TEI-PD200

The TEI-PD200 is a turbodiesel aviation engine developed to meet the high power requirements of Medium Altitude Long Endurance (MALE) class unmanned aerial vehicles during takeoff and cruise phases. The engine features a turbodiesel architecture optimized for this class of platforms, offering high altitude capability and low specific fuel consumption. The TEI-PD200 engine continues flight operations with the Bayraktar TB3 unmanned aerial vehicle platform.

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The PD200 Turbodiesel Aviation Engine is a next-generation power unit developed by TEI to expand its PD170 family, delivering approximately 200 horsepower. According to Prof. Dr. Mahmut F. Akşit, General Manager of TEI, the engine was designed at Baykar’s request for use in TB-3 class unmanned aerial vehicles, has completed production, and has been delivered. Baykar successfully conducted its first flight tests with the platform integrated with the PD200. The PD200 is positioned within Türkiye’s UAS ecosystem as an optimized solution based on the experience gained from the PD170, with enhanced altitude capability, fuel efficiency, and durability.

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The TEI-PD200 is a four-cylinder in-line, 2.1-liter internal combustion engine capable of producing a maximum takeoff power of 197 HP (±2) and a maximum continuous power of 172 HP (±2). The engine is compatible with multiple fuels including JP-8, JET-A1, JP-5, and EN 590, and features a common rail fuel injection system. It delivers efficient performance within its class, with a specific fuel consumption of 207 g/kWh (±3) at sea level. The cooling system is water-cooled, and the engine has an operational life of 3,600 hours with a depot-level maintenance interval of 1,200 hours.

The electronic control architecture of the TEI-PD200 is based on the Redundant Engine Control System (FADEC), developed and programmed by TEI. The engine control system and alternator control software are certifiable to DO-178C DAL-C level. The electrical power output capability is 9 kW (2 × 4.5 kW). The engine is equipped with a gearbox compatible with both pusher and tractor configurations.

With a dry weight of 162 kg, the TEI-PD200 embodies a design approach aimed at achieving optimal weight-to-power performance for MALE class platforms. It was developed in accordance with civil aviation standards.

• Displacement: 2.1 L
• Engine configuration: In-line 4-cylinder
• Fuel delivery: Common rail
• Air intake: Two-stage series turbocharger
• Maximum takeoff power: 197 HP (±2)
• Maximum continuous power: 172 HP (±2)
• Dry weight: 162 kg
• Engine life: 3,600 hours
• Depot-level maintenance interval: 1,200 hours
• Cooling: Water-cooled
• Compatible fuels: JP-8, JET-A1, JP-5, EN 590
• Specific fuel consumption (sea level): 207 g/kWh (±3)
• Electrical power: 9 kW (2 × 4.5 kW)
• Gearbox: Compatible with pusher and tractor configurations
• Engine control: Redundant Engine Control System (FADEC)
• Control software: Certifiable to DO-178C DAL-C level (FADEC and alternator control software)

Air Intake System: The engine employs a two-stage series turbocharger system to maintain adequate performance even at high altitudes.

Altitude Capability: The engine’s critical altitude is 20,000 ft, with a maximum ceiling of 45,000 ft. Power output varies with altitude as follows:

• @20,000 ft: 170 HP
• @30,000 ft: 130 HP
• @40,000 ft: 90 HP