Bosh Water-Cooled Inline 4-Cylinder Engine
Craftsman: Bob Shores
Knapp Collection #: 440
Catalog #: 2016.8.23
Contributor: Paul Knapp
The Bosh is water-cooled 4-cylinder 40cc inline auto engine designed to burn gasoline on spark ignition.
Bottle Washing Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.32
Donor: Mark Petersen
In this clever invention, a steam engine drives a bottle brush in and out of a bottle neck for cleaning.
Bourbouze Beam Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.71
Donor: Mark Petersen
Birk Petersen built this miniature Bourbouze beam engine (magnetic coil engine)
Boxer 2-Cylinder Opposed Aircraft Engine
Craftsman: Unknown
Knapp Collection #: 154
Catalog #: 2008.16.23
Contributor: Paul Knapp
The maker of this Boxer 2-cylinder opposed aircraft engine is unknown, but it came from Germany. The engine is 9”-long, 9”-wide, and 7”-high.
Brass Horizontal Steam Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.117
Donor: Mark Petersen
Birk Petersen built this small brass single-cylinder horizontal steam engine, including all the castings. Mr. Petersen created a vast array of projects over his lifetime, ranging from miniature engines to hand-cranked animations and more. He built functional miniatures like a 1/3 scale Gatling gun or a 1/4 scale Case steam tractor, but he also built […]
Brass Single-Cylinder Horizontal Steam Engine
Craftsman: Unknown; Restored by Tom Boyer
Catalog #: 2011.11.2
Donor: Joe Kunkler
The engine is a horizontal steam engine with an overdriven geared flywheel. We decided to expose the flywheel so observers could see how it works.
Brass Vase Vertical Steam Engine
Craftsman: Rudy Kouhoupt
Donor: Susan Alvaro
Rudy Kouhoupt used a brass vase from an antique store as the frame for this coke bottle style steam engine.
Bremen Pumping Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.88
Donor: Mark Petersen
Birk’s model of a Bremen Stirling hot air pumping engine.
Britnell Original Design Radial Engine
Craftsman: George Britnell
Catalog #: 2019.23.1
Donor: George Britnell
George’s radial has a bore and stroke of .625 x .600. Designed and built in 2012, it took about 600 hours to complete.
Brodbeck Side Port .60 Tether Car Engines
Craftsman: John Brodbeck
Knapp Collection #: 638, 639, 640
Catalog #: 2021.9.1
Contributor: Paul Knapp
These Brodbeck side port .60 tether car engines are presumed to have been built by John Brodbeck in the mid-1940s.
Brown Jr. Campus 140 Twin CO2 Motor
Craftsman: William "Bill" Likens Brown IV
Catalog #: 2014.7.3
Contributor: Edward Swenton Jr.
This Brown Jr. Campus 140 twin CO2 motor includes a wooden propeller and CO2 tank.
Brown Jr. Campus A-23 CO2 Motor
Craftsman: William "Bill" Likens Brown IV
Catalog #: 2014.7.2
Contributor: Edward Swenton Jr.
CO2 was popular before ignition engines were developed. This Brown Jr. Campus A-23 engine came in the original packaging.
Bruce Macbeth Inline Four Engine
Craftsman: Ramon Hoagland
Knapp Collection #: 740
Catalog #: 2023.2.6
Contributor: Paul Knapp
This Bruce Macbeth inline four engine is 13.5″-long, 12″-wide, 11″-high, and weighs about 20 lbs.
BUSTER K&B Powered Model Airplane
Craftsman: K&B Manufacturing; Premium Manufacturing
Knapp Collection #: 616-2
Catalog #: 2019.33.14
Contributor: Paul Knapp
A special version of the Torpedo Jr. was created for a promotional model airplane produced for the LA Times Newspaper, circa 1951.
Callahan Horizontal Gas Engine
Craftsman: Russell Anderson
Catalog #: 2019.21.3
Contributor: Steve Anderson
This Callahan horizontal gas engine included a wooden case of drawings and photos from the builder, Russell Anderson.
Caloric Hot Air Engine
Craftsman: Roger Butzen
Knapp Collection #: 755
Catalog #: 2024.5.2
Contributor: Paul Knapp
This Caloric hot air engine was built by Roger Butzen of Texas.
Challenger Flathead V8
Craftsman: Ron Bement
Knapp Collection #: 496
Catalog #: 2016.44.7
Contributor: Paul Knapp
This Challenger flathead V8 was custom built by Ron Bement. Ron’s version includes several innovations and modifications not found in conventional Challenger engines.
Challenger Flathead V8
Craftsman: Dick Pretel
Knapp Collection #: 589
Catalog #: 2019.11.2
Contributor: Paul Knapp
The only part of this engine typical of the Challenger V8 is the crankcase; everything else was machined from 7075 aluminum, steel, and stainless steel bar stock.
Challenger Flathead V8
Craftsman: Ed Miller, Mike Gombert
Knapp Collection #: 593
Catalog #: 2019.11.6
Contributor: Paul Knapp
This Challenger flathead V8 engine was built by Ed Miller (WY) and Mike Gombert (CO). Typical of Ed’s engines, this Challenger is designed to burn methanol on spark ignition.
Showing 20 of 679 exhibits.