Racing Class Model Airplane

Racing Class Model Airplane

Craftsman: Joe Bridi

Catalog #: 2015.34.3

Donor: Joe Bridi

This racing class model airplane was built and used by Joe Bridi from 1974-75.

Racing Thunderbird Model Airplane Engine

Racing Thunderbird Model Airplane Engine

Craftsman: Scott Motors, Inc.

Knapp Collection #: 142

Catalog #: 2008.16.22

Contributor: Paul Knapp

A Racing Thunderbird (Hayward-Connelly) engine, manufactured by Scott Motors, Inc. The engine is 5”-long, 4”-wide, and 6”-high.

Railroad Section Car

Railroad Section Car

Craftsman: Birk Petersen

Catalog #: 2016.15.27

Donor: Mark Petersen

A railroad section car or handcar operated by the up/down strokes of a central hammer by a crew of one or two.

Ram Water Pump

Ram Water Pump

Craftsman: Birk Petersen

Catalog #: 2016.15.76

Donor: Mark Petersen

Birk’s miniature hydraulic Ram water pump takes water from one source and lifts a portion of it to a higher elevation.

Rasp Holder

Rasp Holder

Craftsman: Unknown

Catalog #: 2011.17.1

Donor: Norman Palmer

This brass rasp holder is used or woodworking.

Rat Rod Tether Truck

Rat Rod Tether Truck

Craftsman: Doug Parker

Knapp Collection #: 495

Catalog #: 2016.47.1

Contributor: Paul Knapp

The Rat Rod tether truck measures 7-3/4″-long, 2-5/8″-high, and 3″-wide at the rear tires. It was machined from aluminum and steel bar stock.

RC Formula 1 Pylon Racer

RC Formula 1 Pylon Racer

Craftsman: Lyle Larson

Catalog #: 2011.6.1

Donor: Joe Martin

This RC Formula 1 pylon racer is brand new, having never actually been flown.

RCS 400 5-Cylinder Radial Airplane Engine

RCS 400 5-Cylinder Radial Airplane Engine

Craftsman: Moki, Inc.

Knapp Collection #: 201

Catalog #: 2008.16.43

Contributor: Paul Knapp

This RCS 400cc radial burns a gasoline/oil mixture on spark ignition. The unique electronic ignition utilizes a miniature high tension coil located at each spark plug.

RCV .60 Engine

RCV .60 Engine

Craftsman: RCV

Catalog #: 2012.19.7

Donor: Joe Bridi

This RCV .60 was made in England, and operates on glow ignition. The 4-stroke engine put out 0.9 HP on 10% nitro, and offered a 2:1 gear reduction.

RCV 60 Sleeve Valve Cutaway Engine

RCV 60 Sleeve Valve Cutaway Engine

Craftsman: RCV Engines

Knapp Collection #: 271

Catalog #: 2011.27.39

Contributor: Paul Knapp 

This RCV 60 sleeve valve cutaway engine was designed and built by RCV Engines. The cylinder liner rotates one time for every four strokes of the crankshaft.

Rearwin Speedster

Rearwin Speedster

Craftsman: Ralph Sarosi

Catalog #: 2013.35.12

Donor: Joe Bridi

A wooden model Rearwin Speedster airplane. Originally designed before the Great Depression, only two protypes were built before production ceased.

Reciprocating Saw

Reciprocating Saw

Craftsman: Theodore Carder

Catalog #: 2021.11.4

Donor: Susi Trumbo

Like many of Theodore Carder’s small engineering projects, this reciprocating saw is actually functional.

Red Wing Stationary Engine

Red Wing Stationary Engine

Craftsman: Harold Beckett

Knapp Collection #: 64

Catalog #: 2009.9.07

Contributor: Paul Knapp 

Harold Beckett built this 1/4 scale model Red Wing stationary engine from a casting kit in the mid-1990s. It has a bore of 1.125″, a 2″ stroke and burns gasoline on spark ignition.

Reversible Hot Air Engine

Reversible Hot Air Engine

Craftsman: Daniel L. Fountain

Catalog #: 2018.44.1

Donor: Daniel L. Fountain

This directionally reversible hot air engine was built and donated by Daniel L. Fountain.

Rider Ericsson Hot Air Engine

Rider Ericsson Hot Air Engine

Craftsman: Roger Butzen

Knapp Collection #: 754

Catalog #: 2024.5.1

Contributor: Paul Knapp

This Rider Ericsson hot air engine was built by Roger Butzen of Texas.

Showing 20 of 1294 exhibits.

Presented by The Joe Martin Foundation for Exceptional Craftsmanship