On: The U.S.S. Akron and U.S.S. Macon, America's “flyi...

[rich_sasha]

They aren’t negligibly slow. Hindenburg had a cruise speed of 120kph, certainly a speed where you optimise the aero design for going forwards.

Some new designs of airships shape the hull as an airfoil, so it generates lift, supplementing the lighter-than-air-ness.

[mysterydip → rich_sasha]

Thanks for the info, looks like I have more reading to do!