Question: In what year did Commodore Byron McCandless's grandson make the first ever untethered free flight in space?

Context paragraphs:
André Borschberg: André Borschberg (born December 13, 1952) is a Swiss entrepreneur, explorer, pilot and speaker.  He is the co-founder of the Solar Impulse project, the first ever round-the-world solar flight, successfully completed in July 2016.  During the Japan-to-Hawaii leg, André broke the world record for longest solo flight in an airplane of any kind: 117 hours and 52 minutes, breaking Steve Fossett's 2006 record.  Before that, on 7 July 2010, André completed the first 24-hour solar powered flight.  The flight set records for the longest manned solar-powered flight and the greatest height reached by a manned solar aircraft.

Space Shuttle: A Journey into Space: Space Shuttle: A Journey into Space is a space flight simulator game designed by Steve Kitchen for the Atari 2600 and published by Activision in 1983 .  It is one of the first realistic spacecraft simulations available for home systems.  "Space Shuttle" was adapted to the Atari 8-bit family and Atari 5200 by Bob Henderson (1984), then ported to the ZX Spectrum (1984), Commodore 64 (1984), Amstrad CPC (1986), and MSX (1986).  The 1984 Activision Software catalog also mentions an Apple II version.

Cornu helicopter: The Cornu helicopter was an experimental helicopter built in France, and is widely credited with the first free flight of a rotary-wing aircraft when it took to the air on 13 November 1907.  Built by bicycle-maker Paul Cornu, it was an open-framework structure built around a curved steel tube that carried a rotor at either end, and the engine and pilot in the middle.  Power was transmitted to the rotors by a drive belt that linked both rotors and spun them in opposite directions.  Control was to be provided by cables that could alter the pitch of the rotor blades, and by steerable vanes at either end of the machine intended to direct the downwash of the rotors.

Byron McCandless: Commodore Byron McCandless (September 5, 1881 – May 30, 1967) was a longtime U.S. Navy officer who was awarded the Navy Cross during World War I and the Legion of Merit during World War II.  He was also prominent in the field of vexillology (the study of flags), and helped design two separate versions of the Flag of the President of the United States.  He was the father of Bruce McCandless, also a naval officer, and the grandfather of NASA astronaut Bruce McCandless II.  Commodore McCandless was later promoted to the rank of Rear Admiral on the retired list.

Shakti Soundar Rajan: Shakti Soundar Rajan is an Indian film director who predominantly works in Tamil cinema.  After making his debut as a director with "Naanayam" (2010), he achieved a breakthrough with "Naaigal Jaakirathai" (2014).  His next film, "Miruthan" (2016), was the first ever zombie thriller in the Tamil cinema industry.His upcoming film, "Tik Tik Tik (2017 film)", was the first ever Space film in the Indian cinema .

F/A-18 Interceptor: F/A-18 Interceptor is a combat flight simulator developed by Intellisoft and published by Electronic Arts for the Amiga in 1988.  The player mainly flies the F/A-18 Hornet, but the F-16 Fighting Falcon is also available for aerobatics, free flight and the first mission.  Contrary to the title of the game, the real F/A-18 is not a true interceptor aircraft, having been designed instead as an anti-ship strike fighter.

Bruce McCandless II: Bruce McCandless II (born June 8, 1937), (Capt, USN, Ret.) , is an American former naval officer and aviator, electrical engineer, and former NASA astronaut.  During the first of his two Space Shuttle missions he made the first ever untethered free flight using the Manned Maneuvering Unit in 1984.

ABS-CBN Digital Media: ABS-CBN Digital Media, commonly known as Digital Media Division, formerly known as ABS-CBN Interactive, is the digital media and internet division of ABS-CBN.  It was formerly a separate company operating as a wholly owned subsidiary of ABS-CBN Corporation until 2013, when ABS-CBN Interactive, Inc. was merged to its parent.  ABS-CBN Digital Media is responsible for overseeing all of ABS-CBN's internet and digital properties which include websites, mobile and web applications, social media accounts, and the distribution of ABS-CBN's contents (TV channels, audio channels, TV programs, films, music recordings, music videos, images, magazines, books, news, etc.. .)  to digital and online space.  ABS-CBN Digital Media has made many first in Philippine media, such as the first ever TV network website (ABS-CBN. com launched in 1995), the first ever Filipino news website (ABS-CBNnews. com launched in 1997), and the first Filipino video streaming website (TFC Now!  launched in 2005).

Fernando Alonso (engineer): Fernando Alonso Fernández (born 1956) is the Head of the Military Aircraft division of Airbus Defence and Space and has been an Airbus employee since 1982.  Until March 2015 he was Head of Flight and Integration Tests at Airbus.  During his career so far, he has accumulated more than 3000 hours of test flights on new aircraft, such as the A318, A320, A330, A340, A340-600 and A350 XWB.  He was part of the crew of the first ever A380 flight together with Jacques Rosay and four others.

STS-41-B: STS-41-B was the tenth NASA Space Shuttle mission and the fourth flight of the "Challenger" .  It launched on February 3, 1984, and landed on February 11 after deploying two communications satellites.  It was also notable for including the first untethered spacewalk.

Supporting paragraphs: Byron McCandless Bruce McCandless II
Answer: 1984