HUMMEL VW Converted Aircraft Engines
  • HUMMEL VW Converted Aircraft Engines

HUMMEL VW Converted Aircraft Engines SKU: HML-ENG-AERO

The Hummel Non-Certified aircraft engines include 4-stroke two or four-cylinder opposed direct drive, air cooled engines of different power outputs based on conversions of the original VW engine. The original Hummel conversion has been refined over time, allowing larger displacement and the options of NiCom aluminum cylinders, dual ignition, alternator and electric start. The aluminum NiCom cylinders come as standard with 2-cylinder 45 hp engine and as option for the other 2-cylinder and 4-cylinder engines.

All engines feature a clockwise direction of rotation (facing propeller). No TBO has been set by the manufacturer.

2-cylinder engines are offered in displacements of 840 to 1200 cc with rated horsepower from 28 to 45 hp. Engine weight for the 2-cylinder engines varies from 81 to 103 lbs. 

Offered options (supplied with the engine at additional cost) include a new case, battery ignition, dual ignition, bed, radial or mosler mounting, aluminum NiCom cylinders (for 28/32/37 hp engines), starter and alternator.

These engines power Hummelbird, Ultra Cruiser and other experimental amateur built and ultralight aircraft. 

while the respective horsepower for the 4-cylinder engines is between 50 and 85 hp.

4-cylinder engines are offered in displacements of 1600 to 2400 cc with rated horsepower from 50 to 85 hp. Compression ratio: 7.6- 8 to 1. Engine weight for the 4-cylinder engines varies from 137 to 167 lbs. 

They are based on Type 1 VW crankcase with slick magneto, new case  and hand start and feature pressure lubrication, magneto primary, fixed electronic secondary ignition, 11.32 Amps generator, geared 12v starter and automotive style or shielded aircraft magneto system spark plugs. Different options are offered depending on the selected engine which can be supplied with the engine at additional cost. They include starter, alternator, accessory case, dual ignition and aluminum NiCom cylinders.

The four-cylinder engines have been used as powerplant for aircraft designs like the Sonerai, Sonex, Ultracruiser Plus, Aerosport Quail, Avid Flyer, Corby Starlet and others.

More information are included in the Product Description section.

Mfr. P/N & Title
Other Info

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2 2.5% Up to €368.75

2 and 4-Cylinder VW Conversion Non Certified Engines for use in Homebuilts and Light Sport Aircraft. Options offered according to selected engine.

Hummel 4-Sroke / 2-Cylinder Engines

Engine configuration: 2-cylinder horizontally opposed direct drive

Direction of Rotation: Clockwise facing propeller

Cooling system: Air

Lubrication system: Pressure

28 hp    88 mm bore x 69 mm stroke   840 cc  85 to 103 lbs.

Options – New Case , Battery ignition, Dual ignition, Bed, Radial or Mosler mounting, Starter, Alternator

32 hp    92 mm bore x 69 mm stroke   917 cc   81 to 103 lbs.

Options- New Case , Battery Ignition , Dual Ignition, Aluminum NiCom Cylinders, Bed, Radial or Mosler Mounting, Starter, Alternator

37 hp    92 mm bore x 78 mm stroke  1037 cc  81 to 103 lbs.

Options-  New Case , Battery Ignition, Dual Ignition, Aluminum NiCom Cylinders, Bed, Radial or Mosler Mounting, Starter, Alternator

45 hp    94 mm bore x 86 mm stroke    1200cc 84 to 102 lbs. This engine comes standard with Aluminum NiCom cylinders.

Options -  New case, Battery Ignition, Dual Ignition,Starter,Alternator Bed, Radial or Mosler Mounting.

