Radio Settings Curves 1 Sylvain Marron Modèle Air Club du Mâconnais Friday, March 4th 2011

Content Stick mode Curves – Normal – Idle Up 1 – Idle Up 2 – Hold (Throttle Hold) Throttle curves for electric helis 2

Stick mode: Mode 1 Mode 2 Mode 1 / Mode 2 Throttle/Pitch Nick (Elevator) Roll (Aileron) Rudder (Yaw) Throttle/Pitch Nick (Elevator) Roll (Aileron) Rudder (Yaw) 3

Curves In RC heli Throttle and Pitch are managed on a single stick  Each stick position sets: Throttle rate Pitch rate  Throttle and Pitch "curves" programming. X axis: stick position (from 0 to 100%) Y axis: Throttle or Pitch rate 4

Normal Curves Takeoff / Hover Throttle/Pitch stick at lowest position - engine idles (for starting) - Pitch ≈ 0° Throttle/Pitch stick ↗ - Throttle ↗ - Pitch ↗ Stick centered - Throttle = 50% - Pitch = hovering Position (%)Throttle (%)Pitch (°)

Electric heli: Normal Throttle Curve For electric helis we use a different throttle curve which rises more quickly (having bigger slope) to speed up motor rpm. Position (%)Throttle (%)

Idle Up 1 Curves Speed To come down the helicopter Throttle/Pitch stick at lowest position - Negative Pitch (heli comes down) - Keep Throttle high Position (%)Throttle (%)Pitch (°)

Electric heli: Idle Up 1 Throttle Curve For electric helis we keep high rpm with a high throttle curve. Position (%)Throttle (%)

Idle Up 2 Curves 3D Inverted flight Stick at lowest position - Max negative Pitch - Throttle to 100% Stick at middle position - Pitch = 0° - Throttle = 50% to maintain rotor speed Position (%)Throttle (%)Pitch (°)

Electric heli: Idle Up 2 Throttle Curve For electric helis throttle remains very high and is nearly constant. Position (%)Throttle (%)

Hold (Throttle Hold) Curve Landing with engine in idle => no throttle curve Pitch curve only: Negative Pitch -> descent phase: speed up the rotor using relative wind Positive Pitch -> to slow down the heli just before to land Position (%)Pitch (°)