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
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
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
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
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
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
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
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
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.
Gilbert Thunderhead .07 Model Airplane Engine
Craftsman: A.C. Gilbert Co.
Catalog #: 2009.3.1
Donor: Mel Scott
This .074 cubic inch engine was built by A.C. Gilbert Co. and distributed by Polk’s Model Craft Hobbies.
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.
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.
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
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.
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
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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