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.
Horizontal Gas Engine
Craftsman: Russell Anderson
Catalog #: 2019.21.8
Contributor: Steve Anderson
Russell Anderson gained the knowledge to build this horizontal gas engine, and many others, by working on farm equipment in his early years.
Hornet “R” .60 Model Airplane Engine
Craftsman: Victory Tool & Die
Catalog #: 2015.22.4
Donor: Tony Cina
This hornet “R” engine is Serial No. V6460. It has a bore of .940 and a stroke of .875 for a total displacement of .607 cubic inches.
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.
Howell V4, 4-Cylinder 4-Stroke Model Engine
Craftsman: Ramon Hoagland
Knapp Collection #: 667
Catalog #: 2021.9.5
Contributor: Paul Knapp
This Howell V4, 4-cylinder, 4-stroke model engine was built by Ramon Hoagland, of Colorado, in 2013.
HP .61 Engine Cutaway
Craftsman: Hirtenberger Patronen
Catalog #: 2010.19.7
Donor: Jerry Nelson
The Silver Star and Gold Cup engines are among some of last to be made in Austria before production was moved to the USA in 1990.
HP Gold Cup .40 Engine Cutaway #21
Craftsman: Hirtenberger Patronen
Catalog #: 2010.19.5
Donor: Jerry Nelson
This particular HP engine has a black Thermex coating and a muffler weight of 3.6 ounces.
HP Silver Star .40 Engine Cutaway #22
Craftsman: Hirtenberger Patronen
Catalog #: 2010.19.4
Donor: Jerry Nelson
This HP Silver Star cutaway model, one of four donated by Jerry Nelson, shows the engine’s internals.
HP Silver Star .61 Engine Cutaway #24
Craftsman: Hirtenberger Patronen
Catalog #: 2010.19.6
Donor: Jerry Nelson
The Silver Star and Gold Cup engines are among some of last to be made in Austria before production was moved to the USA in 1990.
I.H.C. Mogul Side Shaft Engine
Craftsman: Russell Anderson
Catalog #: 2019.21.5
Contributor: Steve Anderson
Several engines built by Russell Anderson, including this I.H.C. Mogul side shaft engine, are on display in the Miniature Engineering Craftsmanship Museum.
Indian Silver Arrow 2-Cycle Outboard Boat Motor
Craftsman: Ted Maciag and Profi M. E.
Knapp Collection #: 252
Catalog #: 2011.27.30
Contributor: Paul Knapp
The Indian Silver Arrow is a two-cylinder, opposed, two-cycle, water-cooled engine that was rated at 10 HP.
International Harvester Screen-Cooled Stationary Engine
Craftsman: Everett Kroll
Knapp Collection #: 151
Catalog #: 2011.27.10
Contributor: Paul Knapp
A 1/4 scale model International Harvester screen-cooled stationary Hit N’ Miss engine.
International Harvester Stationary Engine
Craftsman: Everett Kroll
Knapp Collection #: 150
Catalog #: 2011.27.9
Contributor: Paul Knapp
A 1/4 scale model International Harvester hopper-cooled stationary Hit N’ Miss engine.
Jemma 7-Cylinder Radial Airplane Engine
Craftsman: Charles “Chuck” Harty
Knapp Collection #: 526
Catalog #: 2017.27.11
Contributor: Paul Knapp
Built from construction articles in Strictly IC Magazine, the engine is machined completely from bar stock; there are no castings. It is about 9-inches in diameter and 8-inches long.
JEMMA 7-Cylinder Radial Engine
Craftsman: Bob Haagenson
Knapp Collection #: 358
Catalog #: 2013.53.2
Contributor: Paul Knapp
The JEMMA 7-cylinder radial engine is 13”-long, 9”-wide, 10”-high, and weighs 11 lbs. 6 oz. It has a bore of .750 and stroke of .800.
Jenno 14 Single-Cylinder Model Airplane Engine
Craftsman: Larry Jenno
Knapp Collection #: 194
Catalog #: 2008.16.38
Contributor: Paul Knapp
Larry Jenno’s first homemade engine is this .14 cubic inch, single-cylinder, two-cycle model airplane engine. The engine is 3″-long, 2″-wide, 3″-high, and weighs 8 oz.
John .060 V-Twin Model Engines (Glow and Diesel)
Craftsman: Jan Garcic
Knapp Collection #: 572, 573
Catalog #: 2019.10.1
Contributor: Paul Knapp
These John .060 V-twin model engines were produced in very low quantities. Mr. Garcic geared together two of his .030 single-cylinder engines to produce these .060 “V” style twins.
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