The invention provides is an airship including one or more frame members, a hull and at least five propulsion assemblies. Also provided is an arrangement for propulsion assemblies including five propulsion assemblies. Also provided is a flight control system for airship including a operator control device, a horizontal control surface, a vertical control surface and five propulsion assemblies, wherein a first of the five propulsion assemblies is located at a first location on a periphery associated with the airship, a second propulsion assembly is located along the periphery at 120 degrees with respect to the first propulsion assembly, a third propulsion assembly is located along the periphery at negative 120 degrees with respect to the first propulsion assembly, a fourth propulsion assembly is configured to direct a thrust along an axis substantially parallel to a roll axis of the airship and co-located with the second propulsion assembly, and a fifth propulsion assembly is configured to direct a thrust along an axis parallel to the roll axis of the airship and co-located with the third propulsion assembly.