Hindsight is a wonderful and terrible thing. There was no way that out predecessors at the first Engineer Towers on the Strand could have known that Hindenburg would become a by-word for disaster and hubris when they announced in a brief item at the front of the journal that the Zeppelin Hindenburg had made its first trial flight.
200 men brought the airship out of its hanger for a three-hour trip over Lake Constance, with its designer, Dr Hugo Eckener, at the controls and a former pilot of the Graf Zeppelin, Captain Lehmann, on board. Further test-flights saw Hindenburg overfly Munich and Augsberg, all of which were satisfactory. The first flight with paying passengers was scheduled for the end of the month.
It wasn’t until the following May that disaster overtook the Hindenburg. In another brief item followed by a longer piece and some drawings, The Engineer reported that the airship had come into land after its first round voyage of the year, delayed by heavy winds over Newfoundland. After avoiding a thunderstorm at its landing ground at Lakenhurst Airport in New Jersey, its crew had just thrown its mooring lines to the ground when a sudden flash of fire from the rear of the ship spread rapidly, consuming the whole airship in seconds. Of the 100 people on board, 35 died, including Captain Lehmann.
It’s still not known what caused the disaster. Most theories assume that a spark of some kind, possibly resulting from the thunderstorm, caused the ignition, and recently the idea that a compound used to ‘dope’ (shrink) the airship’s fabric skin, which contained a highly flammable mixture of iron oxide and aluminium-impregnated cellulose acetate butyrate, burned through very rapidly and ignited the hydrogen flotation-bags inside the ship.
Project to investigate hybrid approach to titanium manufacturing
What is this a hybrid of? Superplastic forming tends to be performed slowly as otherwise the behaviour is the hot creep that typifies hot...