57

A.—4

b.) Upkeep ard cpaation of airships ard provision of fuel: No estimate has been prepared for these individual years. At the end of the fifth year, however, when fortnightly services were in being to India, South Africa, and Australia, the expenditure under this head would be at the rate of :— Per Annum. £ Crews (ten) .. .. .. " .. .. .. 120,000 Petrol and oil .. .. .. .. .. .. 437,000 Hydrogen .. .. .. .. .. .. 437,000 Maintenance .. .. .. .. .. .. 100,000 ■ «- Total .. .. .. .. .. £1,094,000 In the above figures petrol has been taken at 3s. per gallon and hydrogen at 20s. per 1,000 cubic feet. Contingencies. Total. £ £ £ Capital expenditure .. .. .. 4.545,000 812,000 5,357,000 Running expenditure .. .. .. 901,000* 688,000 1,589,000* (c.) Carrying-capacity of services : Assuming the full load of the new airships on the longest flight between refuelling stations to be fifty passengers and 13 tons of mails and freight, the maximum traffic that could be carried on each of the three routes by a fortnightly service would be —England-India, 1,300 passengers and 338 tons of freight in each direction, or a total of 2,600 passengers and 676 tons of freight per annum on the route, and similar figures for the other two routes. '. APPENDIX D. Additional Expenditure involved, in carrying out Demonstration Flights to South Africa and, Australia in Two-year Period. Capital expenditure —Provision of mooring-mast stations")" — £ £ South Africa —Mombasa .. .. .. .. .. 55,000 South Africa .. .. .. .. .. .. 55,(XX) 110,000 Australia—Perth .. .. .. .. ..55,000 Australia —Melbourne .. .. .. .. .. 55,000 Ceylon (for return journey) .. .. .. .. 55,000 165,000 275,000 Running expenditure— Personnel and maintenance of five mooring-mast stations, at £1,000 per month per station for three months .. .. .. 15,000 Two flights, Egypt to Australia and return, at £9,000 .. .. 18,000 33,000 Total .. .. .. .. .. .. £308,000

* Plus flying costs. t Details of mooring-mast station : Mast, £15,000; gasometer, £20,000; gas main, £2,000; gas plant, £0,000; buildings, £1,000 ; equipment, £2,000 ; roads, £1,000 ; transport, £3,000 ; add for contingencies, £6,000 : total, £55,000,

8-A. 4.