V12 Air-Cooled OHV Model Boat Engine

V12 Air-Cooled OHV Model Boat Engine

Craftsman: Unknown

Knapp Collection #: 177

Catalog #: 2008.10.51

Contributor: Paul Knapp

This 60-degree, overhead valve V-12 engine was machined from billet aluminum (bar stock) with cast iron lined cylinders.

Valentine “Blitz” 1-Cylinder Diesel Engine

Valentine “Blitz” 1-Cylinder Diesel Engine

Craftsman: Ron Valentine

Knapp Collection #: 115

Catalog #: 2008.10.33

Contributor: Paul Knapp

The Valentine “Blitz” Diesel engine was designed and built by Ron Valentine. Mr. Valentine’s engines are among the smallest in the world.

Valentine “Rasant” 1-Cylinder Diesel Engine

Valentine “Rasant” 1-Cylinder Diesel Engine

Craftsman: Ron Valentine

Knapp Collection #: 116

Catalog #: 2008.10.34

Contributor: Paul Knapp

The Valentine “Rasant” Diesel engine is among the smallest in the world. The 2-cycle engine burns a special Diesel fuel that is less viscous and produces combustion when head and pressure are applied.

Valentine Mini Single Engine

Valentine Mini Single Engine

Craftsman: Ronald Valentine

Knapp Collection #: 245

Catalog #: 2011.32.3

Contributor: Paul Knapp 

The Valentine mini single-cylinder model airplane engine runs on methanol with glow ignition using custom made glow plugs.

Vega .61 4-Cycle, Side-Valve Model Airplane Engine

Vega .61 4-Cycle, Side-Valve Model Airplane Engine

Craftsman: John Harbone

Knapp Collection #: 249

Catalog #: 2011.27.27

Contributor: Paul Knapp 

The Vega .61 4-cycle, side-valve model airplane engine was built by John Harbone The engine was machined in small quantities from aluminum and steel bar stock

Vega 50 T 2-Cylinder Opposed Model Airplane Engine

Vega 50 T 2-Cylinder Opposed Model Airplane Engine

Craftsman: J.C. Harbone

Knapp Collection #: 172

Catalog #: 2008.16.26

Contributor: Paul Knapp

This Vega 50 T is an 8.5 cc four-cycle, side-valve (or flat-head), two-cylinder aircraft engine that burns methanol (methyl alcohol) on glow ignition.

Vertical Vapor Hit N’ Miss Engine

Vertical Vapor Hit N’ Miss Engine

Craftsman: Ron Schindele

Knapp Collection #: 676

Catalog #: 2021.9.10

Contributor: Paul Knapp

This vertical vapor hit n’ miss engine burns fumes that evaporate off the surface of the fuel inside the tank.

Wall 4-Cylinder Water-Cooled Engine

Wall 4-Cylinder Water-Cooled Engine

Craftsman: Russell Anderson

Catalog #: 2019.21.11 

Contributor: Steve Anderson

Several engines built by Russell Anderson, including this Well 4-cylinder 50cc water-cooled engine, are on display in the Miniature Engineering Craftsmanship Museum.

Wall Duplex Mariner

Wall Duplex Mariner

Craftsman: Elmer A. Wall

Knapp Collection #: 79

Catalog #: 2008.16.13

Contributor: Paul Knapp

This Duplex Mariner engine, circa 1940-41, is 9”-long, 6”-wide, and 8”-high.

Wall F Head Inline 4-Cylinder Engine

Wall F Head Inline 4-Cylinder Engine

Craftsman: Dick Pretel

Knapp Collection #: 592

Catalog #: 2019.11.5 

Contributor: Paul Knapp 

This highly modified Wall F Head inline 4-cylinder sports a side-valve exhaust and an overhead valve intake system.

Wall OHV Inline 4-Cylinder Engine

Wall OHV Inline 4-Cylinder Engine

Craftsman: Dick Pretel

Knapp Collection #: 590

Catalog #: 2019.11.3

Contributor: Paul Knapp 

This Wall OHV inline 4-cylinder engine was made by Dick Pretel. All of the components, other than the crankcase, were machined from 7075 aluminum, steel, stainless steel, and thermoplastic.

Wall Wizard Engine Casting Kit

Wall Wizard Engine Casting Kit

Craftsman: Elmer Wall

Catalog #: 2011.29.1

Donor: Fred Zimmerman

An unfinished casting kit for a Wall Wizard engine, which was designed and produced by Elmer Wall.

Wall Wizard Opposed Twin Engine

Wall Wizard Opposed Twin Engine

Craftsman: Roger Butzen

Knapp Collection #: 757

Catalog #: 2024.5.4

Contributor: Paul Knapp

Roger Butzen, of Texas, built this Wall Wizard opposed twin engine.

Wall Wizard Water-Cooled 4-Cycle Model Boat Engine

Wall Wizard Water-Cooled 4-Cycle Model Boat Engine

Craftsman: Dick Pretel

Knapp Collection #: 262

Catalog #: 2011.27.34

Contributor: Paul Knapp 

Mr. Pretel built this engine from a standard Wall Wizard casting kit, but modified the cylinders for water cooling instead of air.

Wankel (Mazda Type) Rotary Engine

Wankel (Mazda Type) Rotary Engine

Craftsman: Henry Parohl

Knapp Collection #: 123

Catalog #: 2008.16.19

Contributor: Paul Knapp

This Wankel (Mazda type) rotary engine is a two-cycle that burns gasoline with oil mixed in for lubrication. The engine is 6”-long, 7”-wide, and 6”-high.

Warner Large Scale 5-Cylinder Radial Aircraft Engine

Warner Large Scale 5-Cylinder Radial Aircraft Engine

Craftsman: Wally Warner

Knapp Collection #: 214

Catalog #: 2011.27.18

Contributor: Paul Knapp 

It took Mr. Warner about two years to produce the molds, the aluminum castings, and to machine all the parts to build this 5-cylinder radial aircraft engine.

Showing 20 of 449 exhibits.

Presented by The Joe Martin Foundation for Exceptional Craftsmanship