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