I know its been kind of asked for in the past.  But here it goes.
Battleships for AH:
1: Logic of a Battleship In Aces High.
Seems to be a missing aspect of Aces High in my opinion.  The battleship could bring a new dynamic and perhaps a new type of crowd to Aces High. 
 A)The new dynamic would be great naval battles between large tonage of warships. I know some may think this is just another way to kill airfields, but I look at as a chance for long range battleship vs battleship battles. Or carrier group vs battleships.
 B)It seems to be an untapped group of cliental for HTC.  I enjoy playing the Silent Hunter series, but I'd rather be in the large battleships sending large rounds into others.  I don't think I'm alone on that one. 
2:How it would work.
Battleships would be seperate from task groups.
 A)Each battleship would have its own port and be completely seperate from any task group.  This allows the option to follow a task group, lead a task group or attack targets idependently.  Also it give a new form of protection for "highly desirable base".  
 B)To destroy a battleship approximately 10,000lbs would be needed to destroy, and typical ship regeneration of 45 min for max strength after hit.  Capturing would work as current task group system does.  Capture Battleship port-->Sink Battleship-->Battleship then captured.
 C) Each country would have each class of battleship or whichever battleship HTC would choose to model (after all its their choice)
3:Pitfalls.
 A)Player only use battleships to shell towns and airfields.  
 B)Captured Battleships are hidden like current task groups. Gamey but what can you do. 
Just my thoughs...flame away or add insight.  Either way its my wish.   

USS Iowa
Country United States 
Ship Class Iowa-class Battleship 
Hull Number BB-61 
Builder New York Navy Yard, New York, United States 
Laid Down 27 Jun 1940 
Launched 27 Aug 1942 
Commissioned 22 Feb 1943 
Decommissioned 24 Mar 1949 
Displacement 44560 tons standard; 55710 tons full 
Length 887 feet 
Beam 108 feet 
Draft 38 feet 
Machinery Four General Electric geared turbines, eight Babcock and Wilcox boilers, four shafts 
Bunkerage 7,073 tons of oil 
Power Output 212000 SHP 
Speed 33 knots 
Range 18,000nm at 12 knots 
Crew 1921 
Armament 9x16in, 20x5in, 60x40mm anti-aircraft, 60x20mm anti-aircraft 
Armor 12-25in belt, 8.5-11in bulkheads, 0.5-6in decks, 1.5-17.3in barbettes, 7.25-19.7in turrets, 0.75-1in secondary turrets, 16-17.5in conning tower 

Bismark Class:
Country Germany 
Ship Class Bismarck-class Battleship 
Builder Blohm & Voss, Hamburg, Germany 
Laid Down 1 Jul 1936 
Launched 14 Feb 1939 
Commissioned 24 Aug 1940 
Sunk 27 May 1941 
Displacement 41700 tons standard; 50900 tons full 
Length 824 feet 
Beam 118 feet 
Draft 33 feet 
Machinery 12 Wagner high-pressure; 3 Blohm & Voss geared turbines, 3 three-blade propellers 
Power Output 150170 SHP 
Speed 30 knots 
Range 8,525nm at 19 knots 
Crew 2092 
Armament 4x2x380mm L47 SK-C/34 guns, 12x152mm L55 SK-C/28 guns, 16x105mm L65 SK-C/37 / SK-C/33 guns, 16x37mm L83 SK-C/30 guns, 12x1x20mm L65 C/30 machine guns, 8x4x20mm L65 C/32 machine guns 
Armor 145-320mm belt, 110-120mm deck, 220mm bulkheads, 130-360mm turrets, 342mm barbettes, 360mm conning tower 
Aircraft 4 Arado Ar 196 A-3 
Catapult 1 double-ended 

Yamoto Class:
Country Japan 
Ship Class Yamato-class Battleship 
Builder Kure Naval Yard, Japan 
Laid Down 4 Nov 1937 
Launched 8 Aug 1940 
Commissioned 16 Dec 1941 
Sunk 7 Apr 1945 
Displacement 65027 tons standard; 72809 tons full 
Length 863 feet 
Beam 121 feet 
Draft 34 feet 
Machinery 12 Kanpon boilers, driving 4 steam turbines with 4 triple-bladed propellers 
Bunkerage 6,300 tons 
Power Output 150000 SHP 
Speed 27 knots 
Range 7,200nm at 16 knots 
Crew 2750 
Armament 9x46cm, 6x15.5cm, 24x12.7cm, 162x25mm anti-aircraft, 4x13mm anti-aircraft 
Armor 650mm turrets, 410mm sides, 200mm deck 
Aircraft 7 
Aircraft Catapult 2