19
Wind sPeed TABle · siTe selecTion
Bft.
m/sec
km/h
mph
knots
wind
land conditions
sea conditions
flying experience
0
0,0 - <0,3
0
0 - <1,2
0 - <1
calm
calm. smoke rises vertically.
smooth as glass.
not enough wind to fly kite.
1
0,3 - <1,6
1-5
1,2 - <4,6
1 - <4
light air
Wind motion visible in smoke.
Ripples without crests.
difficult to fly kite.
2
1,6 - <3,4
6-11
4,6 - <8,1
4 - <7
light breeze
Wind felt on exposed skin. leaves
rustle.
small wavelets. crests of glassy
appearance, not breaking.
Good for large kites or beginners.
3
3,4 - <5,5
12-19
8,1 - <12,7
7 - <11
Gentle wind
small flags fly.
Blattbewegung
large wavelets. crests begin to
break; scattered whitecaps.
ideal flying conditions.
4
5,5 - <8,0
20-28
12,7 - <18,4
11 - <16
moderate wind
Twigs toss, dust flies.
small waves.
ideal flying conditions.
5
8,0 - <10,8
29-38
18,4 - <25,3
16 - <22
Fresh wind
smaller trees sway.
moderate (1.2 m) longer waves.
some foam and spray.
Good for smaller kites or expe-
rienced flyers.
6
10,8 - <13,9
39-49
25,3 - <32,2
22 - <28
strong wind
large branches in motion.
Bewegung dicker Äste.
large waves with foam crests and
some spray.
experienced flyers only.
7
13,9 - <17,2
50-61
32,2 - <39,1
28 - <34
near gale
Whole trees in motion.
sea heaps up and foam begins to
streak.
very small kites and experienced
flyers.
8
17,2 - <20,8
62-74
39,1 - <47,2
34 - <41
Gale
Twigs broken from trees. cars veer
on road.
moderately high waves with
breaking crests forming spindrift.
streaks of foam.
dangerous winds.
9
20,8 - <24,5
75-88
47,2 - <55,2
41 - <48
strong gale
light structure damage.
High waves (6-7 m) with dense
foam. Wave crests start to roll over.
considerable spray.
do noT FlY!
danger!
Turbulent Wind
clean Wind
250m safe clearance
choose Your Flying site
Содержание Montana 5
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