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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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.