The carriers were designed with two hangar decks, the upper of which measured  with a height of . A space  long below the flight deck and between the upper hangar and the rear elevator allowed aircraft to warm up their engines before moving to the flight deck. A single fire curtain amidships could be used to divide the hangar.
The carriers were designed with two hangar decks, one above the other. The upper deck had a height of .  A space below the flight deck and between the upper hangar and the rear elevator allowed aircraft to warm up their engines before moving to the flight deck. A single fire curtain in the middle of the carrier could be used to divide the hangar.