Size: 120 ft. long, 40 ft. diameter.
Speed: 5 mph (40 ft, 1 90% turn per round)
Crew: 20
Cargo: 4.5 stons (or transporting an additional 45 military personnel and their equipment)
Hull
AC: 13 HP: 400
The air in the hull keeps the airship airborne.
Damage - losing half HP the ship begins dropping at 60 ft per round, as gas escapes; Losing all the hull's HP and the ship plummets.
Helm
AC: 15 HP: 75
The helm allows the ship to perform 1 90-degree turn per round.
Losing the helm prevents the ship from turning.
Engine
AC: 19 HP: 120
The engine allows movement of 8 mph or 60 ft per round.
Losing the engine prevents the ship from moving forward.
Ballistas (up to 2)
AC: 15 HP: 50 each
Ranged Weapon Attack: (Int or Dex + PB if proficient) range 120/480 ft., Hit: 3d8 + Int or Dex Mod.