ACS Alignment

FAA-S-ACS-15 — Private Pilot, Rotorcraft–Helicopter · Area of Operation VII. Performance Maneuvers · Task: Rapid Deceleration (Quick Stop)

PA.VII.A.K1 — coordination of all controls PA.VII.A.K2 — RPM & altitude control in the maneuver PA.VII.A.R1 — risk: tail/ground strike, low RPM PA.VII.A.S1 — coordinated rapid deceleration

Rapid Deceleration (Quick Stop)

A smooth, coordinated maneuver to slow quickly and stop in a hover.

By the end of this lesson you can:

Describe the coordinated control inputs in a rapid deceleration.
Maintain rotor RPM and a safe height throughout the maneuver.
Terminate to a stable hover under control.
Explain the tail-strike and low-rotor-RPM hazards and how to avoid them.

1 · The maneuver

Despite the name, a quick stop is flown smoothly and with coordination. From a low, level pass at a moderate airspeed, apply aft cyclic to raise the nose and decelerate while lowering collective to prevent ballooning, and use pedal to keep the nose straight as torque changes. As the helicopter slows, lead the controls back toward a hover — collective comes up to arrest the descent and cyclic returns to level. The whole maneuver is a blend of all three controls and the throttle/governor holding RPM.

2 · Why it's taught

The quick stop builds the coordination and energy-management feel you need everywhere — approaches, confined areas, and the flare in an autorotation. Entry height and airspeed are set conservatively so there's room to recover; follow the numbers in your training standard.

3 · Watch

Curated reference clip — “How To Stop a Helicopter (Quickly) — Rapid Deceleration / Quick Stop,” Helicopter Training Videos (YouTube). Embedded with the creator's player; we don't host or alter it.

4 · Reference sources

Use the authoritative references

📄 FAA Helicopter Flying Handbook, Ch. 9 — Basic Flight Maneuvers (rapid deceleration) 📄 FAA HFH, Ch. 10 — Advanced Flight Maneuvers

Your aircraft: keep RPM and all limits within the Robinson R44 POH, Section 2 (Limitations) ranges throughout. Entry height/airspeed should follow your NCHF training standard.

✍️ Fill in for the aircraft you fly (N-________)

Value / limit:

R44 POH section & page:

Leave blank until you look it up in your R44 POH (see the reference above) and confirm it with your CFI. Aircraft-specific numbers vary with weight & conditions — don’t guess.

Risk management (the “Consider”): two hazards define this maneuver: a tail-rotor or tail-boom strike from too much nose-up too low, and low rotor RPM or ballooning from mismanaging collective. Keep the nose-up attitude reasonable for your height, lower collective as you raise the nose, watch RPM, and never let the maneuver get ahead of you near the ground.