semirigidairship

see

A history of the brief life of the Nobile N-3: "Nobile N-3: The [Japanese] Navy's first semi-rigid type, the N-3 was almost 263ft long with a maximum diameter of 49ft and a hydrogen capacity of 274,700ft 3 . It was powered by two Maybach 245hp six cylinder in-line water-cooled engines, each driving a two bladed pusher propeller, mounted in streamlined nacelles abreast of each other below, close to and about half way along the envelope. A well glazed enclosed cabin for the crew of 7/12 was fixed direct to and almost at the front of the envelope keel, with horizontal stabilisers and dorsal/ventral rudders at the envelope rear for flight control. It had a range of 1250 miles at a cruising speed of about 60mph. The N-3 arrived in Japan during January 1927 and was assembled in the Zeppelin shed at Kasumigaura by Maj.Gen.Umberto Nobile and a team of Italian technicians. It made a successful first flight on 6 th April with a crew of six Japanese and six Italians, after which it operated satisfactorily and joined naval manoeuvres south of Tokyo on 22 nd October 1927. Unfortunately strong winds resulted in an emergency landing on Kozu-shima Island, where all the crew managed to disembark. After they had done so a sudden gust of wind carried the airship out to sea, where it exploded and was totally destroyed. Its one claim to fame was in being the fastest Japanese airship." www.j-aircraft.com/research/jas_jottings/japanese_airship...

see also

www.wikidata.org/wiki/Q1500359

The Daily Worker. April 15, 1926, New York Edition, Page 3, left-hand side of page, has a map or proposed route, photos of crew, and a similar photo of the dirigible being dragged from its hangar near Leningrad.
chroniclingamerica.loc.gov/lccn/sn84020097/1926-04-15/ed-...
The transliteration of the location of the hangar in the article is Gatchina

See en.wikipedia.org/wiki/Gatchina