Bentley BR2 Rotary Aero Engine
Craftsman: Paul Knapp
Knapp Collection #: 03
Catalog #: 2008.10.2
Contributor: Paul Knapp
A 1/4 Scale Bentley 9-cylinder rotary engine built by Paul Knapp.
Comber Rotary Engine
Craftsman: Birk Petersen
Catalog #: 2016.15.52
Donor: Mark Petersen
Birk Petersen built this miniature Comber rotary engine.
Cylindrical Rotary Engine
Craftsman: Alphonse C. Vassallo
Knapp Collection #: 234
Catalog #: 2009.9.39
Contributor: Paul Knapp
This cylindrical rotary engine is 7″-long, 5″-wide, 3.5″-high, and weighs 5 lbs. Internally, the engine resembles a positive-flow (vane type) rotary pump.
Gasparin 9-Cylinder Rotary CO2 Engine
Craftsman: Stefan Gasparin
Knapp Collection #: 287
Catalog #: 2011.32.7
Contributor: Paul Knapp
Stefan Gasparin designed and built over 60 variations of CO2 engines from 1 through 18-cylinders—including single-cylinder, inline, opposed flat, “V,” rotary, and radial configurations.
Gnome 160 Rotary Airplane Engine
Craftsman: Ray Williams
Knapp Collection #: 114
Catalog #: 2008.10.32
Contributor: Paul Knapp
The Gnome 160 operates on gasoline with spark ignition and a pressurized oil system. It has a displacement of 27 cubic inches and the engine itself weighs 11 pounds.
Le Rhone Rotary Aero Engine
Craftsman: Ray Williams
Knapp Collection #: 576
Catalog #: 2019.10.4
Contributor: Paul Knapp
Ray WIllliams built his Le Rhone 80 HP rotary aero engine to exact scale by using original factory drawings and parts from the full-size engine.
O.S. Wankel Model Airplane Engine
Craftsman: O.S.
Catalog #: 2013.49.14
Contributor: Daniel "Buzz" Brunkow
Mr. Brunkow’s collection also includes this OS .3 cubic inch (4.9cc) Wankel rotary model aircraft engine.
Wankel (Mazda Type) Rotary Engine
Craftsman: Henry Parohl
Knapp Collection #: 123
Catalog #: 2008.16.19
Contributor: Paul Knapp
This Wankel (Mazda type) rotary engine is a two-cycle that burns gasoline with oil mixed in for lubrication. The engine is 6”-long, 7”-wide, and 6”-high.
Showing 9 of 9 exhibits.