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, 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.
A-bone Cox .049 Tether Car
Craftsman: Doug Parker
Knapp Collection #: 429
Catalog #: 2016.8.20
Contributor: Paul Knapp
The “A-bone” Cox .049 tether car is 7-3/4″-long and 3-1/8″-wide. The racer was machined from aluminum, brass, and steel bar stock.
ADC Cirrus Engine
Craftsman: Eric Whittle
Knapp Collection #: 304
Catalog #: 2016.8.1a
Contributor: Paul Knapp
This 1/9 scale model ADC (or ACE) Cirrus airplane engine won first place at the North American Model Engineering Show (NAMES) in Wyandotte, MI.
All American Hot Rod
Craftsman: Tony Orlando
Knapp Collection #: 551
Catalog #: 2019.9.3
Contributor: Paul Knapp
This hot rod started as a die-cast push toy for kids, and was manufactured in Los Angeles in the 1950s. Mr. Orlando’s restoration included many modifications to convert it into a running tether car.
Aluminum Casting Kit for Duesenberg Tether Car
Craftsman: Wayne Short
Knapp Collection #: 425A
Catalog #: 2016.8.19
Contributor: Paul Knapp
This Aluminum casting kit for a Duesenberg tether race car was designed and built by Wayne Short, of CA, in 2010.
Anderson Spitfire .65 Model Airplane Engine
Craftsman: Marvin Miller
Knapp Collection #: 221
Catalog #: 2009.9.31
Contributor: Paul Knapp
This Anderson Spitfire .65 model airplane engine was built by Marvin Miller. The small engine weighs 2 lbs.
Anzani 3-Cylinder Fan Engine
Craftsman: Alfred Eichinger
Knapp Collection #: 100
Catalog #: 2008.16.16
Contributor: Paul Knapp
This 1/4 scale Anzani fan engine is 8”-long, 12”-wide, 9”-high, and weighs 3 lbs. 13 oz. The automatic inlet valves are situated inside the head where the intake pipe connects.
ARDUN V8 Flathead Ford Engine
Craftsman: Ron Bement
Knapp Collection #: 499
Catalog #: 2016.44.10
Contributor: Paul Knapp
This ARDUN V8 flathead Ford engine OHV conversion supports two water pumps, has a high efficiency aluminum radiator, and features a custom designed fuel injection system.
Associated Hired Man Engine
Craftsman: Herb Hodapp
Knapp Collection #: 376
Catalog #: 2013.53.6
Contributor: Paul Knapp
This Associated Hired Man engine used Paul Briesch castings. The engine is 19”-long, 8”-wide, 9”-high, and weighs 17 lbs. 12 oz.
Atkinson Cycle Engine
Craftsman: Ron Schindele
Knapp Collection #: 628
Catalog #: 2020.4.1
Contributor: Paul Knapp
Plans from Gingery Publications were the basis for Ron Schindele’s rendition of the Atkinson Cycle engine.
Atkinson Differential Engine
Craftsman: Roger Butzen
Knapp Collection #: 758
Catalog #: 2024.5.5
Contributor: Paul Knapp
This Atkinson differential engine was built by Roger Butzen of Texas.
Babcock Jr. Gas Powered Micro Rail Mite Racer
Craftsman: John D. Ellis
Knapp Collection #: 213
Catalog #: 2009.9.28
Contributor: Paul Knapp
John Ellis produced this miniature rail racer as a tribute to the late John Babcock, who was one of the most colorful builders and model racers in the San Francisco Bay area.
Bandicoot Experimental Model Airplane Engine
Craftsman: Rich Wiley
Knapp Collection #: 199
Catalog #: 2009.9.27
Contributor: Paul Knapp
This Bandicoot experimental model airplane engine has a bore of 1.160″ and a stroke of only .580″, yielding a total displacement of .609 cubic inches.
Bates and Edmonds Vertical Twin Engine
Craftsman: Ramon Hoagland
Knapp Collection #: 584
Catalog #: 2019.10.7
Contributor: Paul Knapp
This 1/8 scale Bates and Edmonds 25 HP vertical twin engine was built by Ramon Hoagland using Doug Kelley’s plans. The engine was built at 1/8 scale with a bore of 1 inch and a stroke of 1.187 inch.
Showing 20 of 391 exhibits.