item: #1 of 4
          id: 30047
      author: Abbot, Willis J. (Willis John)
       title: Aircraft and Submarines The Story of the Invention, Development, and Present-Day Uses of War's Newest Weapons
        date: None
       words: 118644
      flesch: 69
     summary: The submarines and near-submarines built in the United States during the Civil War were remarkable rather for what they actually accomplished than for what they contributed towards the development of submarine boats. Perhaps the greatest service which they rendered in the latter direction was that they proved to the satisfaction of many scientific men that submarine boats really held vast possibilities as instruments of naval warfare.
    keywords: air; aircraft; airplane; american; army; attack; aviation; aviator; away; aërial; balloon; battle; boat; bombs; british; carrying; construction; course; crew; day; days; depth; development; earth; end; enemy; engine; england; fact; feet; fighting; fire; flying; france; french; gas; general; german; government; ground; guns; half; high; holland; hours; illustration; lake; light; lines; machine; means; men; miles; military; moment; motor; naval; navy; new; number; people; pilot; place; point; position; power; result; sea; service; ship; speed; states; submarine; submarine boat; surface; time; torpedo; type; united; use; vessel; war; water; way; work; world; years; zeppelin
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        item: #2 of 4
          id: 31211
      author: Bott, Alan
       title: Cavalry of the Clouds
        date: None
       words: 50269
      flesch: 73
     summary: Less than the average delay was expected, for two flights of the squadron were already on the Somme, and we of the third flight were to join them immediately we received our full complement of war machines. Other machines are searching for new emplacements and signs of preparation behind the enemy trenches.
    keywords: aerodrome; aeroplane; air; aircraft; archie; attack; away; black; boche; british; bus; clouds; commander; corps; country; day; days; east; enemy; engine; feet; fire; flight; flying; france; german; good; ground; gun; guns; half; height; home; hun; land; leave; left; lines; machine; miles; minutes; near; new; observer; pilot; reconnaissance; second; service; shell; squadron; time; trenches; war; wind; work
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        item: #3 of 4
          id: 40170
      author: Smith, Laurence Yard
       title: The Romance of Aircraft
        date: None
       words: 66523
      flesch: 68
     summary: The cylinders of an internal combustion engine can be grouped in one of three ways, and thus there are three main types of airplane engines we should be able to recognize. He takes apart and puts together again with his own hands various types of airplane engines, he practises gunnery at a moving target, he assembles an airplane out of the dismantled parts.
    keywords: air; air machine; aircraft; airplane; airship; balloon; biplane; bombing; british; car; construction; course; day; earth; enemy; engine; envelope; feet; fire; flight; flying; forward; france; french; gas; german; kite; lines; little; machine; men; military; motor; new; number; order; parachute; pilot; planes; power; propeller; service; speed; time; type; war; way; weight; wings; work; world
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        item: #4 of 4
          id: 793
      author: Talbot, Frederick Arthur Ambrose
       title: Aeroplanes and Dirigibles of War
        date: None
       words: 61923
      flesch: 57
     summary: The Allied forces improvised travelling anti-aircraft offences by mounting the latest types of Vickers, Hotchkiss, and other machine guns in armoured motor cars. Other German machines which are used in the military service are the Gotha and the Albatross.
    keywords: aerial; aeroplane; air; aircraft; airman; airship; artillery; balloon; bomb; british; craft; enemy; fact; feet; field; fire; firing; force; french; gas; german; ground; gun; guns; height; lines; machine; manner; means; miles; military; motor; operations; point; position; range; result; shell; speed; time; type; vessel; war; work; zeppelin
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