Question: In what city and state was the American aircraft manufacturer, that specializes in the design and manufacture of ultralight aircraft in the form of plans and kits for amateur construction and ready-to-fly aircraft, based in?

Context paragraphs:
Free Bird Innovations: Free Bird Innovations, Inc. is an American aircraft manufacturer based in Detroit Lakes, Minnesota and formed in about 2003.  The company specializes in the design and manufacture of ultralight aircraft in the form of plans and kits for amateur construction and ready-to-fly aircraft in the US FAR 103 Ultralight Vehicles category.

Worldwide Ultralite: Worldwide Ultralite Industries was an American aircraft manufacturer.  The company specialized in the design and manufacture of ultralight aircraft in the form of kits for amateur construction and ready-to-fly aircraft in the US FAR 103 Ultralight Vehicles rules.  Formed in the early 1980s, the company was out of business by the 1990s.

Raceair Designs: Raceair Designs LLC is an American aircraft manufacturer based in Gilbert, South Carolina, founded by designer Ed Fisher.  The company was formerly located in Mayville, New York and Warren, Ohio.  The company specializes in the design and manufacture of ultralight aircraft in the form of plans and kits for amateur construction and complete ready-to-fly aircraft under the US FAR 103 Ultralight Vehicles rules.

Detroit Lakes, Minnesota: Detroit Lakes is a city in the State of Minnesota and the county seat of Becker County.  The population was 8,569 at the 2010 census.  Its unofficial population during summer months is much higher, estimated by citizens to peak at 13,000 midsummer, due to seasonal residents and tourists.

CGS Aviation: CGS Aviation, Inc. is an American aircraft manufacturer based in Grand Bay, Alabama.  The company was founded by Chuck Slusarczyk in the early 1970s in Broadview Heights, Ohio as "Chuck's Glider Supplies".  Today it run by Danny Dezauche and specializes in the design and manufacture of ultralight aircraft in the form of kits for amateur construction and ready-to-fly aircraft in the US FAR 103 Ultralight Vehicles rules category.

Apollo Ultralight Aircraft: Apollo Ultralight Aircraft is a Hungarian aircraft manufacturer based in Eger.  The company specializes in the design and manufacture of ultralight aircraft, gyroplanes and ultralight trikes, in the form of kits for amateur construction and ready-to-fly aircraft for the European Fédération Aéronautique Internationale microlight and the American light-sport aircraft categories.

Bilsam Aviation: Bilsam Aviation Industries Sp.Z00 is a Polish aircraft manufacturer based in Poznań.  The company specializes in the design and manufacture of ultralight aircraft in the form of plans and kits for amateur construction and ready-to-fly aircraft for the US FAR 103 Ultralight Vehicles rules, the European Fédération Aéronautique Internationale microlight and US light sport aircraft categories.  The company also designs and builds its own aircraft engines.

Golden Circle Air: Golden Circle Air, Inc. was an American aircraft manufacturer based in De Soto, Iowa.  The company specialized in the manufacture of ultralight aircraft in the form of kits for amateur construction and ready-to-fly aircraft under the US FAR 103 Ultralight Vehicles rules.

Teratorn Aircraft: Teratorn Aircraft, Inc. (named for the extinct ice age soaring bird) was an American aircraft manufacturer based in Clear Lake, Iowa.  The company specialized in the design and manufacture of ultralight aircraft in the form of kits for amateur construction and ready-to-fly aircraft under the US FAR 103 Ultralight Vehicles rules.

American Aerolights: American Aerolights Inc. was an American aircraft manufacturer founded by Larry Newman.  The company specialized in the design and manufacture of ultralight aircraft in the form of kits for amateur construction and ready-to-fly aircraft under the US FAR 103 Ultralight Vehicles rules.

Supporting paragraphs: Free Bird Innovations Detroit Lakes, Minnesota
Answer: Detroit Lakes, Minnesota