±´¿Çµç×ÓÊé > Ó¢ÎÄÔ­Öøµç×ÓÊé > the mastery of the air(²Ù×Ý¿ÕÆø) >

µÚ19ÕÂ

the mastery of the air(²Ù×Ý¿ÕÆø)-µÚ19ÕÂ

С˵£º the mastery of the air(²Ù×Ý¿ÕÆø) ×ÖÊý£º ÿҳ4000×Ö

°´¼üÅÌÉÏ·½Ïò¼ü ¡û »ò ¡ú ¿É¿ìËÙÉÏÏ·­Ò³£¬°´¼üÅÌÉ쵀 Enter ¼ü¿É»Øµ½±¾ÊéĿ¼ҳ£¬°´¼üÅÌÉÏ·½Ïò¼ü ¡ü ¿É»Øµ½±¾Ò³¶¥²¿£¡
¡ª¡ª¡ª¡ªÎ´ÔĶÁÍꣿ¼ÓÈëÊéÇ©ÒѱãÏ´μÌÐøÔĶÁ£¡




into¡¡vapours¡£¡¡These¡¡vapours¡¡are¡¡sent¡¡through¡¡a¡¡series¡¡of¡¡pipes¡¡surrounded¡¡

with¡¡cold¡¡water£»¡¡where¡¡they¡¡are¡¡cooled¡¡and¡¡become¡¡liquid¡¡again¡£¡¡Petrol¡¡is¡¡

a¡¡mixture¡¡of¡¡these¡¡lighter¡¡products¡¡of¡¡the¡¡oil¡£¡¡

¡¡¡¡¡¡¡¡¡¡If¡¡¡¡¡¡petrol¡¡¡¡¡¡be¡¡¡¡¡¡placed¡¡¡¡¡¡in¡¡¡¡¡¡the¡¡¡¡¡¡air¡¡¡¡¡¡it¡¡¡¡¡¡readily¡¡¡¡¡¡turns¡¡¡¡¡¡into¡¡¡¡¡¡a¡¡¡¡¡¡vapour£»¡¡¡¡¡¡and¡¡¡¡¡¡this¡¡

vapour¡¡is¡¡extremely¡¡inflammable¡£¡¡For¡¡this¡¡reason¡¡petrol¡¡is¡¡always¡¡kept¡¡in¡¡

sealed¡¡¡¡¡¡tins£»¡¡¡¡¡¡and¡¡¡¡¡¡very¡¡¡¡¡¡large¡¡¡¡¡¡quantities¡¡¡¡¡¡are¡¡¡¡¡¡not¡¡¡¡¡¡allowed¡¡¡¡¡¡to¡¡¡¡¡¡be¡¡¡¡¡¡stored¡¡¡¡¡¡near¡¡

large¡¡¡¡¡¡towns¡£¡¡¡¡¡¡¡¡The¡¡¡¡¡¡greatest¡¡¡¡¡¡¡¡care¡¡¡¡¡¡has¡¡¡¡to¡¡¡¡¡¡be¡¡¡¡exercised¡¡¡¡¡¡in¡¡¡¡the¡¡¡¡¡¡use¡¡¡¡of¡¡¡¡this¡¡

¡¨unsafe¡¨¡¡spirit¡£¡¡For¡¡example£»¡¡it¡¡is¡¡most¡¡dangerous¡¡to¡¡smoke¡¡when¡¡filling¡¡a¡¡



¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡67¡¡


¡­¡¡Page¡¡68¡­

¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡THE¡¡MASTERY¡¡OF¡¡THE¡¡AIR¡¡



tank¡¡with¡¡petrol£»¡¡or¡¡to¡¡use¡¡the¡¡spirit¡¡near¡¡a¡¡naked¡¡light¡£¡¡Many¡¡motor¡­cars¡¡

have¡¡been¡¡set¡¡on¡¡fire¡¡through¡¡the¡¡petrol¡¡leaking¡¡out¡¡of¡¡the¡¡tank¡¡in¡¡which¡¡it¡¡

is¡¡carried¡£¡¡

¡¡¡¡¡¡¡¡¡¡The¡¡tank¡¡which¡¡contains¡¡the¡¡petrol¡¡is¡¡placed¡¡under¡¡one¡¡of¡¡the¡¡seats¡¡of¡¡

