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 Cycle Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.59
Donor: Mark Petersen
A miniature 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.
Atwood .051 Model Outboard Boat Engine
Craftsman: Atwood
Catalog #: 2013.48.3
Contributor: Daniel "Buzz" Brunkow
This Atwood .051 model boat engine is a rare twin-cylinder gas powered outboard with large, polished front gas tank.
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.
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.
Bennett Water-Cooled Opposed Twin Engine
Craftsman: Paul Bennett
Knapp Collection #: 247
Catalog #: 2011.27.25
Contributor: Paul Knapp
This opposed water-cooled twin engine has a 1-inch bore with a 3/4-inch stroke, double throw crank, and runs on gasoline with spark ignition.
Bentley BR2 Rotary Aero Engine
Craftsman: Paul Knapp
Knapp Collection #: 03
Catalog #: 2008.10.2
Contributor: Paul Knapp
A 1/4 Scale Bentley 9-cylinder rotary engine built by Paul Knapp.
Berger 2-Cycle Radial Engine
Craftsman: Lee Berger
Knapp Collection #: 424
Catalog #: 2016.8.17
Contributor: Paul Knapp
This Berger 2-cycle radial aircraft engine is model 7455-11. It measures 11″ in diameter, 10″-long, sports K&B .61 cylinders and heads, and is designed to burn methanol on glow ignition.
Berger 7-Cylinder Radial Model Airplane Engine
Craftsman: Lee Berger
Knapp Collection #: 47
Catalog #: 2008.10.13
Contributor: Paul Knapp
This is the first successful 2-cycle radial engine using a common crankshaft with a master rod and articulating rods inside a common crankcase.
Bosh Water-Cooled Inline 4-Cylinder Engine
Craftsman: Bob Shores
Knapp Collection #: 440
Catalog #: 2016.8.23
Contributor: Paul Knapp
The Bosh is water-cooled 4-cylinder 40cc inline auto engine designed to burn gasoline on spark ignition.
Boxer 2-Cylinder Opposed Aircraft Engine
Craftsman: Unknown
Knapp Collection #: 154
Catalog #: 2008.16.23
Contributor: Paul Knapp
The maker of this Boxer 2-cylinder opposed aircraft engine is unknown, but it came from Germany. The engine is 9”-long, 9”-wide, and 7”-high.
Britnell Original Design Radial Engine
Craftsman: George Britnell
Catalog #: 2019.23.1
Donor: George Britnell
George’s radial has a bore and stroke of .625 x .600. Designed and built in 2012, it took about 600 hours to complete.
Brodbeck Side Port .60 Tether Car Engines
Craftsman: John Brodbeck
Knapp Collection #: 638, 639, 640
Catalog #: 2021.9.1
Contributor: Paul Knapp
These Brodbeck side port .60 tether car engines are presumed to have been built by John Brodbeck in the mid-1940s.
Bruce Macbeth Inline Four Engine
Craftsman: Ramon Hoagland
Knapp Collection #: 740
Catalog #: 2023.2.6
Contributor: Paul Knapp
This Bruce Macbeth inline four engine is 13.5″-long, 12″-wide, 11″-high, and weighs about 20 lbs.
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