Seidel ST 726 7-Cylinder Radial Model Aircraft Engine

Seidel ST 726 7-Cylinder Radial Model Aircraft Engine

Craftsman: Wolfgang Seidel

Knapp Collection #: 55

Catalog #: 2008.10.15

Contributor: Paul Knapp

The ST 726 weighs approximately 16 pounds. It burns methanol with castor oil mixed in for lubrication, and swings a 32-12 propeller at 4,500 rpm.

Shovelnose Hydro Tether Boat With 2-Cylinder Engine

Shovelnose Hydro Tether Boat With 2-Cylinder Engine

Craftsman: Unknown

Knapp Collection #: 416

Catalog #: 2016.8.12

Contributor: Paul Knapp

This sleek looking hydro measures 11″-wide, 30.5″-long, and sports a custom built two-cylinder, two-cycle, alternate firing twin with a double throw crank.

Silver Angel Gas Engine

Silver Angel Gas Engine

Craftsman: Birk Petersen

Catalog #: 2016.15.49

Donor: Mark Petersen

Birk’s rendition of the single-cylinder “Silver Angel” gas engine designed by Bob Shores.

Silver Angel Hit-N-Miss Engine

Silver Angel Hit-N-Miss Engine

Craftsman: Jack Randall

Catalog #: 2018.18.4

Donor: Katherine Randall

This single-cylinder, 4-cycle, air-cooled hit-n-miss engine was built by Jack Randall and designed by Bob Shores.

Silver Angel Vertical Stationary Engine

Silver Angel Vertical Stationary Engine

Craftsman: Ramon Hoagland

Knapp Collection #: 613

Catalog #: 2019.33.10

Contributor: Paul Knapp

This Silver Angel vertical stationary engine was built by Ramon Hoagland, of Colorado, in 2017.

Silver Dollar Oscillating Steam Engine

Silver Dollar Oscillating Steam Engine

Craftsman: Unknown

Catalog #: 2011.4.14

Donor: Les Cade

This “Silver Dollar” oscillating steam engine is unusual in that the flywheel is made from a bicentennial Eisenhower silver dollar.

Silver Dollar Steam Engine

Silver Dollar Steam Engine

Craftsman: Les Cade

Catalog #: 2012.31.3

Donor: Owen Cade

This Silver Dollar steam engine was originally made to be handheld over a flame for boiling water.

Single-Cylinder .60 Model Airplane Engine

Single-Cylinder .60 Model Airplane Engine

Craftsman: Unknown

Knapp Collection #: 346

Catalog #: 2016.8.3

Contributor: Paul Knapp

This single-cylinder air-cooled .60 size engine was machined from aluminum and steel bar stock and designed to burn methanol on spark ignition.

Single-Cylinder Brass Steam Engine

Single-Cylinder Brass Steam Engine

Craftsman: Les Cade

Catalog #: 2011.4.23

Donor: Les Cade

This single-cylinder brass engine was the first steam project produced by Les Cade.

Single-Cylinder Hit N’ Miss Engine

Single-Cylinder Hit N’ Miss Engine

Craftsman: Unknown Canadian Manual Arts Class

Catalog #: 2011.4.4

Donor: Les Cade

In the 1930s in Canada, this single-cylinder hit n’ miss engine was reportedly built by manual arts students as a class project.

Single-Cylinder Horizontal Gas Hit N’ Miss Engine

Single-Cylinder Horizontal Gas Hit N’ Miss Engine

Craftsman: Mr. Hallock

Catalog #: 2011.4.5

Donor: Les Cade

This single-cylinder horizontal gas hit n’ miss engine is ungoverned and features a chain driven water pump, model airplane carburetor, and twin cams.

Single-Cylinder Marine Gas Engine

Single-Cylinder Marine Gas Engine

Craftsman: Bill Fowler

Catalog #: 2011.4.7

Donor: Les Cade

This single-cylinder marine gas engine was built by Bill Fowler. This particular water-cooled engine features an Amal motorcycle carburetor.

Single-Cylinder OHC Air-Cooled Demonstration Engine

Single-Cylinder OHC Air-Cooled Demonstration Engine

Craftsman: ELWE Educational Products

Knapp Collection #: 347

Catalog #: 2013.53.1

Contributor: Paul Knapp

This. single-cylinder OHC air-cooled demonstration engine was made in Germany in the 1990s. The engine is 8”-long, 16”-wide, 8”-high, and weighs 8 oz.

Showing 20 of 666 exhibits.

Presented by The Joe Martin Foundation for Exceptional Craftsmanship