The Sea and Sky Cygnet (also known as the Krucker Cygnet) is an American amphibious
ultralight trike
An ultralight trike is a type of powered hang glider where flight control is by weight-shift. These aircraft have a fabric flex-wing from which is suspended a tricycle fuselage pod driven by a pusher propeller. The pod accommodates either a ...
that was designed by J.P. Krucker and initially produced by his company
Krucker Manufacturing in
Sudbury, Ontario
Sudbury, officially the City of Greater Sudbury is the largest city in Northern Ontario by population, with a population of 166,004 at the 2021 Canadian Census. By land area, it is the largest in Ontario and the fifth largest in Canada. It is a ...
,
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 ...
and later by
Sea and Sky of
Fort Walton Beach, Florida, United States. The aircraft is supplied as a kit for
amateur construction or as a complete ready-to-fly-aircraft.
[Bayerl, Robby; Martin Berkemeier; et al: ''World Directory of Leisure Aviation 2011-12'', page 215. WDLA UK, Lancaster UK, 2011. ISSN 1368-485X]
Design and development
The aircraft was designed to comply with the
Fédération Aéronautique Internationale microlight
Ultralight aviation (called microlight aviation in some countries) is the flying of lightweight, 1- or 2-seat fixed-wing aircraft. Some countries differentiate between weight-shift control and conventional three-axis control aircraft with aile ...
category and the US
light-sport aircraft rules.
It features a
strut-braced hang glider
Hang gliding is an air sport or recreational activity in which a pilot flies a light, non-motorised foot-launched heavier-than-air aircraft called a hang glider. Most modern hang gliders are made of an aluminium alloy or composite frame cover ...
-style
high-wing
A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple planes.
A monoplane has inherently the highest efficiency and lowest drag of any wing co ...
, weight-shift controls, a two-seats-in-
tandem
Tandem, or in tandem, is an arrangement in which a team of machines, animals or people are lined up one behind another, all facing in the same direction.
The original use of the term in English was in ''tandem harness'', which is used for two ...
open cockpit, retractable wheeled
tricycle landing gear
Tricycle gear is a type of aircraft undercarriage, or ''landing gear'', arranged in a tricycle fashion. The tricycle arrangement has a single nose wheel in the front, and two or more main wheels slightly aft of the center of gravity. Tricycle g ...
and dual
floats and a single engine in
pusher configuration.
The aircraft is made from bolted-together
aluminum
Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. It ha ...
tubing, with its single surface wing covered in
Dacron
Polyethylene terephthalate (or poly(ethylene terephthalate), PET, PETE, or the obsolete PETP or PET-P), is the most common thermoplastic polymer resin of the polyester family and is used in fibres for clothing, containers for liquids and foo ...
sailcloth. Its span wing is supported by struts and uses an "A" frame weight-shift control bar. The standard powerplants are the twin cylinder, liquid-cooled,
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, ...
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 ...
engine, the four cylinder, air and liquid-cooled,
four-stroke,
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, ...
Rotax 912UL
The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. It features liquid-cooled cylinder heads and air-cooled cylinders. Originally equipped with carburetors, l ...
and the
Rotax 912ULS
The Rotax 912 is a horizontally-opposed four-cylinder, naturally aspirated, four-stroke aircraft engine with a reduction gearbox. It features liquid-cooled cylinder heads and air-cooled cylinders. Originally equipped with carburetors, later ...
engines. The aircraft has an empty weight of and a gross weight of , giving a useful load of . With full fuel of the payload is .
A number of different wings can be fitted to the basic carriage, including the
North Wings Pulse and sizes. The LSA-approved wings are the
North Wing Mustang 3 in , and and the
Keitek Hazard.
Operational history
The Cygnet was awarded ''Best Trike'' at
Sun 'n Fun in 2005.
Variants
;Cygnet
:Initial model
;Cygnet 2
:Improved model
Specifications (Cygnet 2 with North Wings Pulse 17 wing)
References
External links
*{{Official website, http://www.flyamphib.com
Official video
2000s United States sport aircraft
2000s United States ultralight aircraft
Single-engined pusher aircraft
Ultralight trikes
Homebuilt aircraft