Single-Cylinder Horizontal Gas Hit N’ Miss Engine
Craftsman: Mr. Hallock
Catalog #: 2011.4.5
Donor: Les Cade
This single-cylinder horizontal gas hit n’ miss engine is ungoverned and features a chain driven water pump, model airplane carburetor, and twin cams.
Single-Cylinder Marine Gas Engine
Craftsman: Bill Fowler
Catalog #: 2011.4.7
Donor: Les Cade
This single-cylinder marine gas engine was built by Bill Fowler. This particular water-cooled engine features an Amal motorcycle carburetor.
Single-Cylinder OHC Air-Cooled Demonstration Engine
Craftsman: ELWE Educational Products
Knapp Collection #: 347
Catalog #: 2013.53.1
Contributor: Paul Knapp
This. single-cylinder OHC air-cooled demonstration engine was made in Germany in the 1990s. The engine is 8”-long, 16”-wide, 8”-high, and weighs 8 oz.
Single-Cylinder OHV Engine
Craftsman: Phillip Duclos
Catalog #: 2013.50.3
Donor: George and Dorlene Root
Two external pushrods activate the overhead valves on this single-cylinder IC engine.
Single-Cylinder, 4-Cycle Air-Cooled Engine
Craftsman: Unknown
Knapp Collection #: 285
Catalog #: 2011.27.41
Contributor: Paul Knapp
This model engine was almost completely machined from aluminum and steel bar stock. The cylinder is a modified 2-cycle cylinder that was converted to operate on this 4-cycle engine.
Single-Cylinder, 4-Cycle Model Airplane Engine
Craftsman: Unknown
Knapp Collection #: 210
Catalog #: 2011.27.17
Contributor: Paul Knapp
This single-cylinder, 4-cycle model airplane engine has a 3/4-inch bore, a 1.0-inch stroke, and it burns methanol on glow ignition.
Single-Cylinder, Air-Cooled, Four-Cycle OHV Engine
Craftsman: Unknown
Knapp Collection #: 174
Catalog #: 2008.16.27
Contributor: Paul Knapp
The most striking features of this engine are the complexity of the carburetor, and the use of only one threaded stud to mount both the intake and exhaust manifold.
Sir William Horizontal Twin Pumping Engine
Craftsman: Ramon Hoagland
Knapp Collection #: 665
Catalog #: 2021.9.3
Contributor: Paul Knapp
This Sir William horizontal twin pumping engine was made by Ramon Hoagland of Colorado.
SJ-10 Turbojet Engine
Craftsman: Mike Early
Knapp Collection #: 588
Catalog #: 2019.11.1
Contributor: Paul Knapp
This SJ-10 Turbojet engine was made from a turbocharger with a combustion system added and it runs on propane. Mike provided plans to jet engine enthusiasts worldwide.
Skylark 2-Cycle Marine Engine
Craftsman: Gerald Smith
Knapp Collection #: 301
Catalog #: 2011.35.8
Contributor: Paul Knapp
The Skylark 2-cycle marine engine was designed and built by Gerald Smith, of the UK. Mr. Smith manufactured over 300 engines from 1922 to the mid-1980s.
Snow Gas Pumping Engine
Craftsman: Ramon Hoagland
Knapp Collection #: 691
Catalog #: 2022.8.2
Contributor: Paul Knapp
This Snow gas pumping engine was built by Ramon Hoagland. The original engine was designed by Doug Kelley.
Snow Horizontal Engine (In Progress)
Craftsman: Pamela Weiss
Contributor: Pamela Weiss
This unfinished Snow horizontal engine is being built by Pamela Weiss from plans in The Home Shop Machinist.
Snow Tandem, Double-Acting Engine (Prototype)
Craftsman: Doug Kelley
Catalog #: 2016.10.1
Donor: Doug Kelley
Doug Kelley designed and built this scale model Snow tandem, double-acting engine. He published his plans for the engine in The Home Shop Machinist magazine.
Sorrel 2-Cylinder Inline Model Boat Engine
Craftsman: Col. James Sorrel
Knapp Collection #: 275
Catalog #: 2011.27.40
Contributor: Paul Knapp
Col. James Sorrel utilized commercial piston and cylinder assemblies to produce his custom-built 2-cylinder racing engines.
Springfield A.1 Single-Cylinder, Two-Cycle Model Engine
Craftsman: Roy E. McAdams
Knapp Collection #: 208
Catalog #: 2008.16.50
Contributor: Paul Knapp
Roy McAdams offered the Springfield A.1 engine (circa 1919) in kit form or completely assembled and ready to run.
Steve Huck V8 Engine
Craftsman: Jeff Lott
Catalog #: 2017.11.1
Contributor: Jeff Lott
This engine was scratch built from billet material taking 2 years to complete. The block and heads are made from 6061T6 aluminum.
Stinger 609 Supercharged V8 Engine
Craftsman: Gary Conley
Knapp Collection #: 290
Catalog #: 2011.32.10
Contributor: Paul Knapp
This “Stinger 609″ supercharged V8 engine is about 10″-tall. The bore is 1.00″ with a .970” stroke. The engine even has a user replaceable oil filter.
Stover Type “K” Stationary Engine
Craftsman: George Luhrs
Knapp Collection #: 109
Catalog #: 2008.10.30
Contributor: Paul Knapp
This miniature Stover was machined from bar stock and utilizes no castings. The engine is 5″-long, 3″-wide, and 4″-high.
Super Cyclone 60
Craftsman: Larry Jenno
Knapp Collection #: 222
Catalog #: 2009.9.32
Contributor: Paul Knapp
This Super Cyclone 60 model airplane engine is in the original box. It was reproduced by Larry Jenno of Nevada.
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