North Country Heli FlightHELICOPTER GROUND SCHOOL · ACS-ALIGNED
Private (PPL-H) · Lesson 11

ACS Alignment

FAA-S-ACS-15 — Private Pilot, Rotorcraft–Helicopter · Area of Operation II. Preflight Procedures · Task: Engine Starting / Before-Takeoff Check
PA.II.C.K1 — start & rotor engagement PA.II.C.K2 — run-up & system checks PA.II.C.R1 — area clearing & fire risk

Engine Start, Rotor Engagement & Before-Takeoff Checks

From a cold cockpit to ready-for-takeoff — by the checklist, every time.

By the end of this lesson you can:

1 · Always the checklist, never memory

Starting a piston helicopter is a precise, sequenced task where order matters and a skipped step can damage the engine, starter, or drive system. The R44 POH Section 4 (Normal Procedures) is the authority; the flow below is for understanding, not a substitute for the printed checklist.

2 · The typical sequence (generic overview)

PhaseWhat's happening / why
Pre-startControls, fuel, circuit breakers, throttle, and switches set per checklist; “CLEAR!” called and area visually clear of people and FOD.
StartEngage the starter; engine fires and settles to idle. Confirm oil pressure rises promptly; watch for abnormal indications.
Clutch / rotor engagementEngage the clutch; the belt actuator tensions and the rotor slowly spins up. Monitor the clutch light and confirm rotor turns smoothly with no abnormal noise.
Warm-up & run-upAllow temperatures/pressures to stabilize; perform system checks (e.g., governor, hydraulics, magnetos/sprag, gauges in limits).
Before-takeoffFinal check: instruments green, controls free, governor on, hydraulics checked, area clear, briefing complete.
Your aircraft: exact switch positions, RPM targets, temperature/pressure limits, warm-up times, and the run-up check items are R44-specific — read and fly the R44 POH Section 4 checklist and Section 2 limitations. Do not adopt a number from a video or generic source.
✍️ 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.
✍️ 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.

3 · Watch: a complete R44 startup

Curated reference clip — “R44 Raven II Helicopter Complete Startup Procedures,” Stellicopter (YouTube). Instructional example only; always follow your aircraft's current POH checklist.

4 · Watch: start & shutdown flow

Curated reference clip — “Robinson R44 Startup & Shutdown Procedure,” Elite Helicopters Brisbane (YouTube). Shown for instructional context; verify each item against your POH.

5 · The checks that gate takeoff

Two checks deserve special attention before you lift: the governor (confirm it holds engine/rotor RPM in the green as collective changes) and the hydraulic system (the pre-takeoff check from Lesson 07 — confirm boost works and feel the unboosted forces). Add a clutch-light-out confirmation, gauges in limits, controls free and correct, and a clear area. Anything abnormal means shut down and investigate, not “watch it and go.”

6 · Reference sources

Use the authoritative references

📄 Robinson R44 POH — Section 4 Normal Procedures (Start / Run-up) 📄 FAA Helicopter Flying Handbook — ground operations & preflight
Risk management (the “Consider”): the dangerous moments here are rushing the start (hot/flooded start, low oil pressure ignored) and engaging the rotor without clearing the area. Protect against both with discipline: call “CLEAR,” watch oil pressure on every start, bring the rotor up smoothly while monitoring, and treat any abnormal gauge, light, or noise as a shutdown item.

7 · Knowledge check