“Eldon I 2636” 6-Cylinder Inline Model Boat Engine

“Eldon I 2636” 6-Cylinder Inline Model Boat Engine

Craftsman: Jim Hawk

Knapp Collection #: 189

Catalog #: 2008.10.52

Contributor: Paul Knapp

This engine is water-cooled (including the exhaust), sports a 120-degree crankshaft, and burns methanol on glow ignition. It measures 13″- long, 7″-wide, and 7″-high.

“Fill In” Steam Engine

“Fill In” Steam Engine

Craftsman: Birk Petersen

Catalog #: 2016.15.16

Donor: Mark Petersen

This one-cylinder vertical steam engine with a red flywheel was built by Birk as a “fill-in” project between other pieces.

“First of 2012” Steam Engine

“First of 2012” Steam Engine

Craftsman: Birk Petersen

Catalog #: 2016.15.47

Donor: Mark Petersen

This was the first steam engine that Birk built in 2012, hence the name. It’s a 2-cylinder marine type engine with crankshaft on the bottom.

“Gannet” Single-Cylinder, Water-Cooled Marine Engine

“Gannet” Single-Cylinder, Water-Cooled Marine Engine

Craftsman: Gannet Engines; Modified by Dick Pretel

Knapp Collection #: 180

Catalog #: 2008.16.31

Contributor: Paul Knapp

Dick Pretel modified the popular Gannet marine engine to suit his performance demands. His newly designed head included four valves and an extra exhaust pipe for better breathing.

“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. 

“Little Angel” Hit N’ Miss Engine

“Little Angel” Hit N’ Miss Engine

Craftsman: Roger Butzen

Knapp Collection #: 767

Catalog #: 2024.5.13

Contributor: Paul Knapp

This “Little Angel” hit n’ miss engine was originally designed by Bob Shores, and was built in 2000 by Roger Butzen.

“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.

Showing 20 of 679 exhibits.

Presented by The Joe Martin Foundation for Exceptional Craftsmanship