37 lat temu, 30 sierpnia 1984 roku, lot
STS-41 Discovery/F-1 zapoczątkował obecność trzeciego wahadłowca z załogą na orbicie.
Był to dopiero 2-gi lot wahadłowca z 6-osobową załogą oraz z drugą Amerykanką
Judith Arlene Resnik na pokładzie.
W ładowni promu znajdowały się po raz pierwszy aż trzy ładunki satelitarne:
- telekomunikacyjny SBS-D (GEO)
https://space.skyrocket.de/doc_sdat/sbs-1.htm- wojskowy LEASAT/SYNCOM 2 (GEO)
https://space.skyrocket.de/doc_sdat/leasat.htm- łącznościowy Telstar 3C (GEO)
https://space.skyrocket.de/doc_sdat/telstar-3.htmPróba startu w dniu 26 czerwca była drugim przypadkiem od czasu Gemini 6A , kiedy załogowy statek kosmiczny doświadczył wyłączenia silników tuż przed startem (w T-6 s).
Analiza danych telemetrycznych ujawniła, że awaria silnika była spowodowana zatkanym zaworem uniemożliwiającym prawidłowy przepływ ciekłego tlenu do komory spalania.
Dzisiaj pozostaje on najstarszym operacyjnym amerykańskim wahadłowcem w zasobach muzealnych.
STS-41D crew photo (front, left to right): Mullane, Hawley, Hartsfield, and Coats; (back, left to right) Walker and Resnik.STS-41D, Discovery's first launch & landing (8-30-84)27 778 wyświetleń
1984: STS-41D Discovery (NASA)14 529 wyświetleń 2 gru 2008 International Astronautical Federation
35 Years Ago: STS-41D – First Flight of Space Shuttle DiscoveryAug 30, 2019
Space Shuttle Discovery, named after several historical ships of exploration, was the third space-qualified orbiter to be added to the fleet. Incorporating manufacturing lessons learned from the first orbiters as well as through the use of more advanced materials, Discovery weighed nearly 8,000 pounds less than its sister ship Columbia. Discovery rolled out of Rockwell International’s plant in Palmdale, California, on Oct. 16, 1983, and arrived at the Kennedy Space Center (KSC) on Nov. 9 after a cross-country ferry flight from Edwards Air Force Base (AFB) atop the Shuttle Carrier Aircraft (SCA), a modified Boeing 747. After ground processing, Discovery was mated to its External Tank (ET) and Solid Rocket Boosters (SRBs) in the Vehicle Assembly Building (VAB) and rolled out to Launch Pad 39A on May 19, 1984. A Flight Readiness Firing, an 18-second test of the shuttle main engines conducted before the first flight of an orbiter, was successfully completed on June 2.
Left: Space Shuttle Discovery rolls out of Rockwell’s Palmdale facility.
Right: Discovery atop the SCA during the cross-country ferry flight.(...)
https://www.nasa.gov/feature/35-years-ago-sts-41d-first-flight-of-space-shuttle-discovery'Silent, Except for the Wind': 30 Years Since the Maiden Countdown of Discovery (Part 1)By Ben Evans, on June 28th, 2014
Thirty years ago, this week, Discovery prepared for her maiden voyage and the third shuttle flight of 1984. On 26 June, it brought NASA face to face with the harsh nature of launching humans into space. Photo Credit: NASAThe calm, measured tones of NASA commentator Mark Hess provided an assurance that shuttle launches had become the stuff of routine. It was 26 June 1984—30 years ago, this week—and after a false start the previous day, all seemed to be proceeding normally as the final seconds ticked away to the maiden voyage of the new orbiter, Discovery. Strapped into the flight deck were astronauts Hank Hartsfield, Mike Coats, Mike Mullane, and Steve Hawley, whilst downstairs on the middeck were Judy Resnik and McDonnell Douglas engineer Charlie Walker, flying as part of a commercial contract with NASA. Walker had been training with the crew since the previous summer, but the others had been assigned in February 1983. It had been a long 16 months. (...)
