NO. 912 
RELEASE AND RECORDER RECORD 
a | dd Hild! | 
4 + ee reteeletarl ete terete ett Ta a b 4 Ll at He 
i | 
ALL av AH DA A We WM We Be WB 
4 | | H | 
1 | | 
the Toe a BE bupue ULE 
I= 
a 7 toe toto ot 
| a = i t LI 7 +H an | LL, 
| | a 
' | 7/0 8)0| 310 
; + 1 T T 1 ] B 
: man | | | | | 
| | | | i | I | 
al. Vly Wa . 
| if | yi \ 
INC. U.S.A. 
b. 
_cidely rounded appearance and indicat 
ATR ttt | 
TTT FT TT eects 
i ‘| | j i } | | 4 
T TH 7 | Tt ly TT 
|| Py rp | || | | 
| 
+f SAAAAGAGNABAAGAAORPETOAEAE TANGA ANOIORAGAUAARARRANONNAAUNODAARGNOATAE 
| | Ih. \>) 
| Wy in b | I 
| || 
Bo BOE eRe eee eae JOLT nao rt 
| LI 
AN NET BEBE eRe Eee 
Figure B4 - 3. Balloon Forced Down by Ice 
At the bursting point of the balloon or at the highest usable 
point of the record. When the bursting point occurs during a 
reference or a relative humidity contact, the evaluation of the 
flight will be terminated at the top of the last temperature con- 
tact. When all or part of-the last temperature trace has a de- 
es amarked increase in 
TTT ifamee 
| = 
ol 0 
4. 
Figure B4-4, Balloon Burst. At balloon burst the contact point may be 
> LoS) 
jarred to indicate slightly higher pressure. The true con- 
tact can be determined by extending a 10 ordinate per 
contact line through the last complete contact up to the 
level of balloon burst. 
FMH#3 
