Three Hirtenberger Patronen VT21 Engines
Craftsman: Hirtenberger Patronen
Knapp Collection #: 396, 397, 398
Catalog #: 2016.8.6
Contributor: Paul Knapp
Three VT21 engines developed by Hirtenberger Patronen, Austria, are shown on a wooden display base. The prototype on the left was manually machined from aluminum and steel bar stock.
Three K&B .60 Prototypes
Craftsman: K&B
Catalog #: 2012.19.4
Donor: Joe Bridi
These three engines are prototype variants of the K&B .60 engine that were tested and used by Joe Bridi in Competition Pattern flying.
Three Morton M1 Model Airplane Engines
Craftsman: Dennis Fadden, Bruce Satra
Knapp Collection #: 415, 87, 413
Catalog #: 2016.8.11a ; 2016.8.11b ; 2016.8.11c
Contributor: Paul Knapp
Three Morton M1 engines sit on a wooden display stand. Mr. Fadden designed several model engines that used Bruce Satra’s Morton castings.
Titan .60
Craftsman: Mark Presling
Catalog #: 2022.3.1
Donor: Roger Taylor
This glow-plug Titan .60 model airplane engine was designed by George Genevro and built by Mark Presling of Australia.
TMN 4-Cycle, Sleeve-Valve Cutaway Engine
Craftsman: Petr Chvatal
Knapp Collection #: 251
Catalog #: 2011.27.29
Contributor: Paul Knapp
The TMN 4-cycle, sleeve-valve cutaway airplane engine was built by Petr Chvatal. After completing only 10 engines, Petr produced a couple of the cutaways to demonstrate its operation.
Triscamp 3-Cylinder Miniature Radial Engine
Craftsman: Robert and Frances Washburn
Knapp Collection #: 62
Catalog #: 2008.10.19
Contributor: Paul Knapp
Mr. Washburn designed and fabricated eight of these tiny 3-cylinder, 2-cycle, methanol-burning radial engines by gearing together three individual engines into one housing.
Twin Webra .61 (Gear Driven)
Craftsman: Webra
Catalog #: 2012.19.3
Donor: Joe Bridi
Two counter-rotating Webra .61 engines drive a common propeller shaft through a geartrain. It has glow plug ignition.
U-22 Turbojet Model Aircraft Engine
Craftsman: Dennis Fadden
Knapp Collection #: 58
Catalog #: 2009.9.06
Contributor: Paul Knapp
Dennis Fadden built this model jet engine from plans that were most likely from the 1950s.
Valentine “Blitz” 1-Cylinder Diesel Engine
Craftsman: Ron Valentine
Knapp Collection #: 115
Catalog #: 2008.10.33
Contributor: Paul Knapp
The Valentine “Blitz” Diesel engine was designed and built by Ron Valentine. Mr. Valentine’s engines are among the smallest in the world.
Valentine “Rasant” 1-Cylinder Diesel Engine
Craftsman: Ron Valentine
Knapp Collection #: 116
Catalog #: 2008.10.34
Contributor: Paul Knapp
The Valentine “Rasant” Diesel engine is among the smallest in the world. The 2-cycle engine burns a special Diesel fuel that is less viscous and produces combustion when head and pressure are applied.
Valentine Mini Single Engine
Craftsman: Ronald Valentine
Knapp Collection #: 245
Catalog #: 2011.32.3
Contributor: Paul Knapp
The Valentine mini single-cylinder model airplane engine runs on methanol with glow ignition using custom made glow plugs.
Varo Amp-Champ 12 VDC Field Generator
Craftsman: Varo Inc.
Donor: Joe Martin
The Varo Amp-Champ was powered by an Ohlsson & Rice 2-cycle, single-cylinder model airplane engine (Type 122) that was rated at 3/4 HP at 6,300 RPM.
Vega .61 4-Cycle, Side-Valve Model Airplane Engine
Craftsman: John Harbone
Knapp Collection #: 249
Catalog #: 2011.27.27
Contributor: Paul Knapp
The Vega .61 4-cycle, side-valve model airplane engine was built by John Harbone The engine was machined in small quantities from aluminum and steel bar stock
Vega 50 T 2-Cylinder Opposed Model Airplane Engine
Craftsman: J.C. Harbone
Knapp Collection #: 172
Catalog #: 2008.16.26
Contributor: Paul Knapp
This Vega 50 T is an 8.5 cc four-cycle, side-valve (or flat-head), two-cylinder aircraft engine that burns methanol (methyl alcohol) on glow ignition.
Wall Duplex Mariner
Craftsman: Elmer A. Wall
Knapp Collection #: 79
Catalog #: 2008.16.13
Contributor: Paul Knapp
This Duplex Mariner engine, circa 1940-41, is 9”-long, 6”-wide, and 8”-high.
Warner Large Scale 5-Cylinder Radial Aircraft Engine
Craftsman: Wally Warner
Knapp Collection #: 214
Catalog #: 2011.27.18
Contributor: Paul Knapp
It took Mr. Warner about two years to produce the molds, the aluminum castings, and to machine all the parts to build this 5-cylinder radial aircraft engine.
Wasp Jr. Single-Cylinder Model Airplane Engine
Craftsman: Bruce Satra
Knapp Collection #: 186
Catalog #: 2008.16.34
Contributor: Paul Knapp
Bruce Satra combined a Wasp Jr. cylinder assembly to a crankcase he machined from billet to produce this single-cylinder Wasp Jr. engine.
Whittle Robin Engine
Craftsman: Eric Whittle
Knapp Collection #: 450
Catalog #: 2016.8.1b
Contributor: Paul Knapp
The “Robin” engine is Eric Whittle’s custom-made award presented to Jim Schiller for his extraordinary effort, recovery, and the successful return of Mr. Whittle’s Cirrus engine.
Wright Whirlwind J5 Model Airplane Engine
Craftsman: Charles “Chuck” Harty
Knapp Collection #: 522
Catalog #: 2017.27.13
Contributor: Paul Knapp
This Wright Whirlwind J5 model airplane engine was designed by Carl-Eric Olsryd and built by Charles Harty. Castings, gears, and bearings were provided by Mr. Olsryd of Sweden.
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