1. Mihnovich Ekaterina Steponute Diana 11”A” class

2. Zeppelin (from fr. dirigeable — guided) — an aircraft is easier than air, balloon with an engine due to which a zeppelin can move regardless of direction of currents of air. Their golden age was on the first half of XX age, when passenger zeppelins were accomplished by regular flights between Europe and America. The epoch of zeppelins ended in 1937, when the German passenger zeppelin-liner of «Gindenburg» burned out straight in air-port of New York.

3. At the end of XX age interest recommenced to the zeppelins: now in place of explosive hydrogen inert helium is used. Nevertheless until now the sphere of their application remains marginal'noy: publicity and pleasure flights, looking after travelling motion etc. Zeppelins yield to aerodynamic aerotechnics on speed descriptions (as a rule to 160 km/h), and main — from meteozavisimosti and necessity to create a separate infrastructure for them.

4. Advantages: are the Large carrying capacity and distance of non-stop flights. More high reliability and safety is in principle attainable, what at airplanes and helicopters. Cheapness of transportations, especially bulk and massive freights.

6. Failings Relatively small speed as compared to by airs and helicopters, low manoeuvrability — above all things from aerodynamic high- resistance at flight. Landing complication. Very largenesses of the required hangarages, complication of storage and service on earth. Relatively high cost of maintenance of zeppelin, especially largenesses.

7. First flights of Izobretatelm of zeppelin Jean is considered Cambric of Mari Sharl' Meusnier. The zeppelin of Meusnier must was be done in form ellipsoid. Dirigibility must was be osuschestvlenna by three propellers, revolved by hand efforts 80 persons. Changing a gas volume in a balloon by the use of balloneta, it is possible it was to regulate the height of flight of dirizhablyai therefore he offered two shells — external basic and internal.