第 20 节
作者:千顷寒      更新:2021-02-20 15:27      字数:9322
  〃Bless my thermometer!〃 gasped Mr。 Damon。 〃This is terrible!〃 The
  airship    was    plunging     and   swaying     about    in  the   awful    gale。  〃Can't
  something be done; Tom?〃
  〃What   has   happened?〃   cried   Mr。   Nestor。   〃We   were   on   a   level   keel
  before。 What is it?〃
  〃It's the automatic balancing rudder!〃 answered Tom。 〃Something has
  happened to it。 The wind may have broken it! Come on; Ned!〃 and he led
  the way to the engine room。
  〃What     are   you   going    to  do?   Don't   you    want   Koku     to  shift  the
  deflecting rudder? Here he is;〃 Ned added; as the giant came forward; in
  response to a signal bell that Tom's chum had rung。
  〃It's too late to try the deflecting rudder!〃 tried Tom。 〃I must see what
  is   the   matter   with   our   balancer。〃   As   he   spoke   the   ship   gave   a   terrific
  plunge; and the occupants were thrown sideways。 The next moment it was
  on   a   level   keel   again;   scudding   along   with   the   gale;   but   there   was   no
  telling when the craft would again nearly capsize。
  Tom     looked     at   the   mechanism       controlling    the    equalizing     and
  equilibrium   rudder。   It   was   out   of   order;   and   he   guessed   that   the   terrific
  wind was responsible for it。
  〃What can we do?〃 cried Ned; as the airship nearly rolled over。 〃Can't
  we do anything; Tom?〃
  〃Yes。   I'm   going   to   try。   Keep   calm   now。   We   may   come   out   all   right。
  This is the worst blow we've been in since we were in Russia。 Start the gas
  machine full blast。 I want all the vapor I can get。〃
  As I   have   explained the   Flyer was   a   combined dirigible   balloon   and
  aeroplane。 It could be used as either; or both; in combination。 At present
  the   gas   bag   was   not   fully   inflated;   and   Tom   had   been   sending   his   craft
  along as an aeroplane。
  〃What are you going to do?〃 cried Ned; as he pulled over the lever that
  set the gas generating machine in operation。
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  〃I'm going up as high as I can go!〃 cried Tom。 〃If we can't go down we
  must go up。 I'll get above the hurricane instead of below it。 Give me all the
  gas you can; Ned!〃
  The vapor hissed as it rushed into the big bag overhead。 Tom carried
  aboard his craft the chemicals needed to generate the powerful lifting gas;
  of which he alone had the secret。 It was more powerful than hydrogen; and
  simple to make。 The balloon of the Flyer was now being distended。
  Meanwhile Tom; with Koku; Mr。 Damon and Mr。 Nestor to help him;
  worked over the deflecting rudder; and also on the equilibrium mechanism。
  But they could not get either to operate。
  Ned   stood   by  the gas   machine;  and   worked   it   to the   limit。  But   even
  with all that energy; so powerful was the wind; that the Flyer rose slowly;
  the gale actually holding her down as a water…logged craft is held below
  the waves。 Ordinarily; with the gas machine set at its limit the craft would
  have shot up rapidly。
  At times the airship would skim along on the level; and again it would
  be pitched and tossed about; until it was all the occupants could do to keep
  their   feet。  Mr。   Damon      was   continually    blessing    everything     he  could
  remember。
  〃Now   she's   going!〃   suddenly   cried   Ned;   as   he   looked   at   the   dials
  registering the pressure of the gas; and showing the height of the airship
  above the earth。
  〃Going   how?〃   gasped   Tom;   as   he   looked   over   from   where   he   was
  working at the equilibrium apparatus。 〃Going down?〃
  〃Going up!〃 shouted Ned。 〃I guess we'll be all right soon!〃
  It was true。 Now that the bag was filled with the powerful lifting gas;
  under    pressure;    the  Flyer   was   beginning     to  get  out  of  the  dangerous
  predicament into which the gale had blown her; Up and up she went; and
  every foot she climbed the power of the wind became less。
  〃Maybe it all happened for the best;〃 said Tom; as he noted the height
  gage。 〃If we had gone down; the wind might have been worse nearer the
  earth。〃
  Later they learned that this was so。 The most destructive wind storm
