Oscillating Steam Engine
Craftsman: Rudy Kouhoupt
Donor: Susan Alvaro
This small oscillating steam engine is another illustration of the variety of different configurations built by Rudy Kouhoupt.
Oscillating Steam Engine
Craftsman: Rudy Kouhoupt
Donor: Susan Alvaro
This tiny oscillating steam engine isn’t much larger than a US quarter.
Oscillating Steam Engine
Craftsman: Rudy Kouhoupt
Donor: Susan Alvaro
This small oscillating steam engine is yet another simple and functional design by Rudy Kouhoupt.
Oseberg Viking Burial Ship
Craftsman: Michael Titone
Catalog #: 2011.34.4
Contributor: Michael Titone
This 1/25 scale plank-on-frame model of an Oseberg Viking burial ship was built by Michael Titone starting from a Billings Boats kit.
Ostrich Egg Dollhouse Scene
Craftsman: Sheila McKisic
Catalog #: 2017.24.11
Contributor: San Diego Miniature Crafters Assn.
This clever dollhouse scene was crafted inside of an ostrich egg by Sheila McKisic.
Otter 30 Inline 4-Cylinder Boat Engine
Craftsman: Dr. Haydock
Knapp Collection #: 42
Catalog #: 2009.9.04
Contributor: Paul Knapp
Dr. Haydock designed single-cylinder, 2-cylinder and 4-cylinder engines for model boats. He built a handful of these Otter 30 cc engines from his own patterns and castings.
Otto-Langen Atmospheric Engine
Craftsman: Ramon Hoagland
Knapp Collection #: 547
Catalog #: 2017.27.1
Contributor: Paul Knapp
This Otto-Langen atmospheric engine was built at 1/7 scale and measures about 11” in diameter by 24”-high. It is a model of the world’s first production combustion engine.
Overcrank Vertical Steam Engine
Craftsman: Rudy Kouhoupt
Donor: Susan Alvaro
This Overcrank vertical steam engine features a unique system of links and levers to guide the piston rod.
P-51 Mustang Paper Airplane
Craftsman: Huntly Briggs
Catalog #: 2015.21.1
Donor: Huntly Briggs
This unique paper airplane is modeled after a P-51 Mustang.
Pacifier V4 Water-Cooled Engine
Craftsman: Bob Shores
Knapp Collection #: 438
Catalog #: 2016.8.22
Contributor: Paul Knapp
This “Pacifier” V4 water-cooled model engine is a mere 5.5″-wide, 6.5″-long, 6″-high, and weighs about 3 pounds. It has a bore and stroke of .625″ and burns gasoline on spark ignition.
Pacinotti Machine
Craftsman: Birk Petersen
Catalog #: 2016.15.72
Donor: Mark Petersen
This small Pacinotti machine can be run with an electric motor.
Paddle Wheel Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.5
Donor: Mark Petersen
This riverboat paddle wheel is driven by a dual horizontal steam engine—all built by Birk.
Pancake Stirling Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.111
Donor: Mark Petersen
A miniature pancake Stirling engine made by Birk Petersen.
Panther Pup 4-Cylinder Engine
Craftsman: Steve Myers
Knapp Collection #: 351
Catalog #: 2012.33.18
Contributor: Paul Knapp
The Panther Pup engine is an air-cooled, four-cylinder, four-cycle designed to burn gasoline on spark ignition.
Panther Pup Gas Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.13
Donor: Mark Petersen
This brass Panther Pup 4-cylinder internal combustion engine runs on gas with spark ignition.
Paper Models
Craftsman: David Kemp
Catalog #: 2019.16.1 ; 2019.16.2 ; 2019.16.3 ; 2019.16.4
Donor: David Kemp
David Kemp built and donated four paper models including a model tank, an SE5 airplane, a Sopwith Dolphin airplane, and a German airplane.
Parohl 3-Cylinder Radial Aircraft Engine
Craftsman: Henry Parohl
Knapp Collection #: 80
Catalog #: 2009.9.10
Contributor: Paul Knapp
This 3-cylinder radial is a one-of-a-kind custom design that runs on regular gasoline and has a spark ignition. The engine is 9”-long, 12”-wide, and 9”-high.
Parohl Single-Cylinder OHV Model Boat Engine
Craftsman: Henry Parohl
Knapp Collection #: 125
Catalog #: 2008.16.20
Contributor: Paul Knapp
To gain efficiency and performance Henry Parohl installed 4 valves in the head of this model boat engine. The engine is 9”-long, 9”-wide, and 10”-high.
Parsell & Weed Hit N’ Miss Engine
Craftsman: Ron Schindele
Knapp Collection #: 599
Catalog #: 2019.33.3
Contributor: Paul Knapp
This 1/3 scale model Parsell & Weed hit n’ miss engine measures 13.5-inches long, 5.5-inches wide, and 8-inches tall on the skid.
Showing 20 of 1294 exhibits.