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VFR Navigation 1-in-60 Rule & Track Error Calculations

FAA Ref: FAA-S-ACS-6C Area VI Task A (Pilotage and Dead Reckoning)

Scenario & Physics Summary

Calculating Track Error Angle (TE) and Closing Angle (CA) to regain planned track using mental arithmetic.

Interactive 3D Visual Plates & Scenario Media

VFR Navigation 1-in-60 Rule & Track Error Calculations Plate 1

Plate 1: VFR Navigation 1-in-60 Rule & Track Error Calculations

VFR Navigation 1-in-60 Rule & Track Error Calculations Plate 2

Plate 2: VFR Navigation 1-in-60 Rule & Track Error Calculations

VFR Navigation 1-in-60 Rule & Track Error Calculations Plate 3

Plate 3: VFR Navigation 1-in-60 Rule & Track Error Calculations

VFR Navigation 1-in-60 Rule & Track Error Calculations Plate 4

Plate 4: VFR Navigation 1-in-60 Rule & Track Error Calculations

Aerodynamic & Operational Physics

Mathematical principle: 1 NM off track at 60 NM distance flown equals 1° Track Error Angle (TE = (Distance Off / Distance Flown) × 60).
Closing Angle to destination: CA = (Distance Off / Distance Along) × 60.
Total Heading Correction to intercept destination = Track Error Angle + Closing Angle.

FAA Exam Gotcha Alert

FAA Exam Trap: Remember to ADD TE and CA together to alter heading to hit destination, or double TE for equal distance leg interception.

Frequently Asked Questions & Exam Explanations

What is the 1-in-60 rule formula?

Track Error Angle (degrees) = (Distance Off Track / Distance Flown) × 60.

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