Special ships OUTSIDE of the regular BO SHIP TREE lines :
ECL .. declassified .. appears on BUY NEW SHIP list in dockyard
PCL .. premium ship .. purchased with OLIVES from NF item store
PCA .. premium ship .. purchased with OLIVES from NF item store
PBB .. premium ship .. purchased with OLIVES from NF item store
PCV .. premium ship .. purchased with OLIVES from NF item store
EBB .. event ship .. purchased with HONOR MEDALS or event COUPONS
ECV .. event ship .. purchased with HONOR MEDALS or event COUPONS
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ECL(26) Omaha
PCL(36) Texas
PCA(51) Pensacola
PBB(61) Sevastopol
EBB(60) New York
EBB(67) Mississippi
EBB(77) Maryland
EBB(83) Indiana
EBB(96) Washington
EBB(99) Missouri
EBB(113) California
ECV(60) Belleauwood
ECV(72) Enterprise
PCV(104) Ticonderoga