The 42 Series air-cooled two-stroke engines are the ultimate solution for UAV propulsion systems, offering advanced closed-loop control for optimized performance in extreme environmental conditions.
Built on Hirth’s globally trusted engine design—proven in countless UAV missions—the updated 42 Series integrates the latest in UAV engine technology, delivering a high-performance propulsion system that exceeds industry standards.
Engineered for reliability, the 42 Series features automatic altitude and temperature compensation, ensuring consistent operation even in harsh environments. With its lightweight construction and unmatched power-to-weight ratio, it is the ideal choice for unmanned aerial vehicles requiring high-performance engines.
Ready to enhance your UAV’s capabilities? Discover how the 42 Series can redefine performance in challenging conditions.
Motor | 4201 | ||
TYPE | |||
Cylinder | Two-Stroke | ||
Starting Device | Starter Generator | ||
Running Direction | CCW | ||
Cooling | Air Cooled | ||
Ignition | Single | ||
Exhaust | Normal | ||
FUEL | |||
Fuel | Petrol | ||
MEASUREMENTS | mm | in |
|
Stroke | 40,00 | 1,57 | |
Bore | 54,00 | 2,13 | |
Length | 214,50 | 8,44 | |
Width | 339,80 | 13,38 | |
Height | 239,70 | 9,44 | |
WEIGHT | kg | lbs | |
Weight without exhaust | 7,14 | 15,74 | |
Weight Exhaust | 1,15 | 2,54 | |
PERFORMANCE | kW | HP | Nm |
Power measured (full throttle) | 10,14 | 13,60 | 14,90 |
Power measured (best point) | 10,14 | 13,60 | 15,50 |
Specific fuel consumption @6500rpm | (g/kWh) | 482,83 | |
Specific fuel consumption @best point (70-80% load, 1/2 rated speed) | (g/kWh) | 434,79 | |
Speed | RPM | 6500 |
Our free-of-charge repository of the documentation for this Engine family.
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CASE STUDYFrom our Sales Office in Austria, we proudly offer the finest European-made Engines to customers worldwide.
CONTACT USHirth Global Sales GmbH
Tower street 3, Office Park 4, Top A15
A-1300 Vienna International Airport
Austria
Hirth Global Sales GmbH
Tower street 3, Office Park 4, Top A15
A-1300 Vienna International Airport
Austria
Hirth Global Sales GmbH
Tower street 3, Office Park 4, Top A15
A-1300 Vienna International Airport
Austria
Hirth Global Sales GmbH
Tower street 3, Office Park 4, Top A15
A-1300 Vienna International Airport
Austria
Hirth Global Sales GmbH
Tower street 3, Office Park 4, Top A15
A-1300 Vienna International Airport
Austria
Hirth Global Sales GmbH
Tower street 3, Office Park 4, Top A15
A-1300 Vienna International Airport
Austria
Hirth Global Sales GmbH
Tower street 3, Office Park 4, Top A15
A-1300 Vienna International Airport
Austria
Discover how professionals around the world rely on Hirth’s advanced propulsion systems for outstanding performance, cutting-edge innovation, and proven reliability. Hear their stories and see why they choose Hirth for their most demanding missions!
CUSTOMER'S STORIESHirth Engines is globally recognized for its innovative 2-stroke engines, offering unmatched engineering solutions and industry-leading performance. Known for precision and reliability,
© 2023 HIRTH ENGINES GMBH. HIRTH ENGINES® IS A REGISTERED TRADEMARK OF THE UMS AERO GROUP.
Hirth Engines is globally recognized for its innovative 2-stroke engines, offering unmatched engineering solutions and industry-leading performance. Known for precision and reliability,
© 2023 HIRTH ENGINES GMBH. HIRTH ENGINES® IS A REGISTERED TRADEMARK OF THE UMS AERO GROUP.