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With reference to the above, the constructor must supply the pilot and passenger. Stress diagrams in duplicate for the aeroplane must be sent with or before the machine. A minimum factor of safety of six throughout is essential. No machine will be tested for military purposes unless it fulfils the conditions of one of the types as described in the table.

Seven dirigibles are under order for delivery by the end of 1914. These consist of one large rigid Zeppelin, being manufactured by the Vicars Co., three small non-rigid Parseval, one Astra-Torres, and two large semi-rigid, being built by the Armstrong Co. in England. The sum of £ 475,000 is available for the purchase of sea-planes. This amount will be spent by December 31, 1914. 

The English Army and Navy have been very fortunate in having few fatal accidents. This is due to the common use of the tractor type. Those that have occurred on the B. E. type have been due to the rudder post breaking in the air; other accidents have been attributed to the pilot's foot slipping from the rudder bar while in a turn. The wheel type of control, with rudder bar, has been universally adopted by the Army and Navy, being similar to that used by Germany and Austria.