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.
Slipper Cox .049 Tether Car
Craftsman: Doug Parker
Knapp Collection #: 404
Catalog #: 2016.8.7
Contributor: Paul Knapp
The “Slipper” Cox .049 tether car measures about 7-inches long with a wheelbase of 4-inches. It was hand crafted from billet 6061 aluminum and steel.
Smokehaus Stirling Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.94
Donor: Mark Petersen
Birk built this small “Smokehaus” Stirling engine.
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.
Solar Engines Stirling Cycle Engine
Craftsman: Solar Engines
Catalog #: 2013.38.1
Donor: John Murphy
This Stirling cycle engine, produced by Solar Engines, was likely sold by PM Research, Wellsville, NY.
Solar Flame Licker Engine
Craftsman: M.G. "Woody" Woods
Catalog #: 2012.31.2
Donor: Owen Cade
The Solar flame licker engine built by M.G. “Woody” Woods.
Solar No. 4 “Sun Runner” Stirling Cycle Engine
Craftsman: PM Research
Catalog #: 2009.16.1
Donor: Les Cade
The Solar No. 4 “Sun Runner” is a commercially built Stirling cycle engine that runs on solar energy.
Solar Turbines Gemini APU Turbine Rotor
Craftsman: Solar Turbines
Catalog #: 2017.1.1
Donor: 2017.1.1
This original 1981 Gemini turbine rotor is the heart of a turbine auxiliary power unit. The blades are very thin and made from Titanium.
Solar-Powered Victorian Steam Engine
Craftsman: Szymon Klimek
Catalog #: 2009.15.1
Donor: Szymon Klimek
This miniature brass solar-powered Victorian steam engine is called “Susi.” It was built by Szymon Klimek, of Poland, and is enclosed in a wine goblet like many of his other pieces.
Solenoid Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.114
Donor: Mark Petersen
Birk Petersen built this miniature solenoid engine with brass flywheel.
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.
South-Pointing Chariot Model
Craftsman: Birk Petersen
Catalog #: 2016.15.7
Donor: Mark Petersen
This geared two-wheel south-pointing chariot was originally designed in ancient China to assist with land navigation.
Sovereign of the Seas
Craftsman: Robert Wood
Catalog #: 2018.23.1
Donor: Robert Wood
A scale model of the sailing ship, Sovereign of the Seas, built and donated by Robert Wood. Completed in 1965, the Sovereign is a solid hull, scratch-built ship.
Space Shuttle
Craftsman: William Tompkins
Catalog #: 2014.6.71
Contributor: William Tompkins
A 1/600 scale model Space Shuttle built by William Tompkins.
Spook 48 Free Flight Model Aircraft
Craftsman: Joe Bridi
Catalog #: 2014.19.7
Donor: Joe Bridi
This free flight model aircraft was built by Joe Bridi and given the name, “Spook 48.”
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