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Wind Side of the CR-3 Step 1Align wind direction over the True Course Index (TC) Step 2Place Wind Dot up from centre Step 3Align True Track over the True Course Index Step 4Point True Airspeed to True Airspeed value Step 5View Crosswind under vertical line Step 6Read Crosswind on outside scale and view Wind Correction Angle aligned with Crosswind on inside scale Step 7Read wind Component under horizontal line

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Step 1 Align wind direction over the True Course Index (TC) Place wind direction over True Course Index. In this example, the wind direction is 050°.

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Step 2 Place Wind Dot up from centre Place Wind Dot up from centre. In this example, the wind strength is 20 knots.

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Step 3 Align True Track over the True Course Index Place True Track over True Course Index. In this example, the TT is 190°.

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Step 4 Point True Airspeed to True Airspeed value Place TAS to TAS value. In this example, the TAS is 108kts.

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Step 5 View Crosswind under vertical line Draw line vertically to x axis. In this example, the Left Crosswind is 13.

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Step 6 Read Crosswind on outside scale and view Wind Correction Angle aligned with Crosswind on inside scale Read Crosswind on outside scale and view WCA aligned with Crosswind on inside scale Always round to the nearest degree.

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Step 6 Read Crosswind on outside scale and view Wind Correction Angle aligned with Crosswind on inside scale In this example, the WCA is 7°E. Subtract Left Crosswind

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Step 7 Read wind Component under Horizontal line Draw line horizontally to y axis. In this example, the wind component is a tailwind of 16 knots. –Add tailwind –Subtract headwind

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This chart will assist you in applying the information from the flight computer. The numbers for the chart above will either be given or calculated from the flight computer. Lets try to complete the chart. Good Luck! Applying the Information From the Flight Computer

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GIVENWind= 05020kts Variation= 21°W Deviation= 2°E True Track= 190° True Airspeed=108kts Applying the Information From the Flight Computer 190° Fill in the True Track that is given.

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Applying the Information From the Flight Computer 190°7°E Calculate Wind Correction Angle from flight computer. GIVENWind= 05020kts Variation= 21°W Deviation= 2°E True Track= 190° True Airspeed=108kts

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Step 6 Read Crosswind on outside scale and view Wind Correction Angle aligned with Crosswind on inside scale In this example, the WCA is 7°E.

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Applying the Information From the Flight Computer 7°E183° Calculate True Heading by +/- WCA 190° GIVENWind= 05020kts Variation= 21°W Deviation= 2°E True Track= 190° True Airspeed=108kts

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Applying the Information From the Flight Computer 7°E183°21°W Fill in Variation that is given. 190° GIVENWind= 05020kts Variation= 21°W Deviation= 2°E True Track= 190° True Airspeed=108kts

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Applying the Information From the Flight Computer 7°E183°21°W204° Calculate Magnetic Heading by +/- Variation. 190° GIVENWind= 05020kts Variation= 21°W Deviation= 2°E True Track= 190° True Airspeed=108kts

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7°E183°21°W204°2°E Applying the Information From the Flight Computer Fill in Deviation that is given. 190° GIVENWind= 05020kts Variation= 21°W Deviation= 2°E True Track= 190° True Airspeed=108kts

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Applying the Information From the Flight Computer 7°E183°21°W204°2°E202° Calculate Compass Heading by +/- Deviation. 190° GIVENWind= 05020kts Variation= 21°W Deviation= 2°E True Track= 190° True Airspeed=108kts

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Applying the Information From the Flight Computer 7°E183°21°W204°2°E202° Calculate Ground Speed from flight computer. 190° GIVENWind= 05020kts Variation= 21°W Deviation= 2°E True Track= 190° True Airspeed=108kts

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Step 7 Read Wind Component under horizontal line Draw line horizontally to y axis. In this example, the wind component is a tailwind of 16 knots. –Add tailwind –Subtract headwind

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Applying the Information From the Flight Computer 7°E183°21°W204°2°E202°124kts ** TAS +/- Headwind or Tailwind = Ground Speed. ** 190° GIVENWind= 05020kts Variation= 21°W Deviation= 2°E True Track= 190° True Airspeed=108kts

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To view procedure step by step again click the flight computer. To advance to another example click the next slide button. Wind Side of the CR-3

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GIVENWind= 35615kts Variation= 14°W Deviation= 1°W True Track= 44° True Airspeed=124kts Applying the Information From the Flight Computer Lets try another example. 44°

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Applying the Information From the Flight Computer 44° GIVENWind= 35615kts Variation= 14°W Deviation= 1°W True Track= 44° True Airspeed=124kts Try to calculate WCA before advancing.

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Step 1 Align wind direction over the True Course Index Place wind direction over True Course Index. In this example, the wind direction is 356°.

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Step 2 Place Wind Dot up from centre Place Wind Dot up from centre. In this example, the wind strength is 15 knots.

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Step 3 Align True Track over the True Course Index Place True Track over True Course Index. In this example, the TT is 44°.

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Step 4 Point True Airspeed to True Airspeed value Place TAS to TAS value. In this example, the TAS is 124°.

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Step 5 View Crosswind under vertical line Draw line vertically to x axis. In this example, the Left Crosswind is 10.

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Step 6 Read Crosswind on outside scale and view Wind Correction Angle aligned with Crosswind on inside scale Read Crosswind on outside scale and view WCA aligned with Crosswind on inside scale Always round to the nearest degree.

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Step 6 Read Crosswind on outside scale and view Wind Correction Angle aligned with Crosswind on inside scale In this example, the WCA is 5°E. Subtract Left Crosswind

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Applying the Information From the Flight Computer 5°E39°14°W53°1°W54° Lets try another example. 44° GIVENWind= 35615kts Variation= 14°W Deviation= 1°W True Track= 44° True Airspeed=124kts

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Applying the Information From the Flight Computer GIVENWind= 35615kts Variation= 14°W Deviation= 1°W True Track= 44° True Airspeed=124kts Try to calculate GS before advancing. 5°E39°14°W53°1°W54°44°

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Step 7 Read wind Component under horizontal line Draw line horizontally to y axis. In this example, the wind component is a headwind of 10 knots.

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Applying the Information From the Flight Computer 6°E38°14°W52°1°W53° Lets try another example. 44°114kts GIVENWind= 35615kts Variation= 14°W Deviation= 1°W True Track= 44° True Airspeed=124kts

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Congratulations! You have completed the Wind Side of the CR-3 or E6-B Flight Computer lesson. Of course, this section always available to you for future reference if required. To return to main lesson click terminate.

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