DICTIONARY OF AVIATION 37
inflammablezair balloon, a balloon whose gasbag is fild with inflammable air, that is, with hydrogen gas; an air* balloon (sense 2} ; a hydrogen-balloon.
internal balloon, a subsidiary balloon, inside of the main gasbag; a ballonet.
locomotive balloon, a balloon which .is capable of loco- motion or movement from place to place; a dirigible bal- loon.
luminous balloon, a balloon which is renderd luminous at night by being artificially lighted, designed for signal- ling at night.
manned balloon, see under manned.
nonzlifting balloon, see under nonzlifting.
paper balloon, a balloon made of paper, such as one of the small hot-air balloons used in fireworks.
parachute balloon, a balloon fitted with a parachute apparatus.
rarifiedtair balloon, a balloon or aerostat in mhich the lifting-power is due to the rarifaction of the air in a hollow receptacle; a form of rigid balloon designed to be sustaind in the atmosfere by means of a partial vacuum.
selfzregistering balloon, a balloon carrying self-registering meteorolegic instruments, sent up in investigations of the atmosfere; a registration-balloon; a recording-balloon; an explormg-balloon ; a sounding-balloon.
spherical balloon, a balloon whose gasbag is sfencal in shape; an ordinary globular or pear-shaped balloon.
steering balloon, a balloon which is capable of being steerd; a steerable balloon; a dirigible. balloon ba'loun v.
1. tr. carry up or transport in, or as in, a balloon.
2. intr. make an ascent in a balloon or dirigible; make a series of balloon-trjps or exhibitions.
balloon-accident b9'}oun,aeksi-dnt . an accident to a bal- loon; a mishap to an aeronaut while making a balloon-tjip.
balloonacy ba'luu-na-si n. lunacy about balloons; mania for ballooning; balloonomania.
balloon- announcement ba'luun^nauns-mant n. an an- nouncement of a balloon-ascent; a notis that a balloon-as- cension is about to be made.
balloon-ascension ba'toun-a^enjan n. an ascension made by a balloon ; a balloon-ascent.
balloon-ascent b9'luun-3,sent n. an ascent made by a bal- loon; a balloon-ascension.
balloonatic ba'lung-tik n. a lunatic about balloons; one gone crazy over ballooning; one who is balloon^mad.