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Aviation History
1921
1921 - 0181.PDF
r Flight, March 17, 1921 AIRCRAFTENGINEER^ First Aero Weekly in the World Founder and Editor: STANLEY SPOONER A Journal devoted to the Interests, Practice, and Progress of Aerial Locomotion aad Transport OFFICIAL ORGAN OF THE ROYAL AERO CLUB OF THE UNITED KINGDOM No. 638 (No. 11, Vol. XIH.) MARCH 17, 1921 ["Weekly, Price 6d.L Post free, 7d. Flight The Aircraft Engineer and Airships Eiiteritd Offices: 36, GREAT QUEEN STREET, KINGSWAY, W.C.I Telegrams : Tniditur, Westcent, London. Telephone : Gerrard i8a8 Annual Subscription Rates, Post Free : United Kingdom .. 30s. \i. Abroad .. .. 33s. od,* Them rites are subject to any alteration found necessary under abnormal conditions and to increases in postage rates * European subscriptions must be remitted in British currency CONTENTS Editorial Comment: ' PAGE Aircraft in Naval War .. .. .. .. .. .. .. 181 Air Power Indispensable 182 Mr. Churchill's Council of Three 1S2 Aerial Policemen of the Near Future. By Roderic Hill .. .. 1&3 Continental Arrivals and Departures .. .. .. .. .. 184 The Zeppelin-Staaken All-Metal Monoplane 185 Vickers Vimy-Commercial Ambulance Machine .. .. .. .. 187 The Royal Aero Club. Official Notices 188 Conference on Cross-Channel Air Services 9 French Civil Aviation Subsidies .. .. 190 The Royal Aeronautical Society Official Notices 190 Notices to Airmen .. .. .. .. .. ., .. . - 190 The vickers-SaundersFlying Boat.. . 191 Some Problems in the Design and Operation of Aircraft .. .. 191 Cambridge University Aeronautical Society: Control and Stability of Aeroplanes .. .. 192 Airisms from the Four Winds 193 Some Practical Points in the Structural Design of Aircraft. By Dr. A. P. Thurston -.. 194 The R.A.F. Memorial Fund 197 Correspondence 197 Legal Intelligence .. 8 Sidewinds 8 Imports and Exports 198 INDEX AND TITLE PAGE FOR VOL. XII. The 8-page Index for Vol. XII of " FLIGHT '' (January to December, 1920) is now ready, and can be obtained from the Publishers, 36, Great Queen Street, Kings- Way, W.C. 2. Price 1/- per copy, post free. DIARY OF FORTHCOMING EVENTS Club Secretaries and others desirous of announcing the dates of important fixtures are invited to send particulars for inclusion in the following list : Mar. 20-22 Aero Club of France Grand Prix. 2nd stage April 12 ... Wilbur Wright Memorial Lecture, by Maj. G. I. Taylor, before R.Ae.S. April 18-20 Monaco Seaplane Meeting April 20-22 Aero Club oi France Grand Prix. 3rd stage H*7 ... Seaplane Contests on Lake Garde, Italy Junt 1 ... Entries Close for Schneider Cup June 10 ... Raoe, Lugo-Trieste-Triente-Lugo Sept. 4-11 Brescia Races Sept. 5 ... Pulitser Trophy, Detroit, U.S.A.s «Pt. ... Qordon Bennett Balloon Race Bapt SO ... Provisional Date lor Schneider Cap EASTER HOLIDAYS Owing to Good Friday, it will be necessary for the next issue of FLIGHT, dated March 24, to go to press earlier than usual. All copy, Editorial and Advertisement, should reach FLIGHT Offices not later than the morning of Friday, March 18. N view of the recent discussion re- garding the advisability of building capital ships for the Royal Navy, the results of certain bombing experi- ments carried out in the United States possess considerable interest, not to say significance. We reproduce in this issue of FLIGHT a diagram, taken from the New York Herald, of the results of the dropping of 251 bombs from a height of 6,000 ft. Aircraft UpOn a target of the size of a modern Naval War battleship or battle-cruiser. This diagram shows that 55 direct hits were made, while 50 fell within the danger zone, making a percentage of 41 per cent, of destructive hits. Another experiment undertaken by the Navy Board and the Air Service jointly consisted in the exploding of a 1,650 lbs. British demolition bomb, containing 900 lbs. of amatol, between the two smoke-stacks of the battleship Indiana. The air experts came to the conclusion that direct hits on the deck and super- structure would break every electric light globe in the ship, throwing the vessel into absolute darkness between decks ; disrupt telephone, radio, fire- control and other electric apparatus ; fill with deadly gases the fire-room, engine-room, and all other compartments ventilated by forced draught ; cause shell-shock to all persons within a radius of 300 feet ; disrupt ammunition hoists, jam turrets, kill all the gun-crews and fire-control parties, and cause fires to break out which would explode all ammunition on the upper deck. We note that the naval experts contested these views, and pointed out that the Indiana was an obsplete ship, carrying much thinner armour than that borne by modern warships, that she was anchored, and that the bombs exploded on her deck were placed there, not dropped from aircraft. There is probably something in their contention, since we
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