Cooney .61 Engine (Side Port)

Cooney .61 Engine (Side Port)

Craftsman: Ralph Cooney

Catalog #: 2012.7.4

Donor: Ralph Cooney

This engine design of Ralph Cooney’s incorporates a side exhaust port with a T-shaped bypass and a two-piece crankcase.

Cooney .61 Mold and Wax Masters

Cooney .61 Mold and Wax Masters

Craftsman: Ralph Cooney

Catalog #: 2012.7.6 and 2012.7.7

Donor: Ralph Cooney

The molds shown here were made for the Cooney .61 side port engine. The cores must be made in pieces so they can be extracted at various angles from the wax master.

Cooney Bourke .09 Model Airplane Engine

Cooney Bourke .09 Model Airplane Engine

Craftsman: Ralph Cooney

Catalog #: 2013.2.1

Donor: Ralph Cooney

The Bourke engine was developed as a super-efficient, high power per weight engine for automobiles.

Corliss Horizontal Steam Engine

Corliss Horizontal Steam Engine

Craftsman: Birk Petersen

Catalog #: 2016.15.37

Donor: Mark Petersen

Birk’s miniature Corliss horizontal steam engine. He made all the patterns and castings, and did all of the machining as well.

Corliss Steam Engine

Corliss Steam Engine

Craftsman: Ramon Hoagland

Knapp Collection #: 615

Catalog #: 2019.33.12

Contributor: Paul Knapp

This Corliss steam engine was made by Ramon Hoagland, of Colorado, in 2008.

COSWORTH DFV 1/3 Scale Formula 1 V8 Engine

COSWORTH DFV 1/3 Scale Formula 1 V8 Engine

Craftsman: Marcel Bouland

Knapp Collection #: 611

Catalog #: 2019.33.8

Contributor: Paul Knapp

This COSWORTH DFV 1/3 scale Formula 1 V8 engine has a bore of 1-inch and a stroke of .826-inch for a total capacity of 4.64 cubic inches.

Cox .020 Model Airplane Engine

Cox .020 Model Airplane Engine

Craftsmen: Leroy Cox, L.M. Cox Manufacturing

Catalog #: 2010.9.1

Donor: Joshua Vest

This Cox .020 model airplane engine is still in new condition in the original plastic box.

Cox .049 Baby Bee Engine

Cox .049 Baby Bee Engine

Craftsmen: Leroy Cox, L.M. Cox Manufacturing

Catalog #: 2008.20.1

Donor: Bill Holcomb

The Cox .049 “Baby Bee” model airplane engine with prop.

Cox .049 Engine

Cox .049 Engine

Craftsmen: Leroy Cox, L.M. Cox Manufacturing

Catalog #: 2012.29.4

Contributor: Andy Moore

This Cox .049 engine includes a pull start and centrifugal clutch. A retractible starter cord makes starting this engine easier (and safer) than turning the prop on an airplane engine.

Cox .75 5-Cylinder Radial Engine

Cox .75 5-Cylinder Radial Engine

Craftsman: Paul Daniels

Knapp Collection #: 26

Catalog #: 2011.27.5

Contributor: Paul Knapp 

This Cox .75 radial aircraft engine is 7″-long, 8″-wide, 9″-high, and weighs 7 lbs. 8 oz. The “Cox .75” consists of five Cox .15 cubic-inch engines geared together.

Cox Tee Dee .09 Engine

Cox Tee Dee .09 Engine

Craftsmen: Leroy Cox, L.M. Manufacturing Company

Catalog #: 2012.23.2

Donor: Joe Bridi

This is the smallest of the Cox “Tee Dee” engine series. It turns up to 30,000 RPM with a 3 x 1.25 prop.

Cox Thimble Drome .049 Engine

Cox Thimble Drome .049 Engine

Craftsman: Leroy Cox

Catalog #: 2012.29.3

Contributor: Andy Moore

This reed valve engine features a rear carburetor fed from a remote fuel tank rather than one attached to the engine. It is displayed with a cut-down 4-bladed propeller.

Cretors Flyball Steam Engine 

Cretors Flyball Steam Engine 

Craftsman: Ramon Hoagland

Knapp Collection #: 693

Catalog #: 2022.8.4

Contributor: Paul Knapp

This Cretors flyball steam engine was built by Ramon Hoagland. 

Cretors Oscillating Steam Engine

Cretors Oscillating Steam Engine

Craftsman: Ramon Hoagland

Knapp Collection #: 692

Catalog #: 2022.8.3

Contributor: Paul Knapp

This Cretors oscillating steam engine was made by Ramon Hoagland. 

Cretors Popcorn Wagon Engine

Cretors Popcorn Wagon Engine

Craftsman: C. Cretors & Co.

Catalog #: 2011.4.17

Donor: Les Cade

The Cretors Company in Chicago invented the use of steam engines to pop popcorn and roast nuts in horse drawn vending wagons in the 1890s.

Curtiss OX-5 V8 Model Airplane Engine

Curtiss OX-5 V8 Model Airplane Engine

Craftsman: Replica Engines

Knapp Collection #: 17

Catalog #: 2011.27.4

Contributor: Paul Knapp 

This is a 1/4 scale miniature of the Curtiss OX-5 water-cooled V8 used in the standard Curtiss J.N. “Jenny” aircraft.

Custom 2-Cylinder Steam Engine

Custom 2-Cylinder Steam Engine

Craftsman: Builder unknown; Restored by Ron Schindele

Knapp Collection #: 604

Catalog #: 2019.33.5

Contributor: Paul Knapp

This small steam engine measures 6-1/2-inches long (including the crankshaft), 2-7/8-inches wide, 7-inches tall, and sports a 3-inch flywheel.

Custom 2-Stroke Vapor Engine

Custom 2-Stroke Vapor Engine

Craftsman: Roger Butzen

Knapp Collection #: 764

Catalog #: 2024.5.10

Contributor: Paul Knapp

Roger Butzen built this custom 2-stroke vapor engine in the late 1990s.

Custom 5-Cylinder Radial Airplane Engine

Custom 5-Cylinder Radial Airplane Engine

Craftsman: Charles “Chuck” Harty

Knapp Collection #: 527

Catalog #: 2017.27.12

Contributor: Paul Knapp 

Chuck’s custom 5-cylinder radial engine resembles the Morton M5 but measures 8” in diameter, 8”-long, and weighs 6 pounds 5 ounces on the base.

Custom Engineered 2-Cylinder Hit N’ Miss Engine

Custom Engineered 2-Cylinder Hit N’ Miss Engine

Craftsman: Ramon Hoagland

Knapp Collection #: 546 

Catalog #: 2017.27.2

Contributor: Paul Knapp 

This custom engineered 2-cylinder hit n’ miss engine measures 11.5”-long, 8.5”-wide, 8”-high. It has a bore of 1” and a stroke of 1.5” for a total displacement of 2.4 cubic inches.

Showing 20 of 679 exhibits.

Presented by The Joe Martin Foundation for Exceptional Craftsmanship