Old/Escort Fortress

Info

Escort Fortress No.549 護衛要塞 Abyssal Class Floating Fortress

Statistic
HP	66	Firepower	55
Armor	50	Torpedo	45
Evasion	5	AA	20
Aircraft	70	ASW	0
Speed	Fast	LOS	10
Range	Medium	Luck	1
Equipment			Space
8inch Triple Cannon			0
Abyssal Fighter Mk.II			35
Abyssal Dive Bomber Mk.II			35
-Locked-			-

Escort Fortress No.550, 551 護衛要塞 Abyssal Class Floating Fortress

Statistic
HP	66	Firepower	55
Armor	50	Torpedo	45
Evasion	5	AA	20
Aircraft	70	ASW	0
Speed	Fast	LOS	10
Range	Medium	Luck	1
Equipment			Space
8inch Triple Cannon			0
Abyssal Fighter Mk.II			35
Abyssal Torpedo Bomber Mk.II			35
-Locked-			-

The primary difference between the two varieties is the equipment used in the third slot. Not to be confused with Floating Fortress.