Conversion - 1/2 Hummel

 
Rev - Nov 11, 2017

 By Jan Zumwalt (EAA #66327)


 

See also

Introduction

Hummel engines are Volkswagen auto engines converted to full (four-cylinder) or 1/2 VW (two-cylinder) aircraft engines by James Morris (Morry) Hummel of Bryan, Ohio. Plans, as well as parts, are sold for both full and 1/2 VW engines. The 1/2 VW conversions are available with either the cut case or the full case.

Hummel also is known for developing the Hummel Bird, two UltraCruiser versions and other light aircraft that can be powered by his conversions and for which he sells plans. The Hummel Bird is a design for an all-metal, single-seat aircraft of the same category as the Jeanie's Teeny designed by Cal Parker and the Windwagon designed by Gary Watson. Morry Hummel retired from both the engine and aircraft operations of the firm in 2002-2003.

Scott Casler now builds and sells plans for the engines in his new facility in Coolidge, Arizona as Hummel Engines. Terry Hallet now does the aircraft development and sales, still from Bryan, Ohio, as Hummel Aviation. These new firms can be reached at the Hummel Engines Website and the Hummel Aviation Website, respectively. A nice biographical sketch of Morry Hummel can be found in the "About Us" section of the Hummel Aviation Website.

2 CYLINDER ENGINES

ALL 2 CYLINDER ENGINES CAN BE MADE WITH THE CUT CASE OR FULL CASE VERSION

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 92mm bore x 69mm stroke 917cc 81 to 103 lbs.
Options — New Case, Battery Ignition. Dual Ignition. Bed. Radial or Mosler Mounting. Aluminum NiC 01 Cylinders. Starter, Alternator

37 HP 92 mm bore x 78mm stroke 1037cc 81 to 103 lbs.
Options — New Case, Battery Ignition. Dual Ignition, Bed, Radial or Mosler Mounting. Aluminum NiC 0111 Cylinders. Starter, Alternator

45 HP 94 mm bore x 86 mm stroke 1200 cc 84 to 102 lbs.
Options — New Case, Battery Ignition, Dual Ignition. Bed, Radial or Mosler Mounting. Starter. Alternator
This engine comes standard with Aluminum Nichrome Cylinders.

4 CYLINDER ENGINES

50 HP 85.5 mm bore x 69 mm stroke 1600 cc 140 to 160 lbs.
Options — Starter, Alternator. Accessory Case

60 HP 92 mm bore x 69 mm stroke 1835 cc 135 to 165 lbs.
Options — Starter. Alternator, Accessory Case, Dual Ignition.
Aluminum Nichrome Cylinders.

76 HP 92 mm bore x 82 mm stroke 2180 cc 137 to 167 lbs.
Options — Starter, Alternator, Accessory Case, Dual Ignition,
Aluminum Nichrome Cylinders.

85 HP 94 mm bore x 86 mm stroke 2400 cc 137 to 167 lbs.
Options — Starter, Alternator, Accessory Case, Dual Ignition,
Aluminum Nichrome Cylinders.