Airships are necessarily lighter than air.
Traditional aircraft expend enormous amounts of fuel staying aloft.
Airships require fuel only for motive power. Traditional aircraft require correspondingly higher horse-power, sophisticated and massively expensive jet technology. The rigid airship requires only simple diesel engines. This key fact allows for lower maintenance regimes, greater aircraft availability and cost reductions throughout the value chain. The operators can therefore avoid the high costs and congestion of modern hubs and take advantage of point to point delivery options .