o n s l i d i ng
f . A i r
( 1)
( 2)
you.
( 3)
( 4)
TM 5-6675-322-14
Example
wet bulb temp
72
dry bulb temp
78
% relative humidity
74 %
(b) Percentage value of relative humidity is indicated by arrow pointer
center portion of the scale.
v e l o c i t y m e t e r.
Face into wind.
Hold meter in front of you in vertical position with scale side toward
Check that no part of your hand is blocking the bottom holes.
H e i g h t o f p i t h b a l l i n d i c a t e s v e l o c i t y . R e a d l e f t - h a n d s c a l e .
( 5 ) I f p i t h b a l l r e a c h e s t o p o f l e f t s c a l e , p l a c e f i n g e r o v e r o r i f i c e a nd
read velocity on right high speed scale.
9-45