4103

20,000 Missions
Worldwide

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For Extreme Environmental Conditions

The 41 Series air-cooled two-stroke engines are designed with advanced closed-loop control, delivering exceptional performance even in the most extreme environmental conditions.

Built on the foundation of the world-renowned 4103 engine, which has completed over 20,000 missions worldwide, the updated 41 Series integrates the latest advancements in engine technology. This high-performance propulsion system is specifically engineered to meet the rigorous demands of the unmanned aerial vehicle (UAV) market.

Equipped with automatic altitude and temperature compensation, the 41 Series ensures reliable starts and consistent operation across diverse environments, making it a trusted choice for UAVs operating in challenging conditions.

Join the thousands of successful missions powered by the 41 Series engine and elevate your UAV’s capabilities with proven performance and cutting-edge technology.

BASIC FACTS

Engine Type

Two Stroke Boxer

Cooling

Air Cooling

Measured Power

6,7 HP

Fuel Type

Petrol

OPTIONS

2 Exhaust Styles
Up to 500W starter/generator
Oil injection
Customization (e.g. Quality documentation, design, rotation direction,…)

TECHNICAL SPECIFICATION

Motor	4103
TYPE
Cylinder	Two-Stroke
Starting Device	Starter Generator
Running Direction	CW
Cooling	Air Cooled
Ignition	Single
Exhaust	Normal
FUEL
Fuel	Petrol
MEASUREMENTS		mm	in
Stroke		34,00	1,34
Bore		44,00	1,73
Length		253,65	9,99
Width		294,10	11,58
Height		287,20	11,31
WEIGHT		kg	lbs
Weight without exhaust		4,00	8,82
Weight Exhaust		0,53	1,18
PERFORMANCE	kW	HP	Nm
Power measured (full throttle)	4,97	6,76	7,19
Power measured (best point)	4,97	6,76	7,60
Specific fuel consumption @6500rpm		(g/kWh)	517,00
Specific fuel consumption @best point (70-80% load, 1/2 rated speed)		(g/kWh)	tbd
Speed		RPM	6500

POWER CHART

TECHNICAL DRAWINGS

REPOSITORY

Technical Documenation

Our free-of-charge repository of the documentation for this Engine family.

Technical Support System

Looking for spare parts ?

3507 Engine has Heavy Fuel capabilities

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CASE STUDY

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From our Sales Office in Austria, we proudly offer the finest European-made Engines to customers worldwide.