5-Cylinder Radial Model Airplane Engine
Craftsman: Alphonse C. Vassallo
Knapp Collection #: 235
Catalog #: 2009.9.40
Contributor: Paul Knapp
It took about a year to design and build this 5-cylinder radial engine, including the carburetor, which incorporates a built-in choke mechanism. It is completely machined from aluminum and steel bar stock.
5-Cylinder Radial Steam Engine
Craftsman: Rudy Kouhoupt
This 5-cylinder radial airplane engine runs on steam, but can also be hooked up to run on compressed air.
5-Cylinder, 4-Cycle Radial Engine
Craftsman: Ronald Valentine
Knapp Collection #: 246
Catalog #: 2011.32.4
Contributor: Paul Knapp
This 5-cylinder, 4-cycle radial engine runs on methanol with glow ignition using custom made glow plugs. It measures 3.25-inches in diameter.
6-Cylinder Experimental Rotary Engine
Craftsman: Bell Lab Engineers and J.W. Kijowski
Knapp Collection #: 265
Catalog #: 2011.27.36
Contributor: Paul Knapp
Little is known about this “proof of concept” 6-cylinder experimental rotary engine. The cylinders are arranged in two rows of three, and the rows are staggered.
77 Products/Merco .61 Engine
Craftsman: 77 Products
Catalog #: 2012.19.12
Donor: Joe Bridi
This engine was made in the U.S. by 77 Products using a British Merco 61 crankcase and innards. The polished head is the main difference from the standard engine.
9-Cylinder Radial Engine (Incomplete)
Craftsman: Jack Randall
Catalog #: 2018.17.1
Donor: Katherine Randall
Jack Randall’s unfinished scale model 9-cylinder radial engine.
ADC Cirrus Engine
Craftsman: Eric Whittle
Knapp Collection #: 304
Catalog #: 2016.8.1a
Contributor: Paul Knapp
This 1/9 scale model ADC (or ACE) Cirrus airplane engine won first place at the North American Model Engineering Show (NAMES) in Wyandotte, MI.
Aero 35 Inline Model Airplane Engine
Craftsman: Aero
Catalog #: 2013.48.4
Contributor: Daniel "Buzz" Brunkow
With no speed control, this engine would have been used before the advent of radio control on U-control or free flight aircraft.
Air-Cooled Single-Cylinder Horizontal Gas Engine
Craftsman: Mr. Hallock
Catalog #: 2011.4.22
Donor: Les Cade
This single-cylinder, air-cooled horizontal engine has a 6″ brass sleeved cast iron 6-spoke flywheel, and a brass exhaust stack.
Allyn “Sea Fury” 2-Cylinder Model Inboard/Outboard Motor
Craftsman: Allyn
Catalog #: 2013.48.7
Contributor: Daniel "Buzz" Brunkow
Probably the most interesting of the Sea Fury motors is this inboard/outboard design. They came two ways, single and twin-cylinder.
Allyn “Sea Fury” 2-Cylinder Model Outboard Boat Engine
Craftsman: Allyn
Catalog #: 2013.48.2
Contributor: Daniel "Buzz" Brunkow
This “Sea Fury” 2-cylinder model outboard boat engine was made by Allyn. It is probably the most popular engine used on model boats over the years.
Allyn “Sea Fury” Model Outboard Motor
Craftsman: Allyn
Catalog #: 2012.29.1
Contributor: Andy Moore
This tiny outboard motor has a cylinder size of about .049. Like the real engines of this vintage, it was pull-started with a cord around the exposed flywheel.
Alterscale Model Outboard Mercury 2.5 liter EFI
Craftsman: Alterscale
Catalog #: 2013.49.4
Contributor: Daniel "Buzz" Brunkow
Alterscale makes detailed diecast models of selected outboard motors. This pair includes a 1/9 scale black 1997 Mercury 2.5 liter electronic fuel injected model (left).
Alterscale Model Outboard Mercury 4
Craftsman: Alterscale
Catalog #: 2013.49.5
Contributor: Daniel "Buzz" Brunkow
Alterscale makes detailed diecast models of selected outboard motors. This pair includes a 1/8 scale 1957 Mercury Mark 4 in light blue (right).
AMPS Custom Twin-Prop Outdrive
Craftsman: AMPS and Daniel "Buzz" Brunkow
Catalog #: 2013.49.12
Contributor: Daniel "Buzz" Brunkow
A unique AMPS outdrive with twin propellers. Powered by a motor mounted inside the boat, this geared outdrive has an R/C controlled tilt mechanism to trim the prop angle.
Anderson Baby Spitfire .045 Model Airplane Engine
Craftsman: Mel Anderson
Catalog #: 2014.24.1
Donor: Thomas Whittaker
This Baby Spitfire .045 model airplane engine was produced by the Mel Anderson Manufacturing Company.
Anderson Spitfire .65 Model Airplane Engine
Craftsman: Marvin Miller
Knapp Collection #: 221
Catalog #: 2009.9.31
Contributor: Paul Knapp
This Anderson Spitfire .65 model airplane engine was built by Marvin Miller. The small engine weighs 2 lbs.
Anzani 3-Cylinder Fan Engine
Craftsman: Alfred Eichinger
Knapp Collection #: 100
Catalog #: 2008.16.16
Contributor: Paul Knapp
This 1/4 scale Anzani fan engine is 8”-long, 12”-wide, 9”-high, and weighs 3 lbs. 13 oz. The automatic inlet valves are situated inside the head where the intake pipe connects.
ARDUN V8 Flathead Ford Engine
Craftsman: Ron Bement
Knapp Collection #: 499
Catalog #: 2016.44.10
Contributor: Paul Knapp
This ARDUN V8 flathead Ford engine OHV conversion supports two water pumps, has a high efficiency aluminum radiator, and features a custom designed fuel injection system.
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