WTF pictures

mouth or rectum pump.JPG
 
I've been waiting for this series to come out for a long, long time now....finally being released this month but on of all places Apple TV...wtf?

Always felt a tremendous debt of gratitude owed to these guys...especially for being such a huge part of my Air Force heritage. This is supposed to be the equivalent type of story as Band of Brothers was for the Army and The Pacific was for the Marines Corps.

I sure hope the series does them justice...

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First 2 epiodes have dropped. Watched the first.........Cannonfodder............. Gonna watch the second one tomorrow, Pretty hard to binge watch. Everything it is billed up to b. IMDb has an 8.8 rating
 
TRAGEDY 1967
Nestled beside an umbilical tower, surrounded by a service structure, and encased in a clean room at Cape Kennedy's Launch Complex 34, spacecraft 012 sat atop a Saturn IB on Friday morning, in late January 1967. Everything was ready for a launch simulation, a vital step in determining whether the spacecraft would be ready to fly the following month. During this "plugs out" test, all electrical, environmental, and ground checkout cables would be disconnected to verify that the spacecraft and launch vehicle could function on internal power alone after the umbilical lines dropped out.
By 8:00 that morning, a thousand men, to support three spacesuited astronauts--Virgil Grissom, Edward White, and Roger Chaffee--were checking systems to make sure that everything was in order before pulling the plugs. In the blockhouse, the clean room, the service structure, the swing arm of the umbilical tower, and the Manned Spacecraft Operations Building, this army of technicians was to go through all the steps necessary to prove that this Block I command module was ready to sustain three men in earth-orbital flight. Twenty-five technicians were working on level A-8 of the service structure next to the command module and five more. mostly North American employees, were busy inside the clean room at the end of the swing arm. Squads of men gathered at other places oil the service structure. If interruptions and delays stretched out the test, as often happened, round-the-clock shifts were ready to carry the exercise to a conclusion. Throughout the morning, however, most of the preparations went smoothly, with one group after another finishing checklists and reporting readiness.
After an early lunch, Grissom, White, and Chaffee suited up, rode to the pad (arriving an hour after noon), and slid into the spacecraft couches. Technicians sealed the pressure vessel inner hatch, secured the outer crew access hatch, and then locked the booster cover cap in place. All three astronauts were instrumented with biomedical sensors, tied together on the communications circuit, and attached to the environmental control system. Strapped down, as though waiting for launch, they began purging their space suits and the cabin atmosphere of all gases except oxygen--a standing operating procedure.
STALKED BY THE SPECTRE
For almost a year, the Grissom crew had watched its craft go through the production line, test program, and launch pad preparations. After participating in a multitude of critiques, reading numerous discrepancy reports, and going through several suited trials in the spacecraft in altitude chambers at Downey and the Cape, Grissom's group had learned almost all the idio-syncracies of spacecraft 012. The astronauts knew, if not every nut and bolt, at least the functions of its 88 subsystems and the proper positions for hundreds of switches and controls inside the cockpit. They also knew that the environmental unit had been causing trouble. Indeed, Grissom's first reports on entering the cabin were of a peculiar odor--like sour milk.
As all traces of sea-level atmosphere were removed from the suit circuit and spacecraft cabin, pure oxygen at a pressure of 11.5 newtons per square centimeter (16.7 pounds per square inch) was substituted. The crew checked lists, listened to the countdown, and complained about communications problems' that caused intermittent delays. The men could speak over four channels, either by radio or telephone line, but the tie-in with the test conductors and the monitors was complicated and troublesome. Somewhere there was an unattended live microphone that could not be tracked down and turned off. Other systems, Grissom's crew noted, seemed to be operating normally. At four in the afternoon, one shift of technicians departed and another came on duty.
Near sunset, early on this winter evening, communications problems again caused a delay, this time for ten minutes, before the plugs could be pulled. Thus, the test that should have been finished had not really started, and an emergency egress practice was still to come. The crew was accustomed to waiting, however, having spent similar long hours in trouble-plagued training simulators. About 6:30, Grissom may have been thinking about the jest he had played on Riley McCafferty by hanging a lemon on the trainer.
Donald Slayton sat half a kilometer away at a console in the blockhouse next to Stuart Roosa, the capsule communicator. On the first floor of the launch complex, Gary W. Propst, an RCA employee, watched a television monitor that had its transmitting camera trained on the window of the command module. Clarence A. Chauvin, the Kennedy Space Center test conductor, waited in the automated checkout equipment room of the operations building, and Darrell O. Cain, the North American test conductor, sat next door. NASA quality control inspector Henry H. Rogers boarded the Pad 34 elevator to ride up to the clean room. There, at the moment, were three North American employees: Donald O. Babbitt, pad leader; James D. Gleaves, mechanical technician; and L. D. Reece, systems technician. Reece was waiting to pull the plugs on signal. Just outside on the swing arm, Steven B. Clemmons and Jerry W. Hawkins were listening for Reece to call them to come and help. All of these men and several others in the vicinity at 6:31 heard a cry over the radio circuit from inside the capsule: "There is a fire in here.
 
