3507

The Beat of an Unmanned Heart

The Beat of an
Unmanned
Heart

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Performance and Reliability

The 3507 Heavy Fuel Engine is a water-cooled, reed valve-controlled, 2-cylinder inline, 2-stroke engine featuring advanced air-assisted direct injection.

This high-performance liquid-cooled engine delivers an exceptional power-to-weight ratio and an extended operational range in even the most challenging conditions. The 3507 Heavy Fuel Engine is fully NATO-compliant and designed for maximum versatility, making it a superior choice for maritime applications, military operations, and civilian machinery.

Renowned for its outstanding durability and reliability, the 3507 boasts a time between overhauls (TBO) of 1,000 hours, ensuring long-term efficiency and performance in demanding environments.

Ready to elevate your system’s capabilities? Discover the unmatched potential of the 3507 Heavy Fuel Engine today.

BASIC FACTS

Engine Type

Two Stroke Inline

Cooling

Water Cooling

Measured Power

57 HP

Fuel Type

Kerosene

OPTIONS

Gear box G 50 (1:2.16/1:2.29/1:2.59/1:3.16/1:3.65)
Integrated starter / generator 1-3kW / 28V
Electronic throttle control via integrated servo
Heavy Fuel capability

TECHNICAL SPECIFICATION

Motor	3507-01M
TYPE
Cylinder	Two-Stroke
Starting Device	Electrical starter (01M) Starter Generator (02M)
Running Direction	CW
Cooling	Water cooled
Ignition	Single
Exhaust	Normal
FUEL
Fuel	Kerosene
MEASUREMENTS		mm	in
Stroke		69,00	2,72
Bore		76,00	2,99
Length		481,00	18,94
Width		453,00	17,83
Height		443,00	17,44
WEIGHT		kg	lbs
Weight without exhaust		33,50	73,85
Weight Exhaust		2,50	5,51
PERFORMANCE	kW	HP	Nm
Power measured (full throttle)	42,38	57,64	68,49
Power measured (best point)	42,38	57,64	68,49
Specific fuel consumption @6500rpm		(g/kWh)	545,00
Specific fuel consumption @best point (70-80% load, 1/2 rated speed)		(g/kWh)	479,00
Speed		RPM	6500

POWER CHART

TECHNICAL DRAWINGS

ENGINE GALLERY

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

Hirth Engines has been a pioneer of the two-stroke engine for over 60 years, with a track record of more than 30 years in the UAV sector. To meet the requirements UMS SKELDAR had set it, Hirth needed to design an engine no other manufacturer could offer at the time.

CASE STUDY

Our Engines are available through our partners.

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