“Iron Maiden” Steam Traction Engine

“Iron Maiden” Steam Traction Engine

Craftsman: Stephen J. King

Knapp Collection #: 242

Catalog #: 2011.27.23

Contributor: Paul Knapp 

The “Iron Maiden” steam traction engine is a reversible double acting engine with a .4-inch bore, 1.25-inch stroke, and a 25:1 drive ratio with a clutch.

“Kitty Hawk” 4-Cylinder Inline Engine

“Kitty Hawk” 4-Cylinder Inline Engine

Craftsman: Lloyd Butler

Knapp Collection #: 57

Catalog #: 2008.10.17

Contributor: Paul Knapp

The engine used in the 1903 Wright brothers’ flyer was a 4-cylinder, 4-cycle, internal-combustion engine that lifted the world’s first airplane and its pilot into the sky in 1903. 

“Water Witch” Single-Cylinder Marine Engine

“Water Witch” Single-Cylinder Marine Engine

Craftsman: Dick Pretel

Knapp Collection #: 179

Catalog #: 2008.16.30

Donor: Paul Knapp

Dick Pretel modified the original “Water Witch” castings to create this custom machined version. The engine burns gasoline on spark ignition.

1-Cylinder, 4-Cycle Model Boat Motor

1-Cylinder, 4-Cycle Model Boat Motor

Craftsman: Henry Parohl

Knapp Collection #: 106

Catalog #: 2008.16.17

Contributor: Paul Knapp

This 1-cylinder, 4-cycle model boat motor is 5”-long, 4”-wide, and 4”-high.

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 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 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 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 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.

1/4 Scale Ferrari V-12 Engine

1/4 Scale Ferrari V-12 Engine

Craftsman: Bennie Vreeman

Knapp Collection #: 219 

Catalog #: 2009.9.29

Contributor: Paul Knapp 

This 1/4 scale Ferrari V-12 model auto engine is 12”-long, 8”-wide, and 6”-high. It has a bore of 1.160″ and a stroke of only .580″, yielding a total displacement of .609 cubic inches.

1/4 Scale Ford Model A Engine

1/4 Scale Ford Model A Engine

Craftsman: Lee Root

Knapp Collection #: 103

Catalog #: 2009.9.16

Contributor: Paul Knapp 

Lee Root produced this 1/4 scale replica of the 4-cylinder, water-cooled engine used in the famous Ford Model A automobile.

1/4 Scale OFFY 270 Engine With Fuel Injection

1/4 Scale OFFY 270 Engine With Fuel Injection

Craftsman: Ron Bement

Knapp Collection #: 497

Catalog #: 2016.44.8

Contributor: Paul Knapp

This 1/4 scale “OFFY” 270 engine burns gasoline on spark ignition, sports a pressurized fuel system, has dry sump lubrication, and an aluminum radiator.

1/4 Scale Red Wing Stationary Engine 

1/4 Scale Red Wing Stationary Engine 

Craftsman: Tim Junk

Knapp Collection #: 531

Catalog #: 2017.27.4

Contributor: Paul Knapp 

This 1/4 scale Red Wing stationary engine measures 14.5”-long, 9.5”-wide, and 13.5”-tall including the oiler and base. It has a bore of 1.25” and a stroke of 2”.

1/4 Scale Small Block Chevy V-8 Engine

1/4 Scale Small Block Chevy V-8 Engine

Craftsman: Lee Root

Knapp Collection #: 102

Catalog #: 2009.9.15

Contributor: Paul Knapp 

Lee Root machined 7075 aircraft grade aluminum to produce the crankcase, heads, rods and pistons for this Chevy Corvette small block V-8.

1/4 Scale Wright Brothers Flyer by Robert Cooper

1/4 Scale Wright Brothers Flyer by Robert Cooper

Craftsman: Robert Cooper

Catalog #: 2014.9.1

Contributor: Paul Knapp

This 1/4 scale  model Wright Brothers Flyer has a nearly 12′ wingspan, and is historically correct in every detail. It is one of two identical models built by Robert Cooper.

Showing 20 of 470 exhibits.

Presented by The Joe Martin Foundation for Exceptional Craftsmanship