Hummel 4-Sroke / 4-Cylinder Engines

Engine configuration: 4-cylinder horizontally opposed direct drive

Compression ratio: 7.6- 8 to 1

Direction of Rotation: Clockwise facing propeller

Cooling system: Air

Lubrication system: Pressure

Ignition System: Magneto primary, Fixed electronic secondary 

Generator output: 11.32 Amps

Starter: Geared 12v

Spark plugs: Automotive style or shielded aircraft magneto system 

Slick Magneto with new Case

Hand start

Fuel consumption: 3 to 5 gph

TBO: No set TBO

50 hp

Displacement:1600 cc 

Bore and stroke: 85.5 mm bore x 69 mm stroke 

Power output: 50 HP @ 3600 rpm

Dimensions: Overall width 31" Length 26" height 16"

Engine weight: 140 to 160 lbs.

Options –Starter/Alternator Kit, Dual Ignition, Accessory Case

60 hp

Displacement: 1835 cc 

Bore and stroke: 92 mm bore x 69 mm stroke 

Power output: 60 HP @ 3600 rpm

Dimensions: Overall width 31" Length 26" height 16"

Engine weight: 135 to 165 lbs.

Options –Starter/Alternator Kit, Dual Ignition, Accessory Case,Aluminum NiCom Cylinders

76 hp

Displacement: 2180 cc

Bore and stroke: 92 mm bore x 82 mm stroke

Power output: 76 HP @ 3600 rpm

Dimensions: Overall width 31" Length 26" height 16"

Engine weight: 137 to 167 lbs.

Options –Starter/Alternator Kit, Dual Ignition, Accessory Case,Aluminum NiCom Cylinders

85 hp

Displacement: 2400 cc

Bore and stroke: 94 mm bore x 86 mm stroke

Power output: 85 HP @ 3600 rpm

Dimensions: Overall width 31" Length 26" height 16"

Engine weight: 137 to 167 lbs.

Options –Starter/Alternator Kit, Dual Ignition, Accessory Case,Aluminum NiCom Cylinders

HML-32/2CL

Data sheet

Certification/Approval
Non Certified product/part
Taric
8407100090 Spark-ignition reciprocating or rotary internal combustion piston aircraft engines
Unit of Measurement (UOM) / Sale
Each (ea.)

Specific References

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HUMMEL VW Converted Aircraft Engines
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HUMMEL VW Converted...

The Hummel Non-Certified aircraft engines include 4-stroke two or four-cylinder opposed direct drive, air cooled engines of different power outputs based on conversions of the original VW engine. The original Hummel conversion has been refined over time, allowing larger displacement and the options of NiCom aluminum cylinders, dual ignition, alternator and electric start. The aluminum NiCom cylinders come as standard with 2-cylinder 45 hp engine and as option for the other 2-cylinder and 4-cylinder engines.

All engines feature a clockwise direction of rotation (facing propeller). No TBO has been set by the manufacturer.

2-cylinder engines are offered in displacements of 840 to 1200 cc with rated horsepower from 28 to 45 hp. Engine weight for the 2-cylinder engines varies from 81 to 103 lbs. 

Offered options (supplied with the engine at additional cost) include a new case, battery ignition, dual ignition, bed, radial or mosler mounting, aluminum NiCom cylinders (for 28/32/37 hp engines), starter and alternator.

These engines power Hummelbird, Ultra Cruiser and other experimental amateur built and ultralight aircraft. 

while the respective horsepower for the 4-cylinder engines is between 50 and 85 hp.

4-cylinder engines are offered in displacements of 1600 to 2400 cc with rated horsepower from 50 to 85 hp. Compression ratio: 7.6- 8 to 1. Engine weight for the 4-cylinder engines varies from 137 to 167 lbs. 

They are based on Type 1 VW crankcase with slick magneto, new case  and hand start and feature pressure lubrication, magneto primary, fixed electronic secondary ignition, 11.32 Amps generator, geared 12v starter and automotive style or shielded aircraft magneto system spark plugs. Different options are offered depending on the selected engine which can be supplied with the engine at additional cost. They include starter, alternator, accessory case, dual ignition and aluminum NiCom cylinders.

The four-cylinder engines have been used as powerplant for aircraft designs like the Sonerai, Sonex, Ultracruiser Plus, Aerosport Quail, Avid Flyer, Corby Starlet and others.

More information are included in the Product Description section.