GIL Model Airplane Engine
Craftsman: GIL Manufacturing
Knapp Collection #: 319
Catalog #: 2012.33.4
Contributor: Paul Knapp
This GIL model airplane engine is a 1.18 cubic inch two-cycle model airplane engine produced from 1922 to 1933 by GIL Manufacturing in Chicago.
Gipsy Major MK I
Craftsman: Reinhold Krieger
Knapp Collection #: 341
Catalog #: 2012.33.16
Contributor: Paul Knapp
The 1/3 scale inverted inline 4-cylinder Gipsy Major has a 1.3-inch bore and a 1.6-inch stroke for a total displacement of 8.5 cubic inches.
Gnome 160 Rotary Airplane Engine
Craftsman: Ray Williams
Knapp Collection #: 114
Catalog #: 2008.10.32
Contributor: Paul Knapp
The Gnome 160 operates on gasoline with spark ignition and a pressurized oil system. It has a displacement of 27 cubic inches and the engine itself weighs 11 pounds.
Gray Horizontal Stationary Engine
Craftsman: Dwight Giles
Knapp Collection #: 544
Catalog #: 2019.9.1
Contributor: Paul Knapp
This Gray horizontal stationary engine was made by Dwight Giles. It measures 16”-long, 12”-wide, 13.5”-high, and weighs 63 pounds on the base.
Guttu Offy Special
Craftsman: George "Ron" Guttu
Knapp Collection #: 569
Catalog #: 2019.9.9
Contributor: Paul Knapp
The Guttu Offy Special has a miniature Offy engine that was scaled from drawings of the full-size original. It sports Ron’s custom made Winfield carburetors.
Handt 3-Cylinder Radial Aircraft Engine
Craftsman: Erich Handt
Knapp Collection #: 191
Catalog #: 2011.27.15
Contributor: Paul Knapp
In this design, Erich Handt used three carburetors—one for each cylinder. It runs on methanol with oil mixed in for lubrication.
Handt 5-Cylinder Radial Aircraft Engine
Craftsman: Erich Handt
Knapp Collection #: 190
Catalog #: 2011.27.14
Contributor: Paul Knapp
Erich Handt machined and constructed his first two-cycle engine in 1967, and his first successful four-cycle engine in 1971.
Harley-Davidson Evolution Engine in 1/3 Scale
Craftsman: Roger Butzen
Knapp Collection #: 773
Catalog #: 2024.5.15
Contributor: Paul Knapp
Roger Butzen built this Harley-Davidson Evolution engine in 1/3 scale.
Hawk 40 Single-Cylinder Aircraft Engine
Craftsman: G. Punter
Knapp Collection #: 178
Catalog #: 2008.16.29
Contributor: Paul Knapp
The Hawk 40 aircraft engine has a 7/8-inch bore, 11/16-inch stroke, weighs about 14 ounces, and burns methanol on glow ignition.
HD Special Miniature .05 Powered Tether Car
Craftsman: Doug Parker
Knapp Collection #: 533
Catalog #: 2019.11.7
Contributor: Paul Knapp
This handmade tether car was machined from solid aluminum and steel bar stock. It measures 7-5/8”-long, 2-7/8”-wide, 2-7/8”-high, and weighs 19.2 ounces.
Heinen 5-Cylinder Radial Engine
Craftsman: Charles “Chuck” Harty
Knapp Collection #: 528
Catalog #: 2017.27.7
Contributor: Paul Knapp
This Heinen 5-cylinder radial engine measures 10” in diameter, 7.5”-long, and weighs 10 pounds. The drawings for Jurgen Heinen’s radial were published in Strictly IC magazine in 1990.
Heinen Motore (HEMO) V4
Craftsman: Jurgen Heinen
Knapp Collection #: 164
Catalog #: 2008.10.48
Contributor: Paul Knapp
This V4 engine has a bore of 32 mm and a stroke of 28 mm with a total displacement of 20 cc. It burns methanol on glow ignition and spins a 20 x 8 propeller up to 14,000 rpm.
Henry Ford’s First Engine
Craftsman: Butch Wilson
Knapp Collection #: 735
Catalog #: 2023.2.1
Contributor: Paul Knapp
Butch Wilson’s exquisite rendition of Henry Ford’s first engine, dubbed the “Kitchen Sink” engine. The engine measures about 36″-long, 15″-wide, 13″-high, and weighs about 36 lbs.
Hercules Twin-Cylinder Utility Engine
Craftsman: Charles “Chuck” Harty
Knapp Collection #: 520
Catalog #: 2017.27.9
Contributor: Paul Knapp
This Hercules twin-cylinder utility engine was built by Charles Harty. Charles used castings and drawings provided by Bob Shores to complete the small utility engine.
Hodgeson 7-Cylinder Radial Airplane Engine
Craftsman: Charles “Chuck” Harty
Knapp Collection #: 525
Catalog #: 2017.27.6
Contributor: Paul Knapp
This Hodgeson 7-cylinder radial airplane engine measures 12” in diameter, 11”-long, and weighs 10 pounds 9 ounces.
Holt 75 Caterpillar Engine
Craftsman: Reinhold Krieger
Knapp Collection #: 77
Catalog #: 2008.16.12
Contributor: Paul Knapp
This model Holt 75 Caterpillar engine is 12”-long, 7”-wide, 10”-high, and weighs 15 lbs. The Holt 75 casting kit was first introduced by Cole’s Power Models.
Holt Caterpillar Tractor Engine
Craftsman: Ron Schindele
Knapp Collection #: 696
Catalog #: 2022.8.7
Contributor: Paul Knapp
Ron Schindele’s extraordinary rendition of the well-known Holt Caterpillar engine sold by Cole’s Power Models. His custom wound dynamo puts out about 40 volts.
Horizontal 4-Stroke Stationary Engine
Craftsman: Roger Butzen
Knapp Collection #: 772
Catalog #: 2024.5.14
Contributor: Paul Knapp
This horizontal 4-stroke stationary engine was built by Roger Butzen.
Howell V-Twin Engine
Craftsman: Ramon Hoagland
Knapp Collection #: 694
Catalog #: 2022.8.5
Contributor: Paul Knapp
This Howell air-cooled V-twin engine was built by Ramon Hoagland. The engine is 18″-long, 11.5″-wide, 11″-high, and weighs 21 lbs.
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