.020 Opposed 2-Cylinder, 2-Cycle Aero Engine

.020 Opposed 2-Cylinder, 2-Cycle Aero Engine

Craftsman: John Swartzwelder

Knapp Collection #: 207

Catalog #: 2008.16.48

Contributor: Paul Knapp

John Swartzwelder fabricated several small multi-cylinder aircraft engines from commercially available Cox .049, .020, and .010 cc model airplane engines.

.040 Opposed 2-Cylinder, 2-Cycle Aero Engine

.040 Opposed 2-Cylinder, 2-Cycle Aero Engine

Craftsman: John Swartzwelder

Knapp Collection #: 206

Catalog #: 2008.16.49

Contributor: Paul Knapp

John Swartzwelder fabricated several small multi-cylinder aircraft engines from commercially available Cox .049, .020, and .010 cc model airplane engines.

.098 Opposed 2-Cylinder, 2-Cycle Aero Engine

.098 Opposed 2-Cylinder, 2-Cycle Aero Engine

Craftsman: John Swartzwelder

Knapp Collection #: 205

Catalog #: 2008.16.47

Contributor: Paul Knapp

John Swartzwelder fabricated several small multi-cylinder aircraft engines from commercially available Cox .049, .020, and .010 cc model airplane engines.

.098 Vertical 2-Cylinder, 2-Cycle Aero Engine

.098 Vertical 2-Cylinder, 2-Cycle Aero Engine

Craftsman: John Swartzwelder

Knapp Collection #: 204

Catalog #: 2008.16.46

Contributor: Paul Knapp

John Swartzwelder fabricated several small multi-cylinder aircraft engines from commercially available Cox .049, .020, and .010 cc model airplane engines.

“Dominator” Model Aircraft Engine

“Dominator” Model Aircraft Engine

Craftsman: Noel Jensen

Knapp Collection #: 85

Catalog #: 2008.10.26

Contributor: Paul Knapp

To achieve more power, Noel Jensen added two more cylinders and produced this flat 4-cylinder opposed engine dubbed the “Dominator.”

“Green Dragon” Model Airplane Engine

“Green Dragon” Model Airplane Engine

Craftsman: John Nuovo

Knapp Collection #: 132

Catalog #: 2008.10.37

Contributor: Paul Knapp

The Green Dragon burns methanol with castor oil mixed in for lubrication on spark ignition. The engine is 7″-long, 5″-wide, and 6″-high.

“Little Dominator” Model Aircraft Engine

“Little Dominator” Model Aircraft Engine

Craftsman: Noel Jensen

Knapp Collection #: 84

Catalog #: 2008.10.25

Contributor: Paul Knapp

A rotary valve, twin-cylinder, air-cooled engine named “Little Dominator.” The 1″-bore and 1.1″-stroke engine turns a 16/6 propeller at 6,000 rpm.

“Maxse T-Seven” 7-Cylinder Radial Model Airplane Engine

“Maxse T-Seven” 7-Cylinder Radial Model Airplane Engine

Craftsman: Maxse Tayler

Knapp Collection #: 126

Catalog #: 2008.10.36

Contributor: Paul Knapp

Maxse Tayler used the piston and cylinder assemblies from the commercially manufactured Saito 120 model airplane engines to build this 7-cylinder radial.

“Micro Cirrus” V8 Engine

“Micro Cirrus” V8 Engine

Craftsman: Profi M. E.

Knapp Collection #: 112

Catalog #: 2008.10.31

Contributor: Paul Knapp

This 1/12 scale “Micro Cirrus” engine runs on methanol with glow ignition, and is among the smallest multi-cylinder 4-cycle engines in the world.

“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. 

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 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 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.

Showing 20 of 252 exhibits.

Presented by The Joe Martin Foundation for Exceptional Craftsmanship