Craftsman: John Swartzwelder
Knapp Collection #: 207
Catalog #: 2008.16.48
Contributor: Paul Knapp
John Swartzwelder fabricated several small multi-cylinder aircraft engines from commercially available Cox .049, .020, and .010 cc model airplane engines.
Craftsman: John Swartzwelder
Knapp Collection #: 206
Catalog #: 2008.16.49
Contributor: Paul Knapp
John Swartzwelder fabricated several small multi-cylinder aircraft engines from commercially available Cox .049, .020, and .010 cc model airplane engines.
Craftsman: John Swartzwelder
Knapp Collection #: 205
Catalog #: 2008.16.47
Contributor: Paul Knapp
John Swartzwelder fabricated several small multi-cylinder aircraft engines from commercially available Cox .049, .020, and .010 cc model airplane engines.
Craftsman: John Swartzwelder
Knapp Collection #: 204
Catalog #: 2008.16.46
Contributor: Paul Knapp
John Swartzwelder fabricated several small multi-cylinder aircraft engines from commercially available Cox .049, .020, and .010 cc model airplane engines.
Craftsman: Birk Petersen
Catalog #: 2016.15.19
Donor: Mark Petersen
The pistol was “decommissioned” so that it will not actually fire .22 cartridges, although it duplicates all functions of the original.
Craftsman: Marshall Ziegert
Catalog #: 2016.8.14
Contributor: 419
This ’32 Ford tether car measures about 7 inches wide, 4.25 inches high, 13 inches long, and weighs 6.25 pounds.
Craftsman: Richard Docken
Catalog #: 2014.2.1
Donor: Donald Woods
Richard Docken’s wooden HO scale model of the Cyclone Racer roller coaster. The model is about 6-feet long and made from thousands of pieces of balsa wood.
Craftsman: Noel Jensen
Knapp Collection #: 85
Catalog #: 2008.10.26
Contributor: Paul Knapp
To achieve more power, Noel Jensen added two more cylinders and produced this flat 4-cylinder opposed engine dubbed the “Dominator.”
Craftsman: John Nuovo
Knapp Collection #: 132
Catalog #: 2008.10.37
Contributor: Paul Knapp
The Green Dragon burns methanol with castor oil mixed in for lubrication on spark ignition. The engine is 7″-long, 5″-wide, and 6″-high.
Craftsman: John Nuovo
Knapp Collection #: 133
Catalog #: 2008.10.38
Contributor: Paul Knapp
This two-cycle, air-cooled Green Dragon automobile engine was named for its green crackle paint finish. This engine is 7″-long, 5″-wide, and 6″-high.
Craftsman: Mr. Hallock
Catalog #: 2011.4.3
Donor: Les Cade
This “Hired Man” hit n’ miss engine features a governor in the center of one of the 6″ flywheels, and spark is provided by a Model T Ford ignition coil.
Craftsman: Dick Pretel
Knapp Collection #: 181
Catalog #: 2008.16.32
Contributor: Paul Knapp
From approximately six sets of castings made by Ken Brennerman in the mid 1930s, this is the only known surviving engine.
Craftsman: American Miniature Gun & Cartridge Co.
Catalog #: 2008.14.1
Donor: Bob Mellman
The “Little .45” is a miniature replica of the famous Colt .45 Peacemaker, and actually fires small percussion cap-like blanks.
Craftsman: Mr. Hallock
Catalog #: 2011.4.2
Donor: Les Cade
This “Little Brother” hit n’ miss engine features a governor in the center of one of the flywheels, and spark is provided by a Model T Ford ignition coil.
Craftsman: Mr. Hallock
Catalog #: 2011.4.6
Donor: Les Cade
This water-cooled “Little Brother” hit n’ miss engine features a governor in the center of one of the 4.5″ flywheels.
Craftsman: Noel Jensen
Knapp Collection #: 84
Catalog #: 2008.10.25
Contributor: Paul Knapp
A rotary valve, twin-cylinder, air-cooled engine named “Little Dominator.” The 1″-bore and 1.1″-stroke engine turns a 16/6 propeller at 6,000 rpm.
Craftsman: Maxse Tayler
Knapp Collection #: 126
Catalog #: 2008.10.36
Contributor: Paul Knapp
Maxse Tayler used the piston and cylinder assemblies from the commercially manufactured Saito 120 model airplane engines to build this 7-cylinder radial.
Craftsman: Profi M. E.
Knapp Collection #: 112
Catalog #: 2008.10.31
Contributor: Paul Knapp
This 1/12 scale “Micro Cirrus” engine runs on methanol with glow ignition, and is among the smallest multi-cylinder 4-cycle engines in the world.
Craftsman: Ron Valentine
Knapp Collection #: 135
Catalog #: 2008.10.39
Contributor: Paul Knapp
This “Rasant MKIII” Diesel engine operates like an inline engine. It is 2.5″-long, 3″-wide, and 2″-high.
Craftsman: Lee Root
Knapp Collection #: 104
Catalog #: 2009.9.17
Contributor: Paul Knapp
The “Root Special” is machined entirely from 7075 aluminum bar stock and utilizes no castings. The aluminum parts were clear anodized to produce the color and finish.
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