Weather Forecasting

Balloon  Characteristics  (Sounding Balloons with Payload of 250 grams)

Ballooon Size
(grams)
200  300 350  600  800  1000
 Diameter
(ft. @ Launch)
 3.9 4.1 4.2  4.7 5.0 5.2
 Volume
(cu.ft. @ launch)
 31 36 39 54 65 73
 Rate of Ascent
(meter per min.)
320 320 320 320 320 320
 Diameter
(ft. @ burst)
10 13 14 20 23 26
 Burst Altitude
(x 1000 ft.)
70 82 85 102 107 111
 Free Lift
(grams)
510 560 585 870 970 1060
 Nozzle Lift
(grams)
760 810 835 1120 1220 1310


Balloon  Characteristics  (Sounding Balloons with Payload of 1050 grams)

 Balloon Size
(grams)
 1200 1500 2000 3000 
 Diameter
(ft. @ launch)
6.0 6.2 6.5 7.1
Volume
(cu.ft. @ release)
113 124 143 187
Rate of Ascent
(meters per min.)
320 320 320 320
Diameter
(ft. @ burst)
28 31 35 43
Burst Altitude
(x 1000 ft.)
109 112 117 125
Free Lift
(grams)
1190 1280 1420 1670
Nozzle Lift
(grams)
2240 2330 2470 2720
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