NCHF Ground School — One-PagerArea VI: Fundamentals of Flight / Aerodynamics · print-friendly
Quick-reference memory items — carry this to the cockpit.
One-Pager — Area VI: Fundamentals of Flight / Aerodynamics (Lessons 20–22)
Four forces & the controls (L20)
- Lift/weight/thrust/drag balanced via disc tilt and collective pitch; collective = power/height, cyclic = direction, pedals = heading/antitorque.
Translating tendency, dissymmetry & ETL (L21)
- Translating tendency: tail-rotor thrust drifts you sideways — correct with cyclic.
- Dissymmetry of lift equalized by blade flapping (advancing up, retreating down).
- ETL ~16–24 kt: rotor reaches clean air, gains efficiency, nose pitches up — anticipate with cyclic.
Density altitude & performance (L22)
- DA = pressure altitude corrected for temperature; rises with heat/altitude/humidity/low pressure.
- High DA = less power & thrust; compute hover/takeoff from POH Section 5 before flight; treat marginal OGE numbers as no-go.
✍️ Your aircraft (N-________) — fill in & confirm with your CFI
Key limit / speed:
Key limit / speed:
R44 POH section:
Look these up in your R44 POH and confirm with your CFI before flight — leave blank until verified.