Hamilton KNAKI X-WIND Manual De Instrucciones página 6

Operating instructions
Crosswind
The Khaki X-Wind integrates a drift – angle calcula-
tor, enabling pilots to accurately calculate and record
the crosswinds they will encounter on their planned
journey.
1. Position the red arrow of the upper interior rotating
bezel at 12 o'clock by adjusting with crown
9
Adjust the lower interior rotating bezel
adjusting with crown
E
2. Obtain wind speed and direction from control tower
or weather chart.
Ex. Wind speed: 40 mph
Wind direction: 70°
Indicate wind direction (70) in
the window with the upper
interior rotating bezel
adjusting with crown
D
3. Adjust the exterior rotating
bezel so that one tenth of
8
the speed of the aircraft is indi-
cated opposite the red arrow.
Ex. Aircraft speed:
180 mph – indicate 18.
4
All manuals and user guides at all-guides.com
D
to 0° by
0
.
by
9
.
4. From the geographical bearing, calculate the mag-
netic bearing of the aircraft:
The variation (Var) depends on the current location,
which can be determined from an aviation chart.
Ex. Geographical bearing: 30°
Variation (Var): 10°
Magnetic bearing: 30° + 10° = 40°
.
Tn: True North | Mn: Magnetic North | Var: Variation
If the variation (Var) is to the West, it is
added to the geographical bearing to
obtain the magnetic bearing.
Ex. 30° + 10° = 40°
5. Calculation of crosswind angle.
Ex. Wind direction: 70°
Magnetic bearing of aircraft: 40°
Crosswind angle: 70° – 40° = 30° (headwind)
70° – 40° = 30°
(Headwind)
If the variation (Var) is to the East, it is
subtracted from the geographical bear-
ing to obtain the magnetic bearing. Ex.
30° – 15° = 15°
180° – (330° - 220°) = 360° – (330° - 40°) =
70° (Tailwind) 70° (Headwind)
© HAMILTON 19/07/2013