NO. 3 IXDEX 313 



Engine — continued i. A(i , 



horse-power (see also brake, horse-power) ;;;, 58, 1 16, 233 



hot- water 24, 25 



large, construction and tests of 133, 234-250, 281, 282 



weight of 247, 250, 256 



Manly 



multiple cylinder 226 



oscillating :;:!, 38 



radiator 252 



steam 24, 30 10, 64, 6 I, l L6, l- 1 ' 



dimensions of lit; 



Stringfellow 30, 31 



tests 37,55,61,69,102 L33 m ,282 



water-cooled 220, ■ 241,247,248,252 



weight of L16, 126, L30, 209, 247, 250 



Equilibrium, maintenance of 6, 31, 16, 51, HI, 213-216 



of aviator 161, 169, 213, 253 



and control 77, 78, 1 L9, 207-217 



lateral, and longitudinal stability 31, 



Evaporation, rate of gasoline 65, 66 



Evaporators 37, 65, 67, ill, lis 



F 



" Factor of safety " Ill, 186 



Feathers, pliability of I s 



toy-propeller, blades made of 8 



Feed, gravity 239 



Fibre insulation 241, 257 



Field trials, eighth-size 133, 134, L54 



large and quarto size models 126, 158, 170, 181, 22 282 



models Nos. 0. 1, 2, 3 29, 53 



Nos. 4, 5, 6 63, 92-106 



Nos. 5, G 2. 61, 79, L35-155, 231, 257 



Fire-proofing preparation ■ ' ls 



First flight of heavier than air machine 1 "'- 108 



First trial of a flying-machine in free air '■''_ 



Flexure of wings 82-84 > 91 > 9 ' S ' '"'' 



Flight {see aerodrome and aerodrome model flights I. 



bird, study of ; ' 



of large machine 1L ' ,; lsl ■ 255-282 



May 6, 1896 *■ '" 1 " 71,,X 



models Nos. i. 5. C -'■ '■■'■ ■''■ 92-109, L35-155 



quarter-size model -; 



rubber-driven models 



quarter-size models 158, 170, 226-233, 243, 255 257-261, 28 



Floating the models 64. 68. 69,99, 103, 11 . 



Fly-wheels of engine -'- -',:;• -''• ::': 



Flying aerodrome model as a kite •• • ■ • '■'-' ,- .'-".' 



Flying-weight of aerodromes [see also data sheets) .15, 62, 63, 7.1, 77. 81, 89, 91, lis. 247, 250, 256 



Foot-pounds, definition of ' ' '.,'.,' ' ' -„ 



energy in (sec dlsn horse-power) --■ - ' 



_, 57 



Force-pump 



Formula?: ..q 



are ^--'; '" .. 49,87,88,90,101 



center of pressure , ... 



. .„, 41, t.. 



drift ,- 



efficiency . 9 



Harting's ' Vg ( .., 



horse-power 41 4 '. 62 



lift or weight 



Manly's, for changing center of pressure 



Maxim's, for horse -power 4] 



resistance 



91 



soaring speed g 7 



tandem wing ' j g " 33" "27 62 



work ( see also horse-power ) 



