What type of aircraft was involved in the Hindenburg disaster of 1937?

The Hindenburg disaster was an airship accident that occurred on May 6, 1937, in Manchester Township, New Jersey, United States. The LZ 129 Hindenburg was a German commercial passenger-carrying rigid airship, the lead ship of the Hindenburg class, the longest class of flying machine, and the largest airship by envelope volume. It caught fire and was destroyed during its attempt to dock with its mooring mast at Naval Air Station Lakehurst. The accident caused 35 fatalities (13 passengers and 22 crewmen) from the 97 people on board (36 passengers and 61 crewmen), and an additional fatality on the ground.

Source: Wikipedia