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.
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.
Peerless Steam Traction Engine Model
Craftsman: Rudy Kouhoupt
This miniature Peerless traction engine was built by Rudy Kouhoupt at a scale of 1-1/4″:1′.
Pegasus R9-2800 Radial Engine
Craftsman: Authentic Scale
Knapp Collection #: 420
Catalog #: 2016.8.15
Contributor: Paul Knapp
The Pegasus R9-2800 radial aircraft engine was made by Authentic Scale, of the US, in 2014. This 1/5-scale engine measures about 11 inches in diameter and resembles the front half of a Pratt & Whitney R2800 Double Wasp radial engine.
Pioneer Non-Compressive Internal Combustion Engine
Craftsman: Rudy Kouhoupt
This unique project is a Pioneer non-compressive internal combustion engine.
Powerhouse Stationary Engine
Craftsman: Michael Gombert
Knapp Collection #: 530
Catalog #: 2017.27.5
Contributor: Paul Knapp
This Powerhouse stationary engine was designed by Jerry Howell and built by Michael Gombert. Mr. Howell provided the plans and Mike machined it from aluminum and steel bar stock.
Pratt & Whitney 28-Cylinder 4-Row Radial Engine
Craftsman: Dennis Fadden
Knapp Collection #: 344
Catalog #: 2012.33.17
Contributor: Paul Knapp
This Pratt & Whitney 28-cylinder 4-row radial engine is 17”-long, 17”-wide, and 17”-high. It was designed to operate on gasoline and spark ignition, and sports a 12-inch, 3-blade adjustable pitch propeller.
Profi “DOHC 50” 4-Cylinder Inline Racing Engine
Craftsman: Profi M. E.
Knapp Collection #: 237
Catalog #: 2011.27.20
Contributor: Paul Knapp
This 50cc engine burns methanol on glow ignition and sports a pressure lubrication system. It measures 10″-long, 6″-wide, 6″-high, and weighs 2 lbs.
Profi Inline 35 Model Airplane Engine
Craftsman: Profi M. E.
Catalog #: 2013.48.6
Contributor: Daniel "Buzz" Brunkow
Known as a “cam axial” engine, this Profi inline 35 has a very unusual mechanism for the pison to drive the propellor shaft. The piston is inline with the propeller shaft.
Profi Water-Cooled V-Twin Engine Display
Craftsman: Dr. Bob Kradjian; Profi M. E.
Knapp Collection #: 575
Catalog #: 2019.10.3
Contributor: Paul Knapp
This Profi water-cooled V-twin engine display was put together by Dr. Bob Kradjian. It’s an early water-cooled Profi V-twin (circa 2000) that burns methanol on glow ignition.
Prototype Solar Flame Licker Engine
Craftsman: M.G. "Woody" Woods
Catalog #: 2009.11.2
Donor: Les Cade
Twelve of these prototype Solar “flame licker” vacuum engines were built by M.G. “Woody” Woods, circa 1986.
Pulsejet Engine
Craftsman: Robert "Larry" DeCou
Catalog #: 2015.42.1
Donor: Robert "Larry" DeCou
This pulsejet engine was custom-built by Robert “Larry” DeCou in his spare time while working as a machinist in the sheet metal and welding shops at Rohr Aircraft.
Punch Press & Launch Engine
Craftsman: Theodore Carder
Catalog #: 2021.11.3
Donor: Susi Trumbo
This miniature punch press can be driven by the accompanying launch engine.
Quadra .50 Single-Cylinder With 3:1 Belt Drive
Craftsman: Gilardoni
Catalog #: 2012.19.5
Donor: Joe Bridi
This engine built by an Indycar machinist known as “Cally” has a custom made 3:1 belt gearing system. It is marked “Gilardoni” in the cylinder casting. Joe Bridi donated a portion of his engine collection, along with some R/C aircraft, in July 2012. Mr. Bridi is a long-time champion R/C aircraft flyer. At one time […]
QUINCY Hit N’ Miss Engine
Craftsman: Phil Finney
Knapp Collection #: 673
Catalog #: 2021.9.7
Contributor: Paul Knapp
Phil Finney designed, drew, fabricated, and machined this entire hit n’ miss engine from steel bar stock using a 9-inch lathe.
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