SERIES

3503

Max Power, Minimum Weight.

Max Power,
Minimum Weight.

Maximum power-to-weight ratio available.

The 35 Series liquid-cooled two-stroke engines deliver unmatched power-to-weight ratios in the 70-horsepower category.

They are the perfect choice for light and ultralight aviation, hovercraft, gyrocopters, helicopters, and any application where minimizing weight is crucial.

With a time between overhauls of 1,000 hours at 75% power, this engine series is built to handle the demands of today while being ready for the challenges of tomorrow.

BASIC FACTS
  • 70 HP
  • Liquid Cooled
  • 2-Stroke
  • Highest power to weight ratio
  • Perfect for light aviation, hovercraft, gyro or helicopters
Motor3503E

TYPE

CylinderTwo-Stroke
Starting DeviceElectrical starter
Running DirectionCW
CoolingWater cooled
IgnitionSingle
ExhaustNormal

FUEL

FuelPetrol

MEASUREMENTS

mmin
Stroke69,002,72
Bore76,002,99
Length456,0017,95
Width396,0015,59
Height411,0016,18

WEIGHT

kglbs
Weight without exhaust33,5073,85
Weight Exhaust2,505,51

PERFORMANCE

kWHPNm
Power measured (full throttle)51,6770,2773,30
Power measured (best point)51,6770,2773,30
Specific fuel consumption @6500rpm(g/kWh)436,43
Specific fuel consumption
@best point (70-80% load, 1/2 rated speed)
(g/kWh)436,43
SpeedRPM6700
TECHNICAL SPECIFICATION
ENGINE GALLERY
REPOSITORY

Technical Documenation

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

Our Engines are available through our partners.

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

CONTACT US
Mapa

Find our partner close to Your location:

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

Hirth Global Sales GmbH
Tower street 3, Office Park 4, Top A15
A-1300 Vienna International Airport
Austria

HIRTH ENGINES IN numbers

0
Engines sold across almost of the 100 Year History of the company.
0
Flying hours of the 42 Heavy Fuel Series Engines Fleet
Certificates
EASA Type Certificate ASTM Compliance DOA / POA ISO

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