Stunned, pad leader Babbitt looked up from his desk and shouted to Gleaves: "Get them out of there!" As Babbitt spun to reach a squawk box to notify the blockhouse, a sheet of flame flashed from the spacecraft. Then he was hurled toward the door by a concussion. In an instant of terror, Babbitt, Gleaves, Reece, and Clemmons fled. In seconds they rushed back, and Reece and Clemmons searched the area for gas masks and for fire extinguishers to fight little patches of flame. All four men, choking and gasping in dense smoke, ran in and out of the enclosure, attempting to remove the spacecraft's hatches.
Meanwhile, Propst's television picture showed a bright glow inside the spacecraft, followed by flames flaring around the window. For about three minutes, he recalled, the flames increased steadily. Before the room housing the spacecraft filled with smoke, Propst watched with horror as silver-clad arms behind the window fumbled for the hatch. "Blow the hatch, why don't they blow the hatch?" he cried. He did not know until later that the hatch could not be opened explosively." Elsewhere, Slayton and Roosa watched a television monitor, aghast, as smoke and fire billowed up. Roosa tried and tried to break the communications barrier with the spacecraft, and Slayton shouted furiously for the two physicians in the blockhouse to hurry to the pad.
In the clean room, despite the intense heat, Babbitt, Gleaves, Reese, Hawkins, and Clemmons, now joined by Rogers, continued to fight the flames. From time to time, one or another would have to leave to gasp for air. One by one, they removed the booster cover cap and the outer and inner hatches--prying out the last one five and a half minutes after the alarm sounded. By now, several more workers had joined the rescue attempt. At first no one could see the astronauts through the smoke, only feel them. There were no signs of life. By the time firemen arrived five minutes later, the air had cleared enough to disclose the bodies. Chaffee was still strapped in his couch, but Grissom and White were so intertwined below the hatch sill that it was hard to tell which was which. Fourteen minutes after the first outcry of fire, physicians G. Fred Kelly and Alan C. Harter reached the smoldering clean room. The doctors had difficulty removing the bodies because the spacesuits had fused with molten nylon inside the spacecraft.
As anguished officials gathered, the pad was cleared of unnecessary personnel, guards were posted, and official photographers were summoned. All through the night, physicians labored to complete their grim task. After the autopsies were finished, the coroner reported that the deaths were accidental, resulting from asphyxiation caused by inhalation of toxic gases. The crew did have second and third degree burns, but these were not severe enough to have caused the deaths.
Most persons who had been connected with the space program in any way remember that the tragedy caught them by surprise. In six years of operation, 19 Americans had flown in space (7 of them, including Grissom, twice) without serious injury. Procedures and precautions had been designed to foresee and prevent hazards; now it was demoralizing to realize the limits of human foresight. Several other astronauts had died, but none in duties directly associated with space flight. Airplane crashes had claimed the lives of Elliot See, Charles Bassett, and Theodore Freeman. These were traumatic experiences, but the loss of three men during a ground test for the first manned Apollo flight was a more grievous blow.
Memorial services for the AS-204 crewmen were held in Houston 30 January, although their bodies had been flown north from Kennedy for burial. Grissom and Chaffee were buried in Arlington National Cemetery and White at the Military Academy at West Point. Amid these last rites, a similar tragedy took the lives of two men in an oxygen-filled chamber at Brooks Air Force Base in San Antonio. Airman 2/c William F. Bartley and Airman 3/c Richard G. Harmon were drawing blood samples from rabbits when a fire suddenly swept through the enclosure. The spacecraft and chamber tragedies pinpointed the dangers inherent in advanced space-simulation work.
The accident that took the lives of Grissom, White, and Chaffee was heartrending, and some still insist totally unnecessary; but NASA had always feared that, in manned space flight, danger to pilots could increase with each succeeding program. Space flight officials had warned against undue optimism for years, pointing out that any program that large inevitably took its toll of lives--from accident, overwork, or illness brought on by the pressures of such an undertaking. Man was fallible; and a host of editorial cartoons reiterated this axiom for several months after the fire. One, by Paul Conrad in the Los Angeles Times, showed the spectre of death clothed in a spacesuit holding a Mercury spacecraft it one hand, a Gemini in the other, and with the smoldering Apollo in the background. It was captioned "I thought you knew, I've been aboard on every flight."
NASA Apollo Mission Apollo-1-- Chariots For Apollo
 
Anyone know why they would want pure oxygen in the cabin?
We breathe air (about 80% nitrogen) at about 15psi here on earth.
Pure oxygen can be comfortably and safely breathed all the way down to 6 or 8psi, iirc. It's a lot easier (lighter) to build a spaceship that's pressurized at the lower psi.
Might be other reasons too, but that's the one I remember.... the lighter weight of the ship.
 
As all traces of sea-level atmosphere were removed from the suit circuit and spacecraft cabin, pure oxygen at a pressure of 11.5 newtons per square centimeter (16.7 pounds per square inch) was substituted.
They pressurized the oxygen to 16.7 so they were not saving weight. I'm sure they had their reasons. Just seems odd to me. Fire is always a big concern on ships and planes. Wonder what they did on later flights?
Not trying to second guess them. They were literately venturing into the unknown. I remember most of the space shots in the 60s. It was all that was on TV during the missions. My uncle Ward was a meteorologist for Eastern Airlines stