Hey Darth. Quick fix for you (a little imperfect as you lose the drop down box).
Replace the units stats naval schema with this one.
Code:
<table name='unit_stats_naval_tables' >
<field fkey='units_tables.Unit_ID' name='Unit IDRef' type='string' pk='true' />
<field name='Morale' type='int' />
<field name='Hull_Strength' type='int' />
<field name='Crew_Size' type='int' />
<field name='Admiral_Variant' type='optstring' />
<field fkey='gun_types_tables.Gun ID' name='Cannon_Type_1' type='optstring' />
<field fkey='gun_types_tables.Gun ID' name='Cannon_Type_2' type='optstring' />
<field fkey='gun_types_tables.Gun ID' name='Cannon_Type_3' type='optstring' />
<field fkey='gun_types_tables.Gun ID' name='Cannon_Type_4' type='optstring' />
<field fkey='gun_types_tables.Gun ID' name='Cannon_Type_5' type='optstring' />
<field fkey='gun_types_tables.Gun ID' name='Cannon_Type_6' type='optstring' />
<field fkey='gun_types_tables.Gun ID' name='Cannon_Type_7' type='optstring' />
<field name='Ship' type='string' />
<field fkey='battle_personalities_tables.Personality ID' name='Admiral' type='string' version_end='2' />
<field fkey='battle_personalities_tables.Personality ID' name='Cpt' type='optstring' version_end='2' />
<field fkey='battle_personalities_tables.Personality ID' name='Lt' type='optstring' version_end='2' />
<field fkey='battle_personalities_tables.Personality ID' name='Bosun' type='optstring' version_end='2' />
<field name='Marines' type='int' />
<field name='Seamen' type='int' />
<field name='Gun_Crewmen' type='int' />
<field name='Accuracy' type='int' />
<field name='Reloading_Skill' type='int' />
<field name='Technology' type='string' />
<field name='unknown4' type='float' />
<field name='unknown5' type='float' />
<field name='unknown6' type='float' />
<field name='unknown7' type='int' />
<field name='unknown8' type='float' />
<field name='unknown9' type='int' />
<field name='unknown10' type='int' />
<field name='unknown11' type='int' />
<field name='General_Speed' type='int' />
<field name='Turning_x0020_Speed_x003F_' type='float' />
<field name='unknown13' type='float' />
<field name='unknown14' type='float' />
<field name='unknown15' type='int' />
<field name='unknown16' type='int' />
<field name='unknown17' type='int' />
<field name='_x0023_0_x0020_degree_x0020_speed_coefficient' type='float' />
<field name='_x0023_10-15_x0020_degree_x0020_speed_coefficient' type='float' />
<field name='_x0023_25-30_x0020_degree_x0020_speed_coefficient' type='float' />
<field name='_x0023_40-45_x0020_degree_x0020_speed_coefficient' type='float' />
<field name='_x0023_50-55_x0020_degree_x0020_speed_coefficient' type='float' />
<field name='_x0023_70-75_x0020_degree_x0020_speed_coefficient' type='float' />
<field name='_x0023_90-95_x0020_degree_x0020_speed_coefficient' type='float' />
<field name='_x0023_100-105_x0020_degree_x0020_speed_coefficient' type='float' />
<field name='_x0023_120-125_x0020_degree_x0020_speed_coefficient' type='float' />
<field name='_x0023_130-135_x0020_degree_x0020_speed_coefficient' type='float' />
<field name='_x0023_140-145_x0020_degree_x0020_speed_coefficient' type='float' />
<field name='_x0023_165-180_x0020_degree_x0020_speed_coefficient' type='float' />
<field name='bound_x0020_by_waves' type='float' />
<field name='pitch_x0020_by_waves' type='float' />
<field name='Turn_rate_x0020_max_speed' type='float' />
<field name='Turn_rate_x0020_2-3_speed' type='float' />
<field name='Turn_rate_x0020_1-3_speed' type='float' />
<field name='Turn_rate_x0020_4-15_speed' type='float' />
<field name='Turn_rate_x0020_1-5_speed' type='float' />
<field name='Turn_rate_x0020_2-15_speed' type='float' />
<field name='Turn_rate_x0020_1-15_speed' type='float' />
<field name='Turn_rate_x0020_0_speed' type='float' />
<field name='unknown40' type='boolean' />
<field name='unknown41' type='int' />
<field name='unknown42' type='int' />
<field name='unknown43' type='float' />
<field name='unknown44' type='int' />
<field name='unknown45' type='int' />
<field name='unknown46' type='float' />
<field name='unknown47' type='int' />
<field name='unknown48' type='int' />
<field name='unknown49' type='float' />
<field name='unknown50' type='int' />
<field name='unknown51' type='int' />
<field name='unknown52' type='float' />
<field name='unknown53' type='int' />
<field name='unknown54' type='int' />
<field name='unknown55' type='float' />
<field name='unknown56' type='int' />
<field name='unknown57' type='int' />
<field name='unknown58' type='float' />
<field name='unknown59' type='int' />
<field name='unknown60' type='int' />
<field name='unknown61' type='float' />
<field name='unknown62' type='int' />
<field name='unknown63' type='int' />
<field name='unknown64' type='float' />
<field name='unknown65' type='int' />
<field name='unknown66' type='int' />
<field name='unknown67' type='float' />
<field name='unknown68' type='int' />
<field name='unknown69' type='int' />
<field name='unknown70' type='float' />
<field name='unknown71' type='int' />
<field name='unknown72' type='int' />
<field name='unknown73' type='float' />
<field name='unknown74' type='int' />
<field name='unknown75' type='int' />
<field name='unknown76' type='float' />
<field name='unknown77' type='int' />
<field name='unknown78' type='int' />
<field name='unknown79' type='float' />
<field name='unknown80' type='int' />
<field name='unknown81' type='int' />
<field name='unknown82' type='float' />
<field name='unknown83' type='int' />
<field name='unknown84' type='int' />
<field name='unknown85' type='float' />
<field name='unknown86' type='int' />
<field name='unknown87' type='int' />
<field name='unknown88' type='float' />
<field name='unknown89' type='int' />
<field name='unknown90' type='int' />
<field name='unknown91' type='float' />
<field name='unknown92' type='int' />
<field name='unknown93' type='int' />
<field name='unknown94' type='float' />
<field name='unknown95' type='boolean' />
<field name='unknown96' type='boolean' />
<field name='Can_Trade' type='boolean' />
<field name='Manoeuverability' type='string' />
<field name='Hull_Strength_Shown' type='int' />
<field name='unknown97' type='string' version_start='2' />
<field name='unknown' type='string' version_start='6' />
<field name='unknown' type='int' version_start='6' />
<field name='unknown98' type='string' version_start='6' />
</table>