TM 75053
ML312( )/TM
5. BRIEF FUNCTIONAL DESCRIPTION:
Balloon ML51 ( ) is a small (black) pilot balloon which
is used to determine the direction and speed of winds-aloft.
The ML51 ( ) may be used in early morning, at sunrise,
in late evening at sunset when the sky is overcast with
thick or thin clouds, or when there is a dense haze aloft.
The ML51 ( ) also may be used at night to determine the
height of clouds. Tracking of the balloon may be done
visually or with the aid of a theodolite to heights of 30,000
feet.
6. TECHNICAL CHARACTERISTICS:
Pilot.
Type _ _ __ _ _ _ _ _ _ _ _ _ _
Material
_ _ _ _ _ _ _ _ _ Neoprene.
Color
_ _ _ _ _ _ _ _ _ _ Black.
Weight
_ _ _ _ _ _ _ _ _ 30 g.
Free lift
_ _ _ _ _ _ _ _ 132
g.
Average rate of rise _ _ _ _ _ 600 fpm, 183 meters-
per-minute.
Dimensions
_ _ _ _ _ _ _ 1 7/8 in. long, 9/16 -in. dia.
Bursting altitude _ _ _ _ _ _ _ 30,000 ft.
7. MAJOR COMPONENT:
Balloon ML51( ).
8. SET, SYSTEM, FACILITY, AND CONFIGURATION
APPLICATIONS:
This equipment is used in a system with Meteorological
Station, Manual AN/TMQ4.
9. ADDITIONAL EQUIPMENT REQUIRED AND AUX-
ILIARY EQUIPMENT:
10. TOOLS AND TEST EQUIPMENT: None.
11. REFERENCE DATA AND LITERATURE:
TM 11666021812, 25P
_ _ _ _ AN/TMQ4
12. REPAIR PARTS SUPPORT CAPABILITY:
No density.
13. TRAINING REQUIREMENTS:
Operator MOS 93E20, 93F20.
14. TYPICAL BASIS OF ISSUE:
Figure 32. Pilot Balloon ML51 ( ).
15. PRICE DATA:
a. Major item
_ _ _ _ _ _ _ _
||content||
.211. NOMENCLATURE: Balloon ML51 ( ).
Expendable, non-
b. Repair parts (1-year cost based
repairable.
on 100 equipments).
2. TYPE CLASSIFICATION: Standard A.
16. ITEM REPLACED: None.
3. SECURITY REQUIREMENTS: Unclassified.
17. REMARKS:
4. PRIMARY USE OR CONCEPT OF EMPLOYMENT:
Issued as expendable item with Manual Meteorological
Used as an aid to determine the direction and speed of
Station AN/TMQ4.
winds-aloft.
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