3-Cylinder Radial Steam Engine
Craftsman: Rudy Kouhoupt
Donor: Susan Alvaro
This 3-cylinder radial steam engine can also be hooked up to run on compressed air.
3/10 Scale John Deere “E” 1.5 HP Stationary Engine
Craftsman: Bob Haagenson
Knapp Collection #: 447
Catalog #: 2016.8.25
Contributor: Paul Knapp
Among the many engines Bob Haagenson built is this 3/10 scale John Deere E 1.5 HP stationary engine kitted by Dinky Deeres.
3/4″-Scale Live Steam 4-6-4 Locomotive
Craftsman: Robert Earl "Toby" Rutherford
Catalog #: 2015.19.1
Contributor: Don Rutherford
Toby Rutherford built this coal burning steam engine from scratch using plans by Martin S. Lewis of “Little Engines.”
4-8-4 Wooden Steam Locomotive & Tender
Craftsman: Eckhard Fadtke
Catalog #: 2019.2.1
Donor: Eckhard Fadtke
This wooden model 4-4-8 steam locomotive & tender features an abundance of detail in the woodworking.
4-Cylinder, Water-Cooled Inline Boat Engine
Craftsman: Unknown
Knapp Collection #: 255
Catalog #: 2011.27.31
Contributor: Paul Knapp
This 4-cycle water-cooled marine engine burns methanol or gasoline on glow ignition and sports an electric starter.
4-Port Riley Model A Racing Engine
Craftsman: Ron Bement
Knapp Collection #: 498
Catalog #: 2016.44.9
Contributor: Paul Knapp
This 4-port Riley Model A racing engine OHV conversion measures 14″-wide, 13″-tall, 18.5″-long, and weighs 25 pounds.
426 Hemi Powered Cobra
Craftsman: Roger Butzen
Knapp Collection #: 783
Catalog #: 2024.5.19
Contributor: Paul Knapp
Roger Butzen built this 426 hemi powered Cobra and modified the miniature car to be operated by radio control.
5-Cylinder Diesel Radial Engine
Craftsman: Ronald Valentine
Knapp Collection #: 253
Catalog #: 2011.27.8
Contributor: Paul Knapp
This is perhaps the smallest Diesel radial engine in the world with a bore of only 5mm and a stroke of 5mm; total displacement of .49ccm.
5-Cylinder Radial Aircraft Engine
Craftsman: Roger Paul
Knapp Collection #: 254
Catalog #: 2011.27.32
Contributor: Paul Knapp
Mr. Paul used a few Morton M5 parts to construct three of these 5-cylinder radial engines between 1978-1981.
5-Cylinder Radial Airplane Engine
Craftsman: Miniature Aircraft Corporation of New York
Knapp Collection #: 291
Catalog #: 2011.32.11
Contributor: Paul Knapp
In 1931, the Miniature Aircraft Corporation of New York advertised a compressed air four-cylinder radial engine made from aluminum alloy with brass heads.
5-Cylinder Radial Model Aircraft Engine
Craftsman: Henry Parohl
Knapp Collection #: 107
Catalog #: 2009.9.18
Contributor: Paul Knapp
This 5-cylinder radial model aircraft engine was designed and built by Henry Parohl circa 1960. The engine is 11”-long, 10”-wide, and 9”-high.
5-Cylinder Radial Model Airplane Engine
Craftsman: Barry Robinson
Knapp Collection #: 143
Catalog #: 2008.10.41
Contributor: Paul Knapp
This is an all-aluminum bar stock engine with a bore of 19 mm, stroke of 19.2 mm and a total displacement of 27.21 cc.
5-Cylinder Radial Model Airplane Engine
Craftsman: Alphonse C. Vassallo
Knapp Collection #: 235
Catalog #: 2009.9.40
Contributor: Paul Knapp
It took about a year to design and build this 5-cylinder radial engine, including the carburetor, which incorporates a built-in choke mechanism. It is completely machined from aluminum and steel bar stock.
5-Cylinder Radial Steam Engine
Craftsman: Rudy Kouhoupt
Donor: Susan Alvaro
This 5-cylinder radial airplane engine runs on steam, but can also be hooked up to run on compressed air.
5-Cylinder, 4-Cycle Radial Engine
Craftsman: Ronald Valentine
Knapp Collection #: 246
Catalog #: 2011.32.4
Contributor: Paul Knapp
This 5-cylinder, 4-cycle radial engine runs on methanol with glow ignition using custom made glow plugs. It measures 3.25-inches in diameter.
6-Cylinder Experimental Rotary Engine
Craftsman: Bell Lab Engineers and J.W. Kijowski
Knapp Collection #: 265
Catalog #: 2011.27.36
Contributor: Paul Knapp
Little is known about this “proof of concept” 6-cylinder experimental rotary engine. The cylinders are arranged in two rows of three, and the rows are staggered.
6-Girls-6 Dollhouse Room
Craftsman: Sara Botts
Catalog #: 2019.5.2
Donor: Van Botts
This dollhouse diorama entitled, “6-Girls-6,” was built by Sara Botts.
77 Products/Merco .61 Engine
Craftsman: 77 Products
Catalog #: 2012.19.12
Donor: Joe Bridi
This engine was made in the U.S. by 77 Products using a British Merco 61 crankcase and innards. The polished head is the main difference from the standard engine.
8-Pound Baby Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.29
Donor: Mark Petersen
This “8-Pound Baby” engine was built from plans in a 1947 issue of Popular Science magazine.
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