https://www.americaspace.com/2014/06/28/silent-except-for-the-wind-30-years-since-the-maiden-countdown-of-discovery-part-1/'Like Drowned Rats': 30 Years Since the Maiden Countdown of Discovery (Part 2)By Ben Evans, on June 29th, 2014
Close-up view of Discovery’s three main engines, still exhibiting evidence of scorching from their momentary ignition on 26 June 1984, in the wake of the shuttle program’s first Redundant Set Launch Sequencer (RSLS) abort. Photo Credit: NASA(...) Instantly, Coats, whose responsibility as pilot was to monitor the engines during ascent, jabbed his finger onto the button to shut it down. The status indicator did not change; it remained dark. Downstairs, Walker’s eyes were focused intently on the procedures for “Mode 1 Egress,” the instructions for opening the side hatch and evacuating the vehicle. Meanwhile, on the roof of the Launch Control Center (LCC), the astronauts’ families were watching the unfolding drama … and they were perplexed both by what they could see and what they couldn’t. “A thick summer haze had obscured the launch pad,” wrote Mullane. “When the engines had ignited, a bright flash had momentarily penetrated that haze, strongly suggesting an explosion. As that fear had been rising in the minds of the families, the engine-start sound had finally hit … a brief roar.” The sound echoed off the walls of the gigantic Vehicle Assembly Building (VAB) and was gone. Within seconds, it became clear what had happened.
“ … we have a cutoff … we have an abort by the on-board computers of the orbiter Discovery … ”(...)
https://www.americaspace.com/2014/06/29/like-drowned-rats-30-years-since-the-maiden-countdown-of-discovery-part-2/'You'd Be Booked Up': 30 Years Since the Maiden Voyage of Shuttle Discovery (Part 1)By Ben Evans, on August 30th, 2014
An ominous cloud of smoke billows away from Pad 39A in the seconds after a problematic Main Engine Start on 26 June 1984. Photo Credit: NASAThirty years ago, today (30 August 1984), the Shuttle Discovery—which would become, in time, the most-flown member of NASA’s fleet of orbiters—embarked on her maiden space voyage, launching from Pad 39A at the Kennedy Space Center (KSC). Aboard Discovery were Commander Hank Hartsfield, Pilot Mike Coats, Mission Specialists Mike Mullane, Steve Hawley, and Judy Resnik, and Payload Specialist Charlie Walker. During their six days in space, they became the first shuttle crew to deploy as many as three commercial satellites, they extended an experimental solar array “wing,” and they became forever known to history as “The Icebusters.” However, as described in a previous AmericaSpace history article, the 41D mission had already experienced more than its fair share of excitement, before Discovery even departed the launch pad. (...)
https://www.americaspace.com/2014/08/30/youd-be-booked-up-30-years-since-the-maiden-voyage-of-shuttle-discovery-part-1/'Icebusters': 30 Years Since the Maiden Voyage of Shuttle Discovery (Part 2)By Ben Evans, on August 31st, 2014
“Glowing gold,” the OAST-1 solar sail rises prominently from the payload bay during Mission 41D. Photo Credit: NASA(...) Syncom 4-1, the first of new series, was assigned to 41D, originally scheduled for June 1984, whilst Syncom 4-2 was due to launch aboard Mission 41F in August. By the time of 41D’s on-pad abort, the 41F payload—which also included SBS-4 and Telstar-3C—was in the final stages of processing for its early August launch. In the wake of the abort, NASA considered it more straightforward to switch the entire 41F commercial payload onto 41D, and reschedule Syncom 4-1 for launch later in the year. Consequently, the second Syncom 4 entered orbit ahead of the first. The Syncom 4-2 deployment came at 9:16 a.m. EDT on 31 August and occurred perfectly; the satellite departed the bay at a velocity of 2.3 feet per second (0.7 meters per second), spinning at a couple of revolutions per minute. Very soon, it was in the process of executing the required maneuvers to insert itself into geostationary transfer orbit. (...)
https://www.americaspace.com/2014/08/31/icebusters-30-years-since-the-maiden-voyage-of-shuttle-discovery-part-2/https://www.nasa.gov/mission_pages/shuttle/shuttlemissions/archives/sts-41D.htmlhttps://en.wikipedia.org/wiki/STS-41-Dhttps://pl.wikipedia.org/wiki/STS-41-DHenry W. Hartsfield
https://www.forum.kosmonauta.net/index.php?topic=3714.msg133812#msg133812
Wątek: Kalendarium historycznych wydarzeń (Przeczytany 235368 razy)