Miller 2-Cylinder, 2-Cycle Race Engine
Craftsman: Ed Miller
Knapp Collection #: 480
Catalog #: 2016.8.32
Contributor: Paul Knapp
Made from a pair of modified “weed-eater” engines, this 2-cylinder racing engine was slated to power a model speed boat.
Miller DOHC Water-Cooled 2-Cylinder Race Engine
Craftsman: Ed Miller
Knapp Collection #: 478
Catalog #: 2016.8.30
Contributor: Paul Knapp
Suitable for a radio-controlled car or boat, Ed Miller’s first engine is this dual-overhead-cam (DOHC) single with a bore of 1″ and a stroke of 1.25″.
Mini Racer CO2 Tether Car
Craftsman: William "Scotty" Hewitt
Knapp Collection #: 297
Catalog #: 2011.27.45
Contributor: Paul Knapp
This mini racer CO2 tether car is custom fitted with a Gasparin G-10 (CO2) motor inside a Matchbox No. 52 race car.
Miniature 3-Cylinder Radial Engine
Craftsman: Cliff Bumpus
Knapp Collection #: 78
Catalog #: 2009.9.09
Contributor: Paul Knapp
Cliff Bumpus designed and machined this miniature engine from bar stock (aluminum ingots). The cylinders are spaced 120° apart in a circular pattern.
Miniature 7-Cylinder Radial Engine
Craftsman: Pius Job
Knapp Collection #: 86
Catalog #: 2008.16.14
Contributor: Paul Knapp
This engine burns methanol (with oil mixed in for lubrication) on glow ignition and turns a 24-10 propeller at 6,000 rpm. The engine is 10”-long, 9”-wide, and 15”-high (on stand).
Miniature 7-Cylinder Radial Engine
Craftsman: Pierre Blais
Knapp Collection #: 83
Catalog #: 2009.9.11
Contributor: Paul Knapp
This 7-cylinder radial engine burns a methanol/castor oil mixture on glow ignition. The engine is 10”-long, 11”-wide, and 12”-high.
Miniature 7-Cylinder Radial Engine
Craftsman: Lee Root
Knapp Collection #: 101
Catalog #: 2009.9.14
Contributor: Paul Knapp
This miniature 7-cylinder radial engine was machined entirely from bar stock. Mr. Root’s 7-cylinder was ahead of its time and more advanced than most miniature engines made today.
Miniature Cam Grinder
Craftsman: Ron Schindele
Knapp Collection #: 448
Catalog #: 2016.8.26
Contributor: Paul Knapp
The unique feature of Ron’s cam grinder is an indexing cog gear that automatically controls the down-feed of the grinding wheel at about .001 per revolution of the cam.
Miniature Flash Steam Engine
Craftsman: Unknown
Knapp Collection #: 371
Catalog #: 2016.8.5
Contributor: Paul Knapp
The builder and date for this miniature flash steam engine are unknown. All of the castings are iron and have numbers on them indicating it might have been built from a kit.
Miniature SJ7 Pulsejet Engine
Craftsman: Mike Early
Knapp Collection #: 40
Catalog #: 2008.10.10
Contributor: Paul Knapp
This miniature pulsejet engine operates exactly like the V1. It burns regular gasoline and has a variable thrust range from 1/2 to 6 1/2 pounds.
Miniature Spark Plugs
Craftsman: Dale Detrich
Knapp Collection #: 295
Catalog #: 2011.27.43
Contributor: Paul Knapp
Dale Detrich uses Corian for the insulators in his miniature spark plugs. Due to popularity, Dale made several styles available to model engine builders.
Miniature Turbocharger
Craftsman: Frank Kurz
Knapp Collection #: 261
Catalog #: 2011.27.33
Contributor: Paul Knapp
Frank Kurz machined this small turbocharger from aluminum and steel bar stock, and he tested the turbo on a small engine, but the test results are unknown.
Mock-Up Revell Model Kit for Ron Bement’s ’32 Ford Hot Rod
Craftsman: Craig Augustin
Knapp Collection #: 449
Catalog #: 2016.8.27
Contributor: Paul Knapp
This mock-up Revell model kit (box art only) for Ron Bement’s ’32 Ford hot rod was designed and fabricated by Craig Augustin, of Colorado, in 2007.
Model Craftsman 4-Cycle Airplane Engine
Craftsman: Unknown
Knapp Collection #: 320
Catalog #: 2012.33.5
Contributor: Paul Knapp
This engine has a cast aluminum crankcase and cam box with a machined cast iron cylinder and head.
Model Pratt & Whitney Engine Casting
Craftsman: Paul Knapp
Knapp Collection #: 161
Contributor: Paul Knapp
Paul Knapp assembled castings for his model Pratt & Whitney R-985 Wasp Jr. engine (also on display), and then cut them in half as a visual aid.
Morton M-42 4-Cylinder Flathead Model Car Engine
Craftsman: Jim Hawk
Knapp Collection #: 158
Catalog #: 2008.10.47
Contributor: Paul Knapp
This Morton M-42 burns gasoline on spark ignition and will turn a 14-6 propeller in excess of 6,500 RPM. The engine is 9″-long, 5″-wide, and 5″-high.
Morton M5 5-Cylinder Radial Engine
Craftsman: Morton Aviation
Knapp Collection #: 18
Catalog #: 2009.9.01
Contributor: Paul Knapp
The Morton M5 5-cylinder radial engine was designed and built by Morton Aviation. The M5 was the first miniature radial engine made for model airplanes.
Morton M5 Radial Model Aircraft Engine (cutaway)
Craftsman: Dennis Fadden
Knapp Collection #: 20
Catalog #: 2008.10.8
Contributor: Paul Knapp
A Morton M5 radial model aircraft engine (cutaway). The engine is 7″-long, 6″-wide, and 7″-high.
Motorcycle Made From Watch Parts
Craftsman: Dmitriy Khristenko
Knapp Collection #: 331
Catalog #: 2012.33.6
Contributor: Paul Knapp
Dmitriy Khristenko recycles parts from old wrist watches, pocket watches and eyeglasses to produce miniature motorcycles, quads, bicycles and tricycles.
Showing 20 of 391 exhibits.