2-Cylinder Opposed Model Airplane Engine
Craftsman: Barry Robinson
Knapp Collection #: 144
Catalog #: 2008.10.42
Contributor: Paul Knapp
This engine has a bore of 19 mm and a stroke of 19.2 mm for a total displacement of 10.9 cc. The cylinders have chrome plated brass liners, and the pistons have compression rings.
2-Cylinder Opposed Model Airplane Engine
Craftsman: Alphonse C. Vassallo
Knapp Collection #: 231
Catalog #: 2009.9.36
Contributor: Paul Knapp
This two-cylinder, four-cycle engine is completely machined from steel and aluminum bar stock, including Al’s custom-designed carburetor.
252 Single-Cylinder Model Airplane Engine
Craftsman: Suevia
Knapp Collection #: 220
Catalog #: 2009.9.30
Contributor: Paul Knapp
The Suevia 252 single-cylinder model airplane engine was designed and built in the 1980s. The engine is 6”-long, 3.5”-wide, and 6”-high.
3-Cylinder Radial Model Airplane Engine
Craftsman: Unknown
Knapp Collection #: 175
Catalog #: 2008.16.28
Contributor: Paul Knapp
This radial engine features a single rocker box that houses both the intake and exhaust rockers, and uses only one large tube to enclose both pushrods.
3-Cylinder Radial Model Airplane Engine
Craftsman: 3W Engines
Knapp Collection #: 12
Catalog #: 2011.27.2
Contributor: Paul Knapp
This spark-ignition 2-cycle engine is composed of three single-cylinder engines geared together within one common crankcase.
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, 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.
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.
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.
Aero 35 Inline Model Airplane Engine
Craftsman: Aero
Catalog #: 2013.48.4
Contributor: Daniel "Buzz" Brunkow
With no speed control, this engine would have been used before the advent of radio control on U-control or free flight aircraft.
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.
Atwood & Adams 1946 Super Champion Model J
Craftsman: Atwood & Adams
Catalog #: 2010.2.1
Donor: Bob Stein
Listed as a Model J, Class C engine, this 2-cycle, 2-port engine uses rotary valves. It has a bore of .94″ and stroke of .900″ to displace .6245 cubic inches.
Showing 20 of 221 exhibits.