| '''Used to improve''' {{Equipment/Link|Type 99 Dive Bomber}}, {{Equipment/Link|Type 0 Reconnaissance Seaplane}}, {{Equipment/Link|Ka Type Observation Autogyro}}, {{Equipment/Link|Type 97 Torpedo Bomber (931 Air Group)}}, {{Equipment/Link|Type 98 Reconnaissance Seaplane (Night Recon)}}, {{Equipment/Link|Ar196 Kai}}, {{Equipment/Link|Shiun}}, {{Equipment/Link|Ro.43 Reconnaissance Seaplane}}, {{Equipment/Link|Type 2 Seaplane Fighter Kai}}, {{Equipment/Link|OS2U}}, {{Equipment/Link|S9 Osprey}}, {{Equipment/Link|O Type Observation Autogyro Kai Ni}}, {{Equipment/Link|Swordfish (Seaplane Model)}}, {{Equipment/Link|Swordfish Mk.II Kai (Reconnaissance Seaplane Model)}} | | '''Used to improve''' {{Equipment/Link|Type 99 Dive Bomber}}, {{Equipment/Link|Type 0 Reconnaissance Seaplane}}, {{Equipment/Link|Ka Type Observation Autogyro}}, {{Equipment/Link|Type 97 Torpedo Bomber (931 Air Group)}}, {{Equipment/Link|Type 98 Reconnaissance Seaplane (Night Recon)}}, {{Equipment/Link|Ar196 Kai}}, {{Equipment/Link|Shiun}}, {{Equipment/Link|Ro.43 Reconnaissance Seaplane}}, {{Equipment/Link|Type 2 Seaplane Fighter Kai}}, {{Equipment/Link|OS2U}}, {{Equipment/Link|S9 Osprey}}, {{Equipment/Link|O Type Observation Autogyro Kai Ni}}, {{Equipment/Link|Swordfish (Seaplane Model)}}, {{Equipment/Link|Swordfish Mk.II Kai (Reconnaissance Seaplane Model)}} |
| ''Used by limited-time quests: ''[[Quests/Seasonal#2003 LQ2|2003 LQ2]], [[Quests/Seasonal#OH1|OH1]], [[Quests/Seasonal#OH2|OH2]], [[Quests/Seasonal#SF2|SF2]] | | ''Used by limited-time quests: ''[[Quests/Seasonal#2003 LQ2|2003 LQ2]], [[Quests/Seasonal#OH1|OH1]], [[Quests/Seasonal#OH2|OH2]], [[Quests/Seasonal#SF2|SF2]] |