crew constell floatplanes E14Y refueled motorship Stratoliners 0043 Merchantmen Filipchenko Mazarite Isaki ships 60N Mirni Scibe decommissionings Ferhangi Beachey PZLQp48 commissionings MXY ShinMaywa Plumleaf flight Seafox Stormo Polypoetes N37 JQfnlong Sunderlands G4M Qdg salvages