55

A.—4

One-year Period. Maintenance, and Operation Expenses, (a.) Maintenance of bases— £ f Cardington (for twelve months) .. .. .. .. .. 120,000 Pulham .. .. .. .. .. .. .. 15,000 Egypt mooring-mast station (for seven months) .. .. .. 7,000 142,000 (6.) Upkeep and operation of airships and provision of fuel— Crews (throe) .. .. .. .. .. .. .. 36,000 Petrol and oil .. .. .. .. .. .. .. 15,000 Hydrogen .. .. .. .. .. .. .. 18,000 Maintenance .. .. .. .. .. .. ..42,000 111,000 Total running expenditure .. .. .. .. .. .. £253,000 Contingencies. Total. £ £ £ Capital expenditure .. .. .. .. .. 177,000 50,000 227,000 Running expenditure .. .. .. .. .. 253,000 60,000 313,000 Totals ... .. .. .. .. £430,000 £110,000 £540,000 APPENDIX B. Cost of Erection of Masts, Provision of Bases, and Commissioning Existing Airships. (a.) Provision of Cardington base— *t Date of Completion. (I.) Move Croydon mast .. .. .. .. 10,000 Ist December, 1921. (2.) Hydrogen main .. .. .. .. 2,000 Ist December, 1921. (3.) Erect new mast (wood) .. .. .. .. 15,000 Ist February, 1922. (4.) Lengthen shed to take L7l .. .. .. 15,000 Ist May, 1922. (b.) Commissioning of airships — (1.)E36.. .. .. .. .. .. 6,000 Ist November, 1921. (2.) E37 .. .. .. .. .. .. 25,000 Ist January, 1922. (3.) L7l .. .. .. .. .. .. 44,000 Ist May, 1922. (4.) New gas-bags for R36 .. .. .. .. 25,000 Ist May, 1922. (5.) New gas-bag for R37 .. .. .. .. 25,000 Ist November, 1922. (c.) Provision of Marseilles mast by French .. .. .. .. Ist February, 1922. (d.) Provision of Cairo base— (1.) Erection of Killeagh shed .. .. .. 150,000 Ist September, 1922. (2.) Mooring-mast (wood) .. .. .. .. 15,000 Ist May, 1922. (3.) Hydrogen plant .. .. .. .. 10,000* Ist May, 1922. (4.) Hydrogen plant .. .. .. .. 6,000f Ist May, 1922. (5.) Gasometer .. .. .. .. ..20,000 Ist September, 1922. .(6.) Gas main .. .. .. .. .. 4,000 Ist May, 1922. (7.) Buildings .. .. .. .. .. 10,000 Ist September, 1922. (8.) Equipment .. .. .. .. .. 4,000 Ist May, 1922. (9.) Petrol storage .. .. .. .. .. 4,000 Ist May, 1922. (10.) Roads, &c. .. .. .. .. .. 20,000 Ist September, 1922. (11.) Transport .. .. .. .. .. 15,000 Ist September, 1922. (12.) Unforeseen .. .. .. .. .. 8,000 India mooring-mast station .. .. . . .. .. 60,000$ Ist September, 1922. Total capital expenditure .. .. .. £493,000 Two-year Period — Maintenance and Operation Expenses. First Year. Second Year. Total. (a.) Maintenance of bases — £ £ £ Cardington base .. .. .. .. .. 120,000 120,000 240,000 Pulham.. .. .. .. .. .. 15,000 15,000 30,000 Egypt mooring-mast station .. .. .. 7,000 .. 7,000 Egypt base, including mooring-mast .. .. .. 65,000 65,000 India mooring-mast station .. .. .. 1,000 12,000 13,000 £113,000 £212,000 £355,000

* Large silicol plant for use without gasometer. t Small gas plant for use with gasometer. i Includes small gas plant and gasometer.