the¡¡motor¡­car£»¡¡or¡¡at¡¡the¡¡rear£»¡¡if¡¡in¡¡use¡¡on¡¡a¡¡motor¡­cycle¡¡it¡¡is¡¡arranged¡¡along¡¡

the¡¡top¡¡bar¡¡of¡¡the¡¡frame£»¡¡just¡¡in¡¡front¡¡of¡¡the¡¡driver¡£¡¡This¡¡tank¡¡is¡¡connected¡¡

to¡¡¡¡¡¡the¡¡¡¡¡¡¡¨carburettor¡¨£»¡¡¡¡¡¡¡¡¡¡a¡¡¡¡little¡¡¡¡vessel¡¡¡¡¡¡having¡¡¡¡¡¡¡¡a¡¡¡¡¡¡small¡¡¡¡¡¡nozzle¡¡¡¡¡¡¡¡projecting¡¡

upwards¡¡in¡¡its¡¡centre¡£¡¡The¡¡petrol¡¡trickles¡¡from¡¡the¡¡tank¡¡into¡¡the¡¡carburettor£»¡¡

and¡¡¡¡¡¡is¡¡¡¡¡¡kept¡¡¡¡¡¡at¡¡¡¡¡¡a¡¡¡¡constant¡¡¡¡¡¡level¡¡by¡¡¡¡means¡¡¡¡¡¡of¡¡¡¡a¡¡¡¡float¡¡¡¡¡¡which¡¡¡¡¡¡acts¡¡¡¡¡¡in¡¡¡¡¡¡a¡¡¡¡¡¡very¡¡

similar¡¡way¡¡to¡¡the¡¡ballcock¡¡of¡¡a¡¡water¡¡cistern¡£¡¡

¡¡¡¡¡¡¡¡¡¡The¡¡carburettor¡¡is¡¡connected¡¡to¡¡the¡¡cylinder¡¡of¡¡the¡¡engine¡¡by¡¡another¡¡

pipe£»¡¡and¡¡there¡¡is¡¡valve¡¡which¡¡is¡¡opened¡¡by¡¡the¡¡engine¡¡itself¡¡and¡¡is¡¡closed¡¡

by¡¡¡¡¡¡a¡¡¡¡¡¡spring¡£¡¡¡¡¡¡By¡¡¡¡¡¡an¡¡¡¡¡¡ingenious¡¡¡¡¡¡contrivance¡¡¡¡¡¡the¡¡¡¡¡¡valve¡¡¡¡¡¡is¡¡¡¡¡¡opened¡¡¡¡¡¡when¡¡¡¡¡¡the¡¡

piston¡¡moves¡¡out¡¡of¡¡the¡¡cylinder£»¡¡and¡¡a¡¡vacuum¡¡is¡¡created¡¡behind¡¡it¡¡and¡¡in¡¡

the¡¡carburettor¡£¡¡This¡¡carries¡¡a¡¡fine¡¡spray¡¡of¡¡petrol¡¡to¡¡be¡¡sucked¡¡up¡¡through¡¡

the¡¡nozzle¡£¡¡Air¡¡is¡¡also¡¡sucked¡¡into¡¡the¡¡carburettor£»¡¡and¡¡the¡¡mixture¡¡of¡¡air¡¡

and¡¡petrol¡¡spray¡¡produces¡¡an¡¡inflammable¡¡vapour¡¡which¡¡is¡¡drawn¡¡straight¡¡

into¡¡the¡¡cylinder¡¡of¡¡the¡¡engine¡£¡¡

¡¡¡¡¡¡¡¡¡¡As¡¡¡¡¡¡soon¡¡¡¡¡¡as¡¡¡¡¡¡the¡¡¡¡¡¡piston¡¡¡¡¡¡moves¡¡¡¡¡¡back£»¡¡¡¡¡¡the¡¡¡¡¡¡inlet¡¡¡¡¡¡valve¡¡¡¡¡¡is¡¡¡¡¡¡automatically¡¡

closed¡¡and¡¡the¡¡vapour¡¡is¡¡compressed¡¡into¡¡the¡¡top¡¡of¡¡the¡¡cylinder¡£¡¡This¡¡is¡¡

