Gannet Single-Cylinder Model Airplane Engine 

Gannet Single-Cylinder Model Airplane Engine 

Craftsman: Gannet Engineering

Knapp Collection #: 129

Catalog #: 2009.9.21

Contributor: Paul Knapp 

The Gannet single-cylinder, four-cycle model airplane engine is 8”-long, 7”-wide, and 7”-high. This is one of only a few models equipped with a magneto.

Gasparin 18-Cylinder Radial CO2 Engine

Gasparin 18-Cylinder Radial CO2 Engine

Craftsman: Stefan Gasparin

Knapp Collection #: 288

Catalog #: 2011.32.8

Contributor: Paul Knapp 

Stefan Gasparin designed and built over 60 variations of CO2 engines from 1 through 18-cylinders—including single-cylinder, inline, opposed flat, “V,” rotary, and radial configurations.

Gasparin 3-Cylinder Soda Gas (CO2) Radial Engine

Gasparin 3-Cylinder Soda Gas (CO2) Radial Engine

Craftsman: Stefan Gasparin

Knapp Collection #: 286

Catalog #: 2011.32.6

Contributor: Paul Knapp 

Stefan Gasparin designed and built over 60 variations of CO2 engines from 1 through 18-cylinders—including single-cylinder, inline, opposed flat, “V,” rotary, and radial configurations.

Gasparin 9-Cylinder Rotary CO2 Engine

Gasparin 9-Cylinder Rotary CO2 Engine

Craftsman: Stefan Gasparin

Knapp Collection #: 287

Catalog #: 2011.32.7

Contributor: Paul Knapp

Stefan Gasparin designed and built over 60 variations of CO2 engines from 1 through 18-cylinders—including single-cylinder, inline, opposed flat, “V,” rotary, and radial configurations.

Gasparin Flat Four CO2 Airplane Engine

Gasparin Flat Four CO2 Airplane Engine

Craftsman: Stefan Gasparin

Knapp Collection #: 393

Catalog #: 2013.53.8

Contributor: Paul Knapp

Also called a “Soda Gas Engine,” the tank under the engine receives a charge of CO2 which is liquid at ambient temperature at a vapor pressure of about 850 PSI.

Gasparin G-10 CO2 Motor

Gasparin G-10 CO2 Motor

Craftsman: Stefan Gasparin

Catalog #: 2014.7.1

Contributor: Edward Swenton Jr.

This Gasparin G-10 CO2 motor has a 9.82 cubic millimeter displacement. The bore is 2.5mm, stroke is 2.0mm, and it weighs 4 grams.

Gasparin GMW 160 CO2 Motor

Gasparin GMW 160 CO2 Motor

Craftsman: Stefan Gasparin

Catalog #: 2014.7.5

Contributor: Edward Swenton Jr.

This Gasparin GMW 160 CO2 motor has a 1.57 cubic mm displacement. The bore is 5.0mm, stroke is 8mm, weight is 16.8 grams (without prop).

Gasparin GMW 73 CO2 Motor

Gasparin GMW 73 CO2 Motor

Craftsman: Stefan Gasparin

Catalog #: 2014.7.4

Contributor: Edward Swenton Jr.

This Gasparin GMW 73 CO2 motor has a 73.72 cubic mm displacement. The bore is 3.8mm, stroke is 6.5mm, and weight is 16.8 grams (without prop).

Gasparin Micro Taylorcraft Flyer With CO2 Engine

Gasparin Micro Taylorcraft Flyer With CO2 Engine

Craftsman: Stefan Gasparin

Knapp Collection #: 289

Catalog #: 2011.32.9

Contributor: Paul Knapp 

The Gasparin CO2 Micro Flyer with a G2.6 “World’s Smallest CO2 Engine,” has a wingspan of just 6.3 inches and weighs a total of 3.5 grams with engine.

GIL Model Airplane Engine

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

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

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.

Handt 3-Cylinder Radial Aircraft Engine

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

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.

Hawk 40 Single-Cylinder Aircraft Engine

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.

Heinen 5-Cylinder Radial Engine 

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

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.

Hi Johnson .35 Model Engine 

Hi Johnson .35 Model Engine 

Craftsman: Dynamic Models 

Catalog #: 2015.22.3 

Donor: Tony Cina 

The Hi Johnson .35 is a glow ignition single-cylinder engine that first appeared in ads in 1955. The bore is .770, and the stroke is .750.

Hodgeson 7-Cylinder Radial Airplane 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.

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Presented by The Joe Martin Foundation for Exceptional Craftsmanship