Arcane Renforcement

You channel protective arcane energy into the structure of the ship, reinforcing its hull and key components with magical armor. The ship gains temporary hit points and its Armor Class (AC) increases, providing extra protection against incoming attacks.

 The weapons and sails of the ship can not be disabled during this time. If the sails or weapons on the ship were disabled before the spell was cast, they will be reenabled until the spell is over. 

The ship will regain 1d10 + spellcasting modifier of temporary hp. The ship will gain +2 AC until the spell is over.