exploded¡¡by¡¡an¡¡electric¡¡spatk£»¡¡which¡¡is¡¡passed¡¡between¡¡two¡¡points¡¡inside¡¡

the¡¡¡¡¡¡cylinder£»¡¡¡¡¡¡and¡¡¡¡¡¡the¡¡¡¡¡¡force¡¡¡¡¡¡of¡¡¡¡¡¡the¡¡¡¡¡¡explosion¡¡¡¡¡¡drives¡¡¡¡¡¡the¡¡¡¡¡¡piston¡¡¡¡¡¡outwards¡¡

again¡£¡¡¡¡¡¡On¡¡¡¡¡¡its¡¡¡¡¡¡return¡¡¡¡¡¡the¡¡¡¡¡¨exhaust¡¨¡¡¡¡¡¡or¡¡¡¡¡¡burnt¡¡¡¡¡¡gases¡¡¡¡¡¡are¡¡¡¡driven¡¡¡¡¡¡out¡¡¡¡¡¡through¡¡

another¡¡valve£»¡¡known¡¡as¡¡the¡¡¡¨exhaust¡¨¡¡valve¡£¡¡

¡¡¡¡¡¡¡¡¡¡Whether¡¡the¡¡engine¡¡has¡¡two£»¡¡four£»¡¡or¡¡six¡¡cylinders£»¡¡the¡¡car¡¡is¡¡propelled¡¡

in¡¡a¡¡similar¡¡way¡¡for¡¡all¡¡the¡¡pistons¡¡assist¡¡in¡¡turning¡¡one¡¡shaft£»¡¡called¡¡the¡¡

engine¡¡shaft£»¡¡which¡¡runs¡¡along¡¡the¡¡centre¡¡of¡¡the¡¡car¡¡to¡¡the¡¡back¡¡axle¡£¡¡

¡¡¡¡¡¡¡¡¡¡The¡¡¡¡¡¡¡¡rapid¡¡¡¡¡¡¡¡explosions¡¡¡¡¡¡¡¡¡¡in¡¡¡¡the¡¡¡¡cylinder¡¡¡¡¡¡¡¡produce¡¡¡¡¡¡¡¡¡¡great¡¡¡¡¡¡heat£»¡¡¡¡¡¡and¡¡¡¡¡¡the¡¡

cylinders¡¡are¡¡kept¡¡cool¡¡by¡¡circulating¡¡water¡¡round¡¡them¡£¡¡When¡¡the¡¡water¡¡

has¡¡¡¡¡¡become¡¡¡¡¡¡very¡¡¡¡¡¡hot¡¡¡¡¡¡it¡¡¡¡¡¡passes¡¡¡¡¡¡through¡¡¡¡¡¡a¡¡¡¡¡¡number¡¡¡¡¡¡of¡¡¡¡¡¡pipes£»¡¡¡¡¡¡called¡¡¡¡¡¡the¡¡

¡¨radiator¡¨£»¡¡placed¡¡in¡¡front¡¡of¡¡the¡¡car£»¡¡the¡¡cold¡¡air¡¡rushing¡¡between¡¡the¡¡coils¡¡

cools¡¡the¡¡water£»¡¡so¡¡that¡¡it¡¡can¡¡be¡¡used¡¡over¡¡and¡¡over¡¡again¡£¡¡

¡¡¡¡¡¡¡¡¡¡No¡¡water¡¡is¡¡needed¡¡for¡¡the¡¡engine¡¡of¡¡a¡¡¡¡¡¡motor¡¡cycle¡£¡¡You¡¡will¡¡¡¡¡¡notice¡¡

that¡¡the¡¡cylinders¡¡are¡¡enclosed¡¡by¡¡wide¡¡rings¡¡of¡¡metal£»¡¡and¡¡these¡¡rings¡¡are¡¡



¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡68¡¡


¡­¡¡Page¡¡69¡­

¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡THE¡¡MASTERY¡¡OF¡¡THE¡¡AIR¡¡



quite¡¡sufficient¡¡to¡¡radiate¡¡the¡¡heat¡¡as¡¡quickly¡¡as¡¡it¡¡is¡¡generated¡£¡¡



¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡69¡¡


¡­¡¡Page¡¡70¡­

¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡THE¡¡MASTERY¡¡OF¡¡THE¡¡AIR¡¡



¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡CHAPTER¡¡XXII¡¡The¡¡Aeroplane¡¡Engine¡¡



¡¡¡¡¡¡¡¡¡¡We¡¡¡¡¡¡have¡¡¡¡¡¡seen¡¡¡¡¡¡that¡¡¡¡¡¡a¡¡¡¡¡¡very¡¡¡¡¡¡important¡¡¡¡¡¡part¡¡¡¡¡¡of¡¡¡¡¡¡the¡¡¡¡¡¡internal¡­combustion¡¡

engine£»¡¡as¡¡used¡¡on¡¡the¡¡motor¡­car£»¡¡is¡¡the¡¡radiator£»¡¡which¡¡prevents¡¡the¡¡engine¡¡

from¡¡becoming¡¡overheated¡¡and¡¡thus¡¡ceasing¡¡to¡¡work¡£¡¡The¡¡higher¡¡the¡¡speed¡¡

at¡¡¡¡¡¡which¡¡¡¡¡¡the¡¡¡¡¡¡engine¡¡¡¡¡¡runs¡¡¡¡¡¡the¡¡¡¡¡¡hotter¡¡¡¡¡¡does¡¡¡¡¡¡it¡¡¡¡¡¡become£»¡¡¡¡¡¡and¡¡¡¡¡¡the¡¡¡¡¡¡greater¡¡¡¡¡¡the¡¡

necessity¡¡for¡¡an¡¡efficient¡¡cooling¡¡apparatus¡£¡¡

¡¡¡¡¡¡¡¡¡¡But¡¡the¡¡motor¡¡on¡¡an¡¡aeroplane¡¡has¡¡to¡¡do¡¡much¡¡harder¡¡work¡¡than¡¡the¡¡

motor¡¡¡¡¡¡used¡¡¡¡¡¡for¡¡¡¡¡¡driving¡¡¡¡¡¡the¡¡¡¡¡¡motor¡­car£»¡¡¡¡¡¡while¡¡¡¡¡¡it¡¡¡¡¡¡maintains¡¡¡¡¡¡a¡¡¡¡¡¡much¡¡¡¡¡¡higher¡¡

speed¡£¡¡Thus¡¡there¡¡is¡¡an¡¡even¡¡greater¡¡tendency¡¡for¡¡it¡¡to¡¡become¡¡overheated£»¡¡

and¡¡the¡¡great¡¡problem¡¡which¡¡inventors¡¡of¡¡aeroplane¡¡engines¡¡have¡¡had¡¡to¡¡

face¡¡is¡¡the¡¡construction¡¡of¡¡a¡¡light¡¡but¡¡powerful¡¡engine¡¡equipped¡¡with¡¡some¡¡

apparatus¡¡for¡¡keeping¡¡it¡¡cool¡£¡¡

¡¡¡¡¡¡¡¡¡¡Many¡¡different¡¡forms¡¡of¡¡aeroplane¡¡engines¡¡have¡¡been¡¡invented¡¡during¡¡

the¡¡last¡¡few¡¡years¡£¡¡Some¡¡inventors¡¡preferred¡¡the¡¡radiator¡¡system¡¡of¡¡cooling¡¡

the¡¡engine£»¡¡but¡¡the¡¡tank¡¡containing¡¡the¡¡water£»¡¡and¡¡the¡¡radiator¡¡itself£»¡¡added¡¡

considerably¡¡to¡¡the¡¡weight¡¡of¡¡the¡¡motor£»¡¡and¡¡this£»¡¡of¡¡course£»¡¡was¡¡a¡¡serious¡¡

drawback¡¡to¡¡its¡¡employment¡£¡¡

¡¡¡¡¡¡¡¡¡¡But¡¡¡¡¡¡in¡¡¡¡¡¡1909¡¡¡¡¡¡there¡¡¡¡¡¡appeared¡¡¡¡¡¡a¡¡¡¡¡¡most¡¡¡¡¡¡ingeniously¡­constructed¡¡¡¡¡¡engine¡¡

which¡¡¡¡¡¡was¡¡¡¡¡¡¡¡¡¡destined¡¡¡¡¡¡¡¡to¡¡¡¡take¡¡¡¡¡¡a¡¡¡¡very¡¡¡¡¡¡prominent¡¡¡¡¡¡¡¡part¡¡¡¡¡¡in¡¡¡¡the¡¡¡¡progress¡¡¡¡¡¡of¡¡

