1/4 Scale de Havilland Gipsy Inline Aero Engine
Craftsman: Phillip Duclos
Catalog #: 2013.50.5
Donor: George and Dorlene Root
This engine is based on the 1927 design for an aircraft engine to replace the Cirrus engine in the de Havilland DH.60 Moth biplane.
1/4 Scale Ferrari V-12 Engine
Craftsman: Bennie Vreeman
Knapp Collection #: 219
Catalog #: 2009.9.29
Contributor: Paul Knapp
This 1/4 scale Ferrari V-12 model auto engine is 12”-long, 8”-wide, and 6”-high. It has a bore of 1.160″ and a stroke of only .580″, yielding a total displacement of .609 cubic inches.
1/4 Scale Ford Model A Engine
Craftsman: Lee Root
Knapp Collection #: 103
Catalog #: 2009.9.16
Contributor: Paul Knapp
Lee Root produced this 1/4 scale replica of the 4-cylinder, water-cooled engine used in the famous Ford Model A automobile.
1/4 Scale Offenhauser 270 4-Cylinder Racing Engine
Craftsman: Jack Randall
Catalog #: 2018.18.3
Donor: Katherine Randall
This 1/4 scale Offenhauser 270 4-cylinder racing engine was built by Jack Randall using plans by Ron Colonna
1/4 Scale OFFY 270 Engine With Fuel Injection
Craftsman: Ron Bement
Knapp Collection #: 497
Catalog #: 2016.44.8
Contributor: Paul Knapp
This 1/4 scale “OFFY” 270 engine burns gasoline on spark ignition, sports a pressurized fuel system, has dry sump lubrication, and an aluminum radiator.
1/4 Scale Red Wing Stationary Engine
Craftsman: Tim Junk
Knapp Collection #: 531
Catalog #: 2017.27.4
Contributor: Paul Knapp
This 1/4 scale Red Wing stationary engine measures 14.5”-long, 9.5”-wide, and 13.5”-tall including the oiler and base. It has a bore of 1.25” and a stroke of 2”.
1/4 Scale Small Block Chevy V-8 Engine
Craftsman: Lee Root
Knapp Collection #: 102
Catalog #: 2009.9.15
Contributor: Paul Knapp
Lee Root machined 7075 aircraft grade aluminum to produce the crankcase, heads, rods and pistons for this Chevy Corvette small block V-8.
1/4 Scale Wright Brothers Flyer by Robert Cooper
Craftsman: Robert Cooper
Catalog #: 2014.9.1
Contributor: Paul Knapp
This 1/4 scale model Wright Brothers Flyer has a nearly 12′ wingspan, and is historically correct in every detail. It is one of two identical models built by Robert Cooper.
1/6 Scale 1932 Duesenberg SJ
Craftsman: Louis Chenot
Catalog #: 2013.51.1
Donor: Louis Chenot
Louis Chenot’s incredible 1/6 scale model 1932 Duesenberg SJ features a running straight-eight, 32-valve engine, working transmission with reverse, battery-powered operating lights, and more.
1/6 Scale Bentley BR2 Rotary Aircraft Engine
Craftsman: Louis Chenot
Catalog #: 2013.51.2
Donor: Louis Chenot
This 1/6 scale Bentley BR2 rotary aircraft engine is fully operational and took Louis Chenot about 3-1/2 years to build.
1/6 Scale Cirrus Model Airplane Engine
Craftsman: Charles “Chuck” Harty
Knapp Collection #: 519
Catalog #: 2017.27.14
Contributor: Paul Knapp
This is Chuck Harty’s rendition of the 1/6 scale Cirrus designed by Merritt Zimmerman. It is 7”-long, 6”-high, 3”-wide, and weighs 2 pounds 9 ounces on the aluminum base.
1/6 Scale Gar Wood 33-50 Runabout With V-12 Liberty Engine
Craftsman: Louis Chenot
Catalog #: 2024.2.1
Donor: Louis Chenot
After six years of labor, Louis Chenot completed his scratch-built 1/6 scale Gar Wood 33-50 Runabout with V-12 Liberty marinized aircraft engine.
100cc 2-Cylinder Opposed Aircraft Engine
Craftsman: Unknown
Knapp Collection #: 187
Catalog #: 2008.16.35
Contributor: Paul Knapp
Commercially available cylinders, possibly from a motorcycle, were used to produce this aircraft engine in Germany.
14-Cylinder, Twin-Row Radial Engine
Craftsman: Dennis Fadden
Knapp Collection #: 04
Catalog #: 2008.16.01
Contributor: Paul Knapp
This 1/8 scale 14-cylinder radial engine model operates on regular gasoline with spark ignition and swings a 12-inch diameter propeller.
18-Cylinder, Two-Row Radial Engine
Craftsman: Harold Beckett
Knapp Collection #: 41
Catalog #: 2008.16.06
Contributor: Paul Knapp
Harold Beckett handcrafted this 1/4 scale engine from drawings provided by Sam and Lee Hodgeson. The engine operates on regular gasoline with dual spark ignition.
1937 Harley-Davidson “Knucklehead” Motorcycle Engine
Craftsman: Replica Engines
Knapp Collection #: 99
Catalog #: 2009.9.13
Contributor: Paul Knapp
This 1/4 scale model 1937 Harley-Davidson “Knucklehead” motorcycle engine is 9”-long, 9”-wide, and 9”-high.
2-Cylinder Flame Licker Engine
Craftsman: Alphonse C. Vassallo
Knapp Collection #: 229
Catalog #: 2009.9.34
Contributor: Paul Knapp
This 2-cylinder flame licker engine is 12″-long, 6.5″-wide, 3.5″-high, and weighs 7 lbs. These engines are variously called vacuum, flame-licker or flame-gulper engines.
2-Cylinder Horizontal Steam Engine With Twin Flywheels
Craftsman: Unknown
Catalog #: 2011.11.1
Donor: Joe Kunkler
This twin flywheel engine features a complicated regulator mechanism within the flywheel and rotary valves.
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.
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