Question: In what county is the city that the Synergy Aircraft Synergy designer was from?

Context paragraphs:
Synergy Aircraft Synergy: The Synergy Aircraft Synergy is a proposed five-seat, single-engine, kit aircraft, designed by John McGinnis of Kalispell, Montana and intended for production by his company, Synergy Aircraft.

Panama City–Bay County International Airport: Panama City–Bay County International Airport (IATA: ECP, ICAO: KPFN, FAA LID: PFN) was a public airport three miles northwest of Panama City, in Bay County, Florida.  It was owned and operated by the Panama City–Bay County Airport and Industrial District.  All airline services moved to the Northwest Florida Beaches International Airport on May 22, 2010, but the airfield was open to general aviation aircraft until October 1, 2010.  The grounds will eventually be turned over to LUK-MB1 LLC, which plans to remove the runways and build homes, shops, walking trails and a marina.

Albany Municipal Airport (Oregon): Albany Municipal Airport (FAA LID: S12) is a general aviation airport located 3 NM east of the city of Albany in Linn County, Oregon, United States.  It is publicly owned and operated by the City of Albany.  It is the oldest known operating airfield in Oregon, opening in 1920.  There are 58 aircraft based at the municipal airport; 49 Single engine airplanes, 7 multi engine, and 2 jet airplanes.  On average there are 62 aircraft operations per day.

Newport News Shipbuilding: Newport News Shipbuilding (NNS), a division of Huntington Ingalls Industries, is the largest industrial employer in Virginia, and sole designer, builder and refueler of U.S. Navy aircraft carriers and one of two providers of U.S. Navy submarines. Founded as the Chesapeake Dry Dock and Construction Co. in 1886, Newport News Shipbuilding has built more than 800 ships, including both naval and commercial ships.  Located in the city of Newport News, their facilities span more than 550 acre , strategically positioned in one of the great harbors of the East Coast.

Alexander Pfitzner: Alexander (Sandor) L. Pfitzner (August 5, 1880 – July 7, 1910) was a Hungarian engineer, inventor and aviation pioneer.  After studying at the Hungarian University of Technology and serving in the Hungarian Army as an artillery officer, he emigrated to the United States, where he pursued a career as a designer of automobile and aircraft engines.  He designed and flew the first American monoplane, the Pfitzner Flyer.  Apparently depressed by its lack of success, he is reported to have committed suicide in July, 1910, although his body was never found.  Following his death, reports spread that some of his friends had sighted him in New York City.

Planning of the September 11 attacks: On September 11, 2001, 19 Arab-Muslim hijackers took control of four commercial aircraft and used them as suicide weapons in a series of four coordinated acts of terrorism to strike the World Trade Center in New York City, the Pentagon in Arlington County, Virginia, and an additional target in Washington, D.C. Two aircraft hit the World Trade Center while the third hit the Pentagon.  However, one plane never arrived at its target; it crashed in a field in Pennsylvania because the passengers fought back.  The intended target is believed to have been either the United States Capitol or the White House.  As a result, 2,977 victims were killed, making it the most deadly terrorist attack on U.S. soil; also the deadliest foreign attack on U.S. soil, exceeding Japan's surprise attack on Pearl Harbor in Honolulu, Hawaii, on December 7, 1941, which killed 2,403 victims.  It was carefully planned by al-Qaeda, who sent 19 terrorists to take over Boeing 757 and Boeing 767 aircraft, operated by American Airlines and United Airlines.

Joseph Szydlowski: Joseph Szydlowski (originally Józef Szydłowski; November 21, 1896, Skryhiczyn (in Chełm County, Poland), – July 16, 1988 in Israel), was a Polish-Israeli aircraft engine designer who founded Turbomeca in France.

Wittman Regional Airport: Wittman Regional Airport (IATA: OSH, ICAO: KOSH, FAA LID: OSH) is a county owned public use airport located two nautical miles (4 km) south of the central business district of Oshkosh, a city in Winnebago County, Wisconsin, United States.  It is located adjacent to Pioneer Airport, part of the EAA Aviation Museum.  The airport was named after pioneer air racer, aircraft designer and builder Steve Wittman in 1972.  Originally named "Winnebago County Airport", the name "Steve Wittman Field" was proposed in 1968 and it is also known as Wittman Field.  It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a regional general aviation facility.

Greenwood Municipal Airport: Indy South Greenwood Airport (ICAO: KHFY, FAA LID: HFY) (previously Greenwood Municipal Airport) is a city owned public use airport in Greenwood, a city in Johnson County, Indiana, United States.  It is 10 mi southeast of Indianapolis.  The airport was founded in September 1947 and is primarily used for general aviation.  The airport has several on-field businesses.  Jeff Air Pilot Services provides aircraft rental and pilot training under FAR Part 141, Groh Aviation provides aircraft maintenance and Trammel Air provides aircraft rental and flight instruction.

Kalispell, Montana: Kalispell is a city in, and the county seat of Flathead County, Montana, United States.  The 2015 Census estimates put Kalispell's population at 22,052.  The Kalispell Micropolitan Statistical Area has a population of 93,068 and it is the largest city and commercial center of northwest Montana.  The name Kalispell is a Salish word meaning "flat land above the lake".  Kalispell is also the gateway to Glacier National Park.

Supporting paragraphs: Synergy Aircraft Synergy Kalispell, Montana
Answer: Flathead County