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elevators which are of monoplane type fastened to the keel by internal bracing. This tail is markedly superior to the one on the Roma.

The keel is triangular.

The airship can be very readily transformed into a war type for bombardment work at great distances. If this was desired, the passengers' cabins could be replaced by a distributed load of ten tons of bombs or aerial torpedos. With full war equipment this airship could easily attain an altitude of five thousand meters.

This ship is the semi-rigid type with a keel running from bow to stern. Both bow and stern are rigid. Three round, steel tubes are welded into ball and socket joints at each end to form the units used to construct the ship. These are then used in lengths of five to ten meters each to form a great triangular keel. Superimposed above this triangular frame are other members which continue the sides of the triangle up to the envelope.

The gas is carried in numerous compartments as is standard practice with semi-rigids. The envelope is held in shape

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