Navigation — PPL(H)

The Navigation exam is identical for PPL(A) and PPL(H). Dead reckoning, variation, deviation, VOR, NDB, and the triangle of velocities apply the same way to helicopters. However, helicopter operations involve some practical differences worth knowing for the skills test and real flying.

Helicopters typically cruise between 70 and 120 knots at lower altitudes than fixed-wing training aircraft. This affects navigation in several practical ways:

• Slower cruise speed: timing is more critical — small speed variations create larger distance errors.
• Lower altitude: features at distance can be harder to identify due to limited horizon.
• Flexibility: ability to slow to a hover or land almost anywhere aids position fixing in doubt.
• Wind effect: at low speed, crosswind creates proportionally more drift — accurate wind assessment is critical.
• VOR/NDB range: at lower altitudes, reception range is reduced compared to a fixed-wing at 3,000+ ft.

• At low altitude, the effective horizon is close — plan to use ground features within 2–3 nm.
• Roads, rivers, and railways are highly reliable low-level features.
• Town shapes and coastlines work well; individual buildings are less useful at speed.
• Height above ground varies constantly — know your terrain clearance at all times.
• VFR chart contours and spot heights: know the highest obstacle along each leg.