The Zanzottera MZ 201 and MZ 202 are a family of twin-cylinder, in-line

two-stroke A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being completed in one revolution of ...

dual ignition Dual Ignition is a system for spark-ignition engines, whereby critical ignition components, such as spark plugs and magnetos, are duplicated. Dual ignition is most commonly employed on aero engines,Crane, Dale: ''Dictionary of Aeronautical Terms, ...

aircraft engines designed for ultralight aircraft and

motor glider A motor glider is a fixed-wing aircraft that can be flown with or without engine power. The FAI Gliding Commission Sporting Code definition is: a fixed-wing aerodyne equipped with a means of propulsion (MoP), capable of sustained soaring flight ...

s.Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page G-10 Cybair Limited Publishing, 2001. The engine was originally designed and produced by Zanzottera Technologies of

Italy Italy ( it, Italia ), officially the Italian Republic, ) or the Republic of Italy, is a country in Southern Europe. It is located in the middle of the Mediterranean Sea, and its territory largely coincides with the homonymous geographical ...

, but the design was sold, along with the rest of the company's two-stroke ultralight aircraft engine line, to Compact Radial Engines of Surrey, British Columbia,

Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...

. Compact Radial Engines was then in turn acquired by Fiate Aviation Co., Ltd. of Hefei, Anhui, China in August 2017.

Development

The MZ 202 was developed first as a lightweight competitor to the liquid-cooled

Rotax 582 The Rotax 582 is a two-stroke, two-cylinder, rotary intake valve, oil-in-fuel or oil injection pump, liquid-cooled, gear reduction-drive aircraft engine manufactured by BRP-Rotax GmbH & Co. KG. It is for use in non-certified aircraft operating ...

. Later the MZ 201 was developed from the MZ 202 as a de-rated version intended for motorgliders and single place ultralights that needed more power than the single-cylinder Zanzottera MZ 34. The MZ 201 and 202 both have a cylinder barrels that are

Nikasil Nikasil is a trademarked electrodeposited lipophilic nickel matrix silicon carbide coating for engine components, mainly piston engine cylinder liners. Development Nikasil was introduced by Mahle in 1967, and initially developed to allow Wanke ...

-coated. The bore and stroke are the same as the single-cylinder MZ 34 engine. The MZ 201 features an optional

recoil starter Rope start (also called pull start or ''rewind start'') is a method of starting an internal combustion engine, usually on small machines, such as lawn mowers, chainsaws, ultralight aircraft, small outboard motors and portable engine-generators. ...

or electric starting, while the MZ 202 has electric starting only. The MZ 201 has a choice of a reduction drive belt or gearbox, while the MZ 202 offers just the gearbox with reduction ratios of 2.18, 2.55, 2.88, 3.11 or 3.66 to 1. The owners manual acknowledges the limitations inherent in the design of the engine, stating:

Variants

;MZ 201 :Twin-cylinder, air-cooled, two-stroke dual ignition aircraft engine optimized for motorgliders and single place ultralights. Equipped with a single Tillotson carburetor. ;MZ 202 :Twin-cylinder, air-cooled, two-stroke dual ignition aircraft engine. Equipped with dual Bing carburetors. ;MZ 202i :Twin-cylinder, air-cooled, two-stroke dual ignition aircraft engine. Equipped with

electronic fuel injection Manifold injection is a mixture formation system for internal combustion engines with external mixture formation. It is commonly used in engines with spark ignition that use petrol as fuel, such as the Otto engine, and the Wankel engine. In a mani ...

, controlled by a computerized engine management system. No longer in production

Applications

;MZ 201 * Belite Aircraft Superlite *

SlipStream Scepter The SlipStream Genesis is a family of American, strut-braced, high wing, pusher configuration, tricycle gear aircraft, produced in kit form, for amateur construction. Designed by Chuck Hamilton, the series were originally produced by Innovatio ...

SNAS Stryke-Air Bi The SNAS Stryke-Air Bi ( en, two-place) is a French powered parachute that was designed and produced by Société Nouvelle d'Aviation Sportive (SNAS) of Noillac. Now out of production, when it was available the aircraft was supplied complete ...

Spacek SD-1 Minisport The Spacek SD-1 Minisport is a Czech amateur-built aircraft, designed by Igor Špaček and produced by Spacek sro of Hodonin. The aircraft was also produced for a short time in the United States by SkyCraft Airplanes of Orem, Utah as a li ...

Star Bee Light The Taggart GyroBee is an American autogyro that was designed by Ralph E. Taggart of Michigan State University and made available as free documentation. The aircraft is also produced in kit form by Star Bee Gyros of Worcester, Massachusetts fo ...

* Taggart GyroBee * Wings of Freedom Flitplane ;MZ 202 * ASAP Beaver Plus 2 *

Apex Cross 5 The Apex Eco 6 is the first of a family of Czech single and two seat flying wing ultralight trikes that were designed and produced by To-Mi Aviation and later by Apex Aviation. The aircraft were supplied as kits for amateur construction.Cliche, ...

Innovator Mosquito Air The Innovator Mosquito Air is a Canadian helicopter produced by Innovator Technologies of Rockyview, Alberta. The aircraft is supplied as a kit for amateur construction.Tacke, Willi; Marino Boric; et al: ''World Directory of Light Aviation 20 ...

* Mosquito Aviation XE * Sabre Wildcat * Star Bee Total Bee

Specifications (MZ 202)

References

External links