1/2 Scale Olds Stationary Engine

1/2 Scale Olds Stationary Engine

Craftsman: Everett Kroll

Knapp Collection #: 149 

Catalog #: 2009.9.24

Contributor: Paul Knapp 

This 1/2 scale model Olds stationary engine was built by Everett Kroll in the 1990s. The engine is 16”-long, 13”-wide, and 14”-high.

1/3 Scale Gatling Gun

1/3 Scale Gatling Gun

Craftsman: Birk Petersen

Catalog #: 2016.15.83

Donor: Mark Petersen

Along with Birk Petersen’s many engines and toys, the craftsman has also made several miniature firearms. Among them is this 1/3 scale Gatling gun on a tripod mount. It fires .22 caliber rounds. Mr. Petersen created a vast array of projects over his lifetime, ranging from miniature engines to hand-cranked animations and more. He built […]

1/3 Scale Miller Flathead Ford V8 (In Progress)

1/3 Scale Miller Flathead Ford V8 (In Progress)

Craftsman: Ed Miller

Knapp Collection #: 481

Catalog #: 2016.8.33

Contributor: Paul Knapp

Ed Miller’s rendition of the early Ford V8 flathead has a bore of 1″, stroke of 1.25″, and will burn methanol on spark ignition.

1/3 Scale Tadpole Mini-Tether Car

1/3 Scale Tadpole Mini-Tether Car

Craftsman: Ted Maciag

Knapp Collection #: 171

Catalog #: 2008.10.50

Contributor: Paul Knapp

The Tadpole is powered by a Cox .01 cubic inch engine with a 2:1 gear ratio driving the rear wheels. It runs on alcohol and 25% nitromethane for fuel.

1/3-Scale Red Wing Hit N’ Miss Engine

1/3-Scale Red Wing Hit N’ Miss Engine

Craftsman: Paul Elsmore

Catalog #: 2011.15.1 

Contributor: Paul Elsmore

This 1/3 scale Red Wing air-cooled “Thorobred” hit n’ miss engine has a bore of 1.5″ and a stroke of 2″. It runs on regular gasoline and uses a buzz coil as an ignition source.

1/4 Scale 1931 Aeroneca E113 Aero Engine With Propeller

1/4 Scale 1931 Aeroneca E113 Aero Engine With Propeller

Craftsman: Les Chenery

Knapp Collection #: 451

Catalog #: 2016.8.28

Contributor: Paul Knapp

This 1/4 scale 1931 Aeroneca E113 aero engine measures 8-1/2″-long, 11″-wide, and 9″-high. It has a bore and stroke of 1-1/8″ for a total displacement of 2.2 cubic inches.

1/4 Scale Anzani 3-Cylinder Radial Aircraft Engine

1/4 Scale Anzani 3-Cylinder Radial Aircraft Engine

Craftsman: Roger Butzen

Knapp Collection #: 69

Catalog #: 2008.16.10

Contributor: Paul Knapp

This 1/4 scale Anzani 3-cylinder radial aircraft engine runs on gasoline with spark ignition and pressurized lubrication system. The engine is 15”-long, 23”-wide, 12”-high, and weighs 14 lbs. 2 oz.

1/4 scale Bentley BR-2 Propeller

1/4 scale Bentley BR-2 Propeller

Craftsman: Robert Cooper

Knapp Collection #: 39

Catalog #: 2009.9.03

Contributor: Paul Knapp 

This scale model is based on the propeller used with a Bentley BR-2 rotary airplane engine in a World War I Sopwith Snipe airplane.

1/4 Scale Caminez 4-Cylinder Radial Aircraft Engine

1/4 Scale Caminez 4-Cylinder Radial Aircraft Engine

Craftsman: Wally Warner

Knapp Collection #: 193

Catalog #: 2008.16.37

Contributor: Paul Knapp

This 1/4 scale Caminez 4-cylinder radial aircraft engine was designed and built by Wally Warner. The engine is 10″-long, 8″-wide, 9″-high, and weighs 7 lbs. 5 oz.

1/4 Scale Cirrus Inline 4 Aero Engine

1/4 Scale Cirrus Inline 4 Aero Engine

Craftsman: Butch Wilson

Knapp Collection #: 736

Catalog #: 2023.2.2

Contributor: Paul Knapp

Mr. Wilson machined and fabricated all components to produce this model. It measures 13.5″-long, 4.5″-wide, 9″-high, and weighs about 15 lbs.

1/4 Scale Cirrus Model Airplane Engine 

1/4 Scale Cirrus Model Airplane Engine 

Craftsman: Charles “Chuck” Harty

Knapp Collection #: 521

Catalog #: 2017.27.3

Contributor: Paul Knapp 

This 1/4 scale Cirrus model airplane engine was designed by Merritt Zimmerman and built by Charles Harty. It measures about 12.5”-long, 9”-high, 4.3”-wide, and weighs 10 pounds.

1/4 Scale Cushman 711 Scooter

1/4 Scale Cushman 711 Scooter

Craftsman: Daniel "Buzz" Brunkow

Catalog #: 2013.34.1

Contributor: Daniel "Buzz" Brunkow

This 1/4 scale model Cushman 711 scooter was built to a high level of detail, capturing the fun of an era when motorized two-wheel transportation was a little simpler.

1/4 Scale Cushman Husky Engine

1/4 Scale Cushman Husky Engine

Craftsman: Daniel "Buzz" Brunkow

Catalog #: 2013.34.2

Contributor: Daniel "Buzz" Brunkow

A 1/4 scale model of the 1939 Cushman Husky engine to go along with Daniel Brunkow’s scale Cushman scooter.

Showing 20 of 1292 exhibits.

Presented by The Joe Martin Foundation for Exceptional Craftsmanship