Seidel ST 1426 14-Cylinder Radial Model Aircraft Engine
Craftsman: Wolfgang Seidel
Knapp Collection #: 56
Catalog #: 2008.10.16
Contributor: Paul Knapp
The ST 1426 is the largest engine in the series, and perhaps the largest model airplane engine commercially sold.
Seidel ST 525 5-Cylinder Radial Model Airplane Engine
Craftsman: Wolfgang Seidel
Knapp Collection #: 70
Catalog #: 2008.10.22
Contributor: Paul Knapp
The Seidel ST 525 radial airplane engine is among the largest 5-cylinder model airplane engines built to date.
Seidel ST 540 5-Cylinder Radial Model Aircraft Engine
Craftsman: Wolfgang Seidel
Knapp Collection #: 14
Catalog #: 2008.10.5
Contributor: Paul Knapp
The Seidel ST540 has a speed range of 1,100 to 6,800 revolutions per minute, using a 22-6 propeller.
Seidel ST 726 7-Cylinder Radial Model Aircraft Engine
Craftsman: Wolfgang Seidel
Knapp Collection #: 55
Catalog #: 2008.10.15
Contributor: Paul Knapp
The ST 726 weighs approximately 16 pounds. It burns methanol with castor oil mixed in for lubrication, and swings a 32-12 propeller at 4,500 rpm.
Seidel ST 770 7-Cylinder Radial Model Aircraft Engine
Craftsman: Wolfgang Seidel
Knapp Collection #: 15
Catalog #: 2008.10.6
Contributor: Paul Knapp
The Seidel ST 770 has a speed range or 1,000 to 6, 000 revolutions per minute (rpm), using a 26-10 propeller.
Seidel ST 996 9-Cylinder Radial Model Aircraft Engine
Craftsman: Wolfgang Seidel
Knapp Collection #: 16
Catalog #: 2008.10.7
Contributor: Paul Knapp
The ST 996 9-cylinder 96 cc (5.9 cubic inches) is the largest of three in this series of engines.
Shay Locomotive
Craftsman: Theodore Carder
Catalog #: 2021.11.6
Donor: Susi Trumbo
This scale model Shay locomotive has a number of working mechanisms and can run on compressed air.
Shovelnose Hydro Tether Boat With 2-Cylinder Engine
Craftsman: Unknown
Knapp Collection #: 416
Catalog #: 2016.8.12
Contributor: Paul Knapp
This sleek looking hydro measures 11″-wide, 30.5″-long, and sports a custom built two-cylinder, two-cycle, alternate firing twin with a double throw crank.
Side Patio Dollhouse
Craftsman: Peggy Boggeln
Catalog #: 2017.24.18
Contributor: San Diego Miniature Crafters Assn.
Peggy Boggeln built this side patio dollhouse at 1/4”-scale for a class at a NAME convention.
Sidewheel Riverboat Matchstick Model
Craftsman: Ronald Remsberg
Catalog #: 2010.13.5
Donor: Ronald Remsberg
This matchstick model of a sidewheel riverboat is 30″-long, 3-1/4″-wide, and 12-1/2″-tall.
Sikorsky HS-1 Flying Boat
Craftsman: William Tompkins
Catalog #: 2014.6.67
Contributor: William Tompkins
A 1/600 scale model of the Sikorsky HS-1 flying boat.
Sikorsky VS-44A Flying Boat
Craftsman: Ralph Sarosi
Catalog #: 2014.14.1
Donor: Joe Bridi
This model of a Sikorsky VS-44A flying boat is painted with Catalina Airlines colors.
Silver Angel Gas Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.49
Donor: Mark Petersen
Birk’s rendition of the single-cylinder “Silver Angel” gas engine designed by Bob Shores.
Silver Angel Hit-N-Miss Engine
Craftsman: Jack Randall
Catalog #: 2018.18.4
Donor: Katherine Randall
This single-cylinder, 4-cycle, air-cooled hit-n-miss engine was built by Jack Randall and designed by Bob Shores.
Silver Angel Hit-or-Miss Engine
Craftsman: Pamela Weiss
Catalog #: 2018.24.1
Contributor: Pamela Weiss
This Silver Angel hit-or-miss engine was built by Pamela Weiss.
Silver Angel Vertical Stationary Engine
Craftsman: Ramon Hoagland
Knapp Collection #: 613
Catalog #: 2019.33.10
Contributor: Paul Knapp
This Silver Angel vertical stationary engine was built by Ramon Hoagland, of Colorado, in 2017.
Silver Dollar Oscillating Steam Engine
Craftsman: Unknown
Catalog #: 2011.4.14
Donor: Les Cade
This “Silver Dollar” oscillating steam engine is unusual in that the flywheel is made from a bicentennial Eisenhower silver dollar.
Silver Dollar Steam Engine
Craftsman: Les Cade
Catalog #: 2012.31.3
Donor: Owen Cade
This Silver Dollar steam engine was originally made to be handheld over a flame for boiling water.
Silver Teapot House
Craftsman: George & Judy Burke
Catalog #: 2019.22.9
Donor: Anthonly Burke
This one-story dollhouse is called the Silver Teapot House.
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