Product Overview
The GTF550 is a four-cylinder horizontally opposed 2-stroke air-cooled gasoline engine developed by Shandong Zhongtian Power Technology Co., Ltd. It is purpose-engineered for commercial UAVs and ultra-light experimental aircraft.
With its classic optimized structural design, the engine features low vibration, high power output, light weight and long service life. Its rapid throttle response delivers perfectly linear power delivery, providing stable and abundant propulsion for aircraft platforms and bringing reliable performance for various commercial aviation missions.
Core Design & Performance Features
1. Horizontally-Opposed 4-Cylinder Architecture with Ultra-Low Vibration
The GTF550 adopts a horizontally opposed 4-cylinder layout that achieves excellent inherent mechanical balance, greatly reducing vibration during operation. This low-vibration characteristic is especially valuable for precision applications such as aerial surveying and imaging. It covers a wide practical speed range from 800rpm to 7000rpm, delivering a peak output of 45HP at 6500rpm and a maximum torque of 42N·m at 5000rpm, with a maximum tensile force of 180kg to support heavy-payload take-off and steady cruise flight.
2. Advanced ACDI Ignition & Precision-Machined Powertrain
The engine is equipped with a custom ACDI (Automatic timing angle Capacitor Discharge Ignition) dual-cylinder synchronous ignition system, matched with a single iridium BPMR6A spark plug for precise, reliable ignition and highly efficient combustion. The crankshaft is precision forged and treated with liquid nitrogen process for enhanced structural strength, and the connecting rod is CNC machined with needle roller bearings, ensuring smooth operation and excellent load-bearing capacity under long-term high-speed operation.
3. Ni-SiC Coated Cylinder Liner for Extended Service Life
To improve wear resistance and prolong service life, the cylinder liner is treated with advanced Ni-SiC coating technology, reaching a rated service life of 500 hours. Combined with high-quality bearings throughout the powertrain, the engine maintains stable performance after long hours of operation, effectively reducing maintenance frequency and long-term operating costs for commercial drone fleets.
4. Integrated Generator & One-Key Electric Start
The GTF550 integrates a built-in generator that delivers 1000W power output at 5400rpm, which can directly supply power for flight control systems, sensors, mission payloads and other on-board electronic devices without an additional independent power module. It also supports one-key electric start, which simplifies ground preparation procedures and improves operational efficiency.
Full Technical Specifications
| Technical Property Item | Specification Value |
|---|---|
| Product Model | GTF550 |
| Engine Type | 4-Cylinder Horizontally-Opposed 2-Stroke Air-Cooled Gasoline Engine |
| Total Displacement | 550cc (137.5cc per cylinder) |
| Bore | 58mm |
| Stroke | 52mm |
| Practical RPM Range | 800 – 7000 rpm |
| Maximum Output | 45HP @ 6500 rpm |
| Maximum Torque | 42 N·m @ 5000 rpm |
| Maximum Tensile Force | 180 kg |
| Fuel Consumption Rate | 523 g/kW·h |
| Dry Engine Weight | 12 kg |
| Ignition System | ACDI Automatic Timing Capacitor Discharge Ignition |
| Spark Plug | Single Iridium BPMR6A |
| Starting Mode | One-key electric start |
| Generator Output | 1000W @ 5400 rpm |
| Cylinder Liner Treatment | Ni-SiC coating, 500h rated service life |
| Crankshaft | Precision forged, liquid nitrogen treated |
| Connecting Rod | CNC machined needle roller bearing type |
| Fuel Type | 95# unleaded gasoline + fully synthetic 2T lubricant |
| Gasoline to Lubricant Ratio | 40 : 1 |
Typical Applications
- Heavy-lift logistics and cargo delivery UAVs
- High-precision aerial surveying and mapping drones
- Ultra-light experimental general aviation aircraft
- Large-scale agricultural plant protection drones
- Industrial inspection and environmental monitoring drone platforms
Packing & Shipping
We provide professional international shipping solutions to ensure safe and intact delivery of your order worldwide. Available shipping carriers include:
- EMS
- FedEx Express
- DHL
- UPS
Reinforced shock-absorbing packaging is applied to protect the precision engine and its accessories from damage during long-distance transportation. For detailed shipping quotes, lead times and custom packaging requirements, please contact our sales team directly.
Frequently Asked Questions (FAQ)
Q1: What fuel does this UAV gasoline engine require, and what is the mixing ratio?
A: This UAV gasoline engine uses 95# unleaded gasoline mixed with fully synthetic 2-stroke lubricating oil. The recommended mixing ratio of gasoline to lubricant is 40:1. Using qualified fully synthetic 2T lubricating oil ensures optimal lubrication of internal components and helps achieve the rated 500-hour service life.
Q2: Can this drone gasoline engine supply power for on-board electronic devices?
A: Yes. This drone gasoline engine has a built-in integrated generator that outputs 1000W of power at 5400rpm. It can directly power flight control systems, mission payloads, sensors and other on-board electronic equipment, eliminating the need for an additional independent power supply module.
