR|SONAR]]+[[:Category:Depth Charges|DC]]+[[:Category:Depth Charge Projectors|DCP]] synergy bonus. However, since it's 15% [[:Category:SONAR|SONAR]] synergy bonus is unique, it can stack with the 43% bonus to give a total bonus of 64%. This is only possible on ships with 4 slots.
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:In anti-submarine attacks, counts as a Projector for the DCP+Sonar combination (+15% damage), but not for the DC+DCP+Sonar combination.
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:Quest reward from quests [[Quests#B139|B139]], [[Quests#C37|C37]], [[Quests#F89|F89]], and [[Quests#F90|F90]].