TMN 4-Cycle, Sleeve-Valve Cutaway Engine

TMN 4-Cycle, Sleeve-Valve Cutaway Engine

Craftsman: Petr Chvatal

Knapp Collection #: 251

Catalog #: 2011.27.29

Contributor: Paul Knapp

The TMN 4-cycle, sleeve-valve cutaway airplane engine was built by Petr Chvatal. After completing only 10 engines, Petr produced a couple of the cutaways to demonstrate its operation.

Twin Webra .61 (Gear Driven)

Twin Webra .61 (Gear Driven)

Craftsman: Webra

Catalog #: 2012.19.3

Donor: Joe Bridi

Two counter-rotating Webra .61 engines drive a common propeller shaft through a geartrain. It has glow plug ignition.

U-22 Turbojet Model Aircraft Engine

U-22 Turbojet Model Aircraft Engine

Craftsman: Dennis Fadden

Knapp Collection #: 58

Catalog #: 2009.9.06

Contributor: Paul Knapp 

Dennis Fadden built this model jet engine from plans that were most likely from the 1950s.

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.

Varo Amp-Champ 12 VDC Field Generator

Varo Amp-Champ 12 VDC Field Generator

Craftsman: Varo Inc.

Donor: Joe Martin

The Varo Amp-Champ was powered by an Ohlsson & Rice 2-cycle, single-cylinder model airplane engine (Type 122) that was rated at 3/4 HP at 6,300 RPM.

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.

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.

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.

Wasp Jr. Single-Cylinder Model Airplane Engine

Wasp Jr. Single-Cylinder Model Airplane Engine

Craftsman: Bruce Satra

Knapp Collection #: 186

Catalog #: 2008.16.34

Contributor: Paul Knapp

Bruce Satra combined a Wasp Jr. cylinder assembly to a crankcase he machined from billet to produce this single-cylinder Wasp Jr. engine.

Whittle Robin Engine

Whittle Robin Engine

Craftsman: Eric Whittle

Knapp Collection #: 450

Catalog #: 2016.8.1b

Contributor: Paul Knapp

The “Robin” engine is Eric Whittle’s custom-made award presented to Jim Schiller for his extraordinary effort, recovery, and the successful return of Mr. Whittle’s Cirrus engine.

Wright Whirlwind J5 Model Airplane Engine

Wright Whirlwind J5 Model Airplane Engine

Craftsman: Charles “Chuck” Harty

Knapp Collection #: 522

Catalog #: 2017.27.13

Contributor: Paul Knapp 

This Wright Whirlwind J5 model airplane engine was designed by Carl-Eric Olsryd and built by Charles Harty. Castings, gears, and bearings were provided by Mr. Olsryd of Sweden.

YS .61 4-Cycle Engine

YS .61 4-Cycle Engine

Craftsman: YS

Catalog #: 2012.19.11

Donor: Joe Bridi

This YS .61 4-cycle engine was probably made for a model boat with a long drive shaft. It was made in Japan.

Showing 20 of 263 exhibits.

Presented by The Joe Martin Foundation for Exceptional Craftsmanship