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32 Series

Product catalog summary

Overview: The document provides technical specifications and usage recommendations for the 32 Series air-cooled two-stroke engines, which are designed for light and ultralight aviation, hovercraft, gyros, and helicopters. These engines are noted for their high power-to-weight ratio, making them ideal for applications where weight is a critical factor.

Specifications:

Engine Type: Two-cylinder, two-stroke (inline)
Displacement: 625 cm³ (38.1 cu in)
Stroke: 69 mm (2.72 in)
Bore: 76 mm (2.99 in)
Max Performance: 40.4 kW (55 HP) at 5500 rpm
Max Torque: 72 Nm (52.8 ft.lb) at 5000 rpm
Weight: 31 kg (68.4 lb)
Dimensions: Height - 383 mm (15.07 in), Length - 377 mm (14.84 in), Width - 587 mm (23.11 in)
Starting Device: Recoil starter
Ignition System: CDI
Carburation: 2x slide carburetor (Dell Orto) or fuel injection
Cooling: Fan cooling

Options:

Dual ignition
Fuel injection
Belt reduction G 27 (1:1.8/1:2.0)
Gearbox G 50 (1:2.16/1:2.29/1:2.59/1:3.16/1:3.65)
Electric starter
Separate lubrication

Fuel and Running Direction:

Fuel Mixture: 1:50 with 2-stroke oil, minimum 95 octane (RON); 1:80-100 with BLUEMAX 2-stroke oil, minimum 95 octane
Running Direction: Counter-clockwise, view to output shaft

Performance: The engine offers a time between overhauls of 1000 hours at 75% power, indicating its durability and reliability for extended use.

Warnings: This engine is not certified for aircraft use and lacks the safety and durability testing required by aircraft standards. It is intended for uncertificated experimental aircraft or vehicles where engine failure does not pose a safety risk. Users assume all risks associated with its use.

Catalog excerpts

32 Series 65 HP Air Cooled 2-Stroke Ultimate power to weight ratio Ideal for light aviation, hovercraft, gyro or helicopters Ideally suited for light and ultralight aviation The 32 Series air cooled two-stroke engines o er the highest power-to-weight ratios available in the 65-horsepower market. Ideally suited for use in light and ultralight aviation, hovercraft, gyro and helicopters and all applications where weight could be an issue. almost This engine series o er a time between overhauls of 1000 hours at 75% power and is fit to take on any challenge in the future.

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32 Series TECHNICAL SPECIFICATION: TYPE: Two cylinder two stroke (inline) STARTING DEVICE: Recoil starter RUNNING DIRECTION: Counter-clockwise, view to output shaft CARBURATION: 2x slide carburetor (Dell Orto) FUEL MIXTURE: Mixture 1:50, 2-stroke-oil, IGNITION SYSTEM: CDI COOLING: Fan cooling — Dual ignition — Fuel injection — Belt reduction G 27 (1:1,8/1:2,0) — Gear box G 50 (1:2,16/1:2,29/1:2,59/1:3,16/1:3,65) — Electric starter — Separate lubrication This is not a certificated aircraft engine ! It has not received the safety and durability testings specified by aircraft...

Open the catalog to page 2

32 Series

32 Series

Catalog excerpts

All HIRTH ENGINES GMBH catalogs and technical brochures