TECHNICAL SPECIFIC • PILOT OPERATING HANDBOOK

Piper PA-28-181 Archer III DX

Technical ground school manual for the Continental / Technify TAE 125-02-114 turbo-diesel engine with MT-Propeller MTV-6-A/190-69. In-depth analysis of the 28V/5-battery electrical architecture, 3-way thermostat cooling, liquid-heated cabin defrost, and common-rail fuel return circulation.

ENGINETAE 125-02-114

PROPELLERMTV-6-A/190-69

FUEL GRADEJET A-1 / Diesel

Airspeed Limitations & Interactive V-Speed Palette (KIAS at MTOW 2550 lbs)

Click any V-speed card to inspect its exact POH operational definition and flight safety parameters.

Selected: Vy = 76 KIAS

Vy— 76 KIAS

Best rate of climb speed (maximum altitude in minimum time)

AIRSPEED ARCWhite Arc (Flap Range)

COCKPIT SYSTEMS LAB • INTERACTIVE COLD & DARK SIMULATOR

Dedicated PA-28 Archer DX Cockpit & Systems Simulator

Step into the virtual cockpit with an overhead switchboard starting in Cold & Dark mode. Practice engine startup, energize 28V buses, simulate electrical failures (ALT INOP, Dual Electrical Failure), work through step-by-step POH emergency checklists with interactive buttons, and explore animated coolant and common-rail fuel flows.

Launch PA-28 Simulator

Interactive Aircraft Systems Ground School

POH Systems Architecture

TAE 125-02-114 (Thielert TAE 125-02-114 / Centurion 2.0S)

Technify Motors GmbH (Continental Aerospace Technologies)

155 HP / 114 kW

In-line 4-cylinder, 4-stroke, liquid-cooled, turbocharged diesel engine with DOHC, direct fuel injection and common-rail technology. Operates on an efficient compression-ignition cycle (18:1 compression ratio). Unlike legacy AVGAS engines, it features no magnetos, no spark plugs, no carburetor, no mixture control, and no propeller lever.

Engine Physical Characteristics

Displacement:1991 cm³ (1.99 Liters / 121.5 cu in)

Max Takeoff Power:114 kW (155 HP) at 2300 Propeller RPM (100% Load)

Max Crankshaft RPM:3890 RPM (crankshaft maximum speed)

Gearbox Ratio:i = 1.69 (Integral reduction gearbox reducing 3890 crankshaft RPM down to 2300 propeller RPM, equipped with mechanical torsional vibration damper and overload release clutch)

Cruise Settings:Max Cruise: 85% Load | Economic Cruise: 70% Load

MT-Propeller MTV-6-A/190-69

• Model: MTV-6-A/190-69 (MT-Propeller Entwicklung GmbH)

• Blades & Diameter: 3 blades, 1.90 m (74.8 inches)

• Construction: High-strength wood-composite core wrapped in fiber-reinforced composite with bonded stainless steel leading-edge erosion sheath

• Pitch Governing: Variable-pitch, constant-speed propeller governed electro-hydraulically by FADEC using gearbox engine oil pressure

Oil pressure drives blades toward low pitch / high RPM (feathering spring & counterweights drive blades toward high pitch / low RPM in absence of oil pressure)

DGCA Viva Spotlight:Cold starts use 4 electric glow plugs. The reduction gearbox (i = 1.69) ensures the propeller turns at a quiet, aerodynamically optimal 2300 RPM while the diesel engine turns at 3890 RPM.

Critical POH Emergency Checklists & Memory Items

Engine Failure In-Flight (Glide & Relight Drill)

1. Airspeed: Establish Best Glide immediately — 73 KIAS (clean)
2. Single Power Lever: Retard to approx 50%
3. Fuel Selector Valve: Switch to fuller wing tank
4. Electric Fuel Pump: ON
5. FADEC Test Knob: Depress for 2 seconds to force ECU channel reset
6. Engine Master / Starter: Engage starter key if propeller has windmilled to stop
7. If relight unsuccessful below 1000 ft AGL: Prepare for forced landing; Flaps 40°; Master OFF before touchdown

Alternator Failure (ALT Warning Light Active)

1. Check Alternator Circuit Breaker: In
2. Alternator Switch: Cycle OFF, wait 5 seconds, switch ON
3. If reset fails: Shed non-essential electrical loads (Avionics Bus 2, Pitot Heat if VMC, Cabin lights)
4. Verify FADEC Backup Battery: Connected / Armed
5. Divert and land within 30 to 40 minutes (Battery endurance limit)

Dual FADEC Warning (FADEC A & B Illuminated)

1. Maintain control of aircraft: Pitch for 73 KIAS
2. Do NOT make rapid Single Power Lever adjustments
3. Land as soon as possible: Both redundant channels impaired
4. Select nearest suitable aerodrome or forced landing area immediately