  ever   known   swept   across   the   southern   part   of   Europe;   over   which   they
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  were     flying   that   night;   and;   had   the  airship    gone    down;    she   would
  probably   have   been   destroyed。   But;   going   up;   she   got   above   the   wind…
  strata。 Up and up she climbed; until; when three miles above the earth; she
  was in a calm zone。 It was rather hard to breathe at this height; and Tom
  set the oxygen apparatus at work。
  This created in the interior of the craft an atmosphere almost like that
  on the earth; and the travelers were made more at their ease。 Getting out of
  the terrible wind pressure made it possible to work the deflecting rudder;
  though Tom had no idea of going down; as long as the blow lasted。
  〃We'll   just   sail   along   at   this   height   until   morning;〃   he   said;   〃and   by
  then the gale may be over; or we may be beyond the zone of it。 Start the
  propellers;   Ned。   I   think   I   can   manage   to   repair   the   equilibrium   rudder
  now。〃
  The propellers; which gave the forward motion to the airship; had been
  stopped when it was found that the wind was carrying her along; but they
  were now put in motion again; sending the Flyer forward。 In a short time
  Tom had the equilibrium machine in order; and matters were now normal
  again。
  〃But   that   was   a  strenuous   time   while   it   lasted;〃   remarked   the   young
  inventor; as he sat down。
  〃It sure was;〃 agreed Ned。
  〃Bless   my   pen   wiper!〃   cried   Mr。   Damon。   〃That   was   one   of   the   few
  times   when   I   wish   I'd   never   come   with   you;  Tom   Swift;〃   and   everyone
  laughed at that。
  The Flyer was now out of danger; going along high in the air through
  the night; while the gale raged below her。 At Tom's suggestion; Koku got a
  lunch     ready;   for  they   were    all  tired  with   their  labors;   and   somewhat
  nervous from the danger and excitement。
  〃And   now   for   sleep!〃   exclaimed   Tom;   as   he   pushed   back   his   plate。
  〃Ned; set the automatic steering gear; and we'll see where we bring up by
  morning。〃
  An   examination;   through   a   powerful   telescope   in   the   bright   light   of
  morning; showed the travelers that they were over the outskirts of a large
  city; which; later; they learned was Rome; Italy。
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  〃We've made a good trip;〃 said Tom。 〃The gale had us worried; but it
  sent us along at a lively clip。 Now for Switzerland; and the avalanches!〃
  They made a landing at a village just outside the 〃Holy City;〃 as Rome
  is   often   called;  and   renewed     their   supply   of  gasolene。     Naturally    they
  attracted   a crowd   of   curious   persons;  many  of   whom  had   never seen   an
  airship before。 Certainly few of them had ever seen one like Tom Swift's。
  The next day found them hovering over the Alps; where Tom hoped to
  be able to get the pictures of snow slides。 They went down to earth at a
  town near one of the big mountain ranges; and there made inquiries as to
  where would be the best location to look for big avalanches。 If they went
  but a few miles to the north; they were told; they would be in the desired
  region; and they departed for that vicinity。
  〃And now we've just got to take our time; and wait for an avalanche to
  happen;〃   remarked   Tom;   as   they   were   flying   along   over   the   mountain
  ranges。 〃As Mr。 Damon said; these things aren't made to order。 They just
  happen。〃
  For   three   days   they   sailed   in   and   out   over   the   great   snow…covered
  peaks of   the Alps。 They  did   not   go   high   up;  for   they  wanted   to   be   near
  earth when an avalanche would occur; so that near…view pictures could be
  secured。   Occasionally   they   saw   parties   of   mountain   climbers   ascending
  some   celebrated   peak;   and   for   want   of   something   better   to   photograph;
  Tom 〃snapped〃 the tourists。
  〃Well; I guess they're all out of avalanches this season;〃 remarked Ned
  one   afternoon;   when   they   had   circled   back   and   forth   over   a   mountain
  where; so it was said; the big snow slides were frequent。
  〃It does seem so;〃 agreed Tom。 〃Still; we're in no h