aviation¡£¡¡This¡¡was¡¡the¡¡famous¡¡¡¨Gnome¡¨¡¡engine£»¡¡by¡¡means¡¡of¡¡which¡¡races¡¡

almost¡¡innumerable¡¡have¡¡been¡¡won£»¡¡and¡¡amazing¡¡records¡¡established¡£¡¡

¡¡¡¡¡¡¡¡¡¡We¡¡have¡¡already¡¡referred¡¡to¡¡the¡¡engine¡¡shaft¡¡of¡¡the¡¡motor¡­car£»¡¡which¡¡is¡¡

revolved¡¡¡¡¡¡by¡¡¡¡¡¡the¡¡¡¡¡¡pistons¡¡¡¡¡¡of¡¡¡¡¡¡the¡¡¡¡¡¡various¡¡¡¡¡¡fixed¡¡¡¡¡¡cylinders¡£¡¡¡¡¡¡In¡¡¡¡¡¡all¡¡¡¡¡¡aeroplane¡¡

engines¡¡¡¡¡¡which¡¡¡¡¡¡had¡¡¡¡¡¡¡¡¡¡¡¡appeared¡¡¡¡¡¡before¡¡¡¡¡¡¡¡the¡¡¡¡¡¡Gnome¡¡¡¡¡¡the¡¡¡¡¡¡¡¡same¡¡¡¡¡¡principle¡¡¡¡¡¡¡¡of¡¡

construction¡¡had¡¡been¡¡adopted£»¡¡that¡¡is¡¡to¡¡say£»¡¡the¡¡cylinders¡¡were¡¡fixed£»¡¡and¡¡

the¡¡engine¡¡shaft¡¡revolved¡£¡¡

¡¡¡¡¡¡¡¡¡¡But¡¡in¡¡the¡¡Gnome¡¡engine¡¡the¡¡reverse¡¡order¡¡of¡¡things¡¡takes¡¡place£»¡¡the¡¡

shaft¡¡is¡¡fixed£»¡¡and¡¡the¡¡cylinders¡¡fly¡¡round¡¡it¡¡at¡¡a¡¡tremendous¡¡speed¡£¡¡Thus¡¡

the¡¡rapid¡¡whirl¡¡in¡¡the¡¡air¡¡keeps¡¡the¡¡engine¡¡cool£»¡¡and¡¡cumbersome¡¡tanks¡¡and¡¡

unwieldy¡¡radiators¡¡¡¡¡¡can¡¡be¡¡¡¡¡¡dispensed¡¡with¡£¡¡This¡¡arrangement¡¡¡¡¡¡enabled¡¡¡¡¡¡the¡¡

engine¡¡to¡¡be¡¡made¡¡very¡¡light¡¡and¡¡yet¡¡be¡¡of¡¡greater¡¡horse¡­power¡¡than¡¡that¡¡

attained¡¡by¡¡previously¡­existing¡¡engines¡£¡¡

¡¡¡¡¡¡¡¡¡¡A¡¡further¡¡very¡¡important¡¡characteristic¡¡of¡¡the¡¡rotary¡­cylinder¡¡engine¡¡is¡¡



¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡70¡¡


¡­¡¡Page¡¡71¡­

¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡THE¡¡MASTERY¡¡OF¡¡THE¡¡AIR¡¡



that¡¡no¡¡flywheel¡¡is¡¡used£»¡¡in¡¡a¡¡stationary¡¡engine¡¡it¡¡has¡¡been¡¡found¡¡necessary¡¡

to¡¡have¡¡a¡¡fly¡­wheel¡¡in¡¡addition¡¡to¡¡the¡¡propeller¡£¡¡The¡¡rotary¡­cylinder¡¡engine¡¡

acts¡¡as¡¡its¡¡own¡¡fly¡­wheel£»¡¡thus¡¡again¡¡saving¡¡considerable¡¡weight¡£¡¡

¡¡¡¡¡¡¡¡The¡¡new¡¡engine¡¡astonished¡¡experts¡¡when¡¡they¡¡first¡¡examined¡¡it£»¡¡and¡¡all¡¡

sorts¡¡of¡¡disasters¡¡to¡¡it¡¡were¡¡predicted¡£¡¡It¡¡was¡¡of¡¡such¡¡revolutionary¡¡design¡¡

that¡¡wiseacres¡¡shook¡¡their¡¡heads¡¡and¡¡said¡¡that¡¡any¡¡pilot¡¡who¡¡used¡¡it¡¡would¡¡

be¡¡constantly¡¡in¡¡trouble¡¡with¡¡it¡£¡¡But¡¡during¡¡the¡¡last¡¡few¡¡years¡¡it¡¡has¡¡passed¡¡

from¡¡¡¡¡¡one¡¡¡¡¡¡triumph¡¡¡¡¡¡to¡¡¡¡¡¡another£»¡¡¡¡¡¡commencing¡¡¡¡¡¡with¡¡¡¡¡¡a¡¡¡¡¡¡long¡­distance¡¡¡¡¡¡record¡¡

established¡¡by¡¡Henri¡¡Farman¡¡at¡¡Rheims£»¡¡in¡¡1909¡£¡¡It¡¡has¡¡since¡¡been¡¡used¡¡

with¡¡¡¡¡¡success¡¡by¡¡¡¡aviators¡¡¡¡¡¡all¡¡the¡¡¡¡¡¡world¡¡over¡£¡¡That¡¡¡¡¡¡in¡¡¡¡¡¡the¡¡Aerial¡¡¡¡¡¡Derby¡¡¡¡of¡¡

1913which¡¡was¡¡flown¡¡over¡¡a¡¡course¡¡Of¡¡94¡¡miles¡¡around¡¡Londonsix¡¡of¡¡

the¡¡eleven¡¡machines¡¡which¡¡took¡¡part¡¡in¡¡the¡¡race¡¡were¡¡fitted¡¡with¡¡Gnome¡¡

engines£»¡¡¡¡and¡¡¡¡¡¡victory¡¡¡¡was¡¡¡¡¡¡achieved¡¡¡¡¡¡by¡¡¡¡Mr¡£¡¡¡¡Gustav¡¡¡¡¡¡Hamel£»¡¡¡¡who¡¡¡¡¡¡drove¡¡¡¡¡¡an¡¡

80¡­horse¡­power¡¡Gnome£»¡¡is¡¡conclusive¡¡evidence¡¡of¡¡the¡¡high¡¡value¡¡of¡¡this¡¡

engine¡¡in¡¡aviation¡£¡¡



¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡71¡¡


¡­¡¡Page¡¡72¡­

¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡THE¡¡MASTERY¡¡OF¡¡THE¡¡AIR¡¡



¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡CHAPTER¡¡XXIII¡¡A¡¡Famous¡¡British¡¡Inventor¡¡of¡¡



¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡Aviation¡¡Engines¡¡



¡¡¡¡¡¡¡¡¡¡In¡¡¡¡¡¡the¡¡¡¡¡¡general¡¡¡¡¡¡design¡¡¡¡¡¡and¡¡¡¡¡¡beauty¡¡¡¡¡¡of¡¡¡¡¡¡workmanship¡¡¡¡¡¡involved¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡in¡¡¡¡the¡¡

construction¡¡of¡¡¡¡¡¡aeroplanes£»¡¡Britain¡¡is¡¡now¡¡quite¡¡¡¡¡¡the¡¡¡¡¡¡equal¡¡of¡¡¡¡¡¡her¡¡¡¡¡¡foreign¡¡

rivals£»¡¡even¡¡in¡¡engines¡¡we¡¡are¡¡making¡¡extremely¡¡rapid¡¡progress£»¡¡and¡¡the¡¡

well¡­known¡¡Green¡¡Engine¡¡Company£»¡¡profiting¡¡by¡¡the¡¡result¡¡of¡¡nine¡¡years'¡¡

experience£»¡¡are¡¡able¡¡to¡¡turn¡¡out¡¡aeroplane¡¡engines¡¡as¡¡reliable£»¡¡efficient£»¡¡and¡¡

as¡¡light

·µ»ØĿ¼ ÉÏÒ»Ò³ ÏÂÒ»Ò³ »Øµ½¶¥²¿ ÔÞ£¨0£© ²È£¨0£©

Äã¿ÉÄÜϲ»¶µÄ