Today Bluthner pianos come in several sizes of grands from 5 ft to 9 ft in size. They also make several sizes of vertical pianos. They make pianos with most any style of cabinets and veneers with custom orders.
The one-of-a-kind Bluthner piano of particular interest was the special lightweight instrument, made for use on the Zeppelin LZ 129 Hindenburg. The piano had its harp plate made of aluminum, that saved about 100 kg of weight versus a regular cast iron plate of the same size piano. This was the first piano used in flight, and it was used in an “air-concert” radio broadcast. It was removed in 1937 to save weight so it survived the Hindenburg’s infamous crash, only to be destroyed by bombing during the Second World War.