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.

1/6 Scale 1932 Duesenberg SJ

1/6 Scale 1932 Duesenberg SJ

Craftsman: Louis Chenot

Catalog #: 2013.51.1

Donor: Louis Chenot

Louis Chenot’s incredible 1/6 scale model 1932 Duesenberg SJ features a running straight-eight, 32-valve engine, working transmission with reverse, battery-powered operating lights, and more.

1/6 Scale Cirrus Model Airplane Engine 

1/6 Scale Cirrus Model Airplane Engine 

Craftsman: Charles “Chuck” Harty

Knapp Collection #: 519

Catalog #: 2017.27.14 

Contributor: Paul Knapp 

This is Chuck Harty’s rendition of the 1/6 scale Cirrus designed by Merritt Zimmerman. It is 7”-long, 6”-high, 3”-wide, and weighs 2 pounds 9 ounces on the aluminum base.

100cc 2-Cylinder Opposed Aircraft Engine

100cc 2-Cylinder Opposed Aircraft Engine

Craftsman: Unknown

Knapp Collection #: 187

Catalog #: 2008.16.35

Contributor: Paul Knapp

Commercially available cylinders, possibly from a motorcycle, were used to produce this aircraft engine in Germany.

14-Cylinder, Twin-Row Radial Engine

14-Cylinder, Twin-Row Radial Engine

Craftsman: Dennis Fadden

Knapp Collection #: 04

Catalog #: 2008.16.01

Contributor: Paul Knapp

This 1/8 scale 14-cylinder radial engine model operates on regular gasoline with spark ignition and swings a 12-inch diameter propeller.

18-Cylinder, Two-Row Radial Engine

18-Cylinder, Two-Row Radial Engine

Craftsman: Harold Beckett

Knapp Collection #: 41

Catalog #: 2008.16.06

Contributor: Paul Knapp

Harold Beckett handcrafted this 1/4 scale engine from drawings provided by Sam and Lee Hodgeson. The engine operates on regular gasoline with dual spark ignition.

1937 Ford Flathead V8 in 1/4 Scale

1937 Ford Flathead V8 in 1/4 Scale

Craftsman: Roger Butzen

Knapp Collection #: 759

Catalog #: 2024.5.6

Contributor: Paul Knapp

Roger Butzen, of Texas, built this 1937 Ford Flathead V8 engine in 1/4 scale sometime in the 1990s.

Showing 20 of 666 exhibits.

Presented by The Joe Martin Foundation for Exceptional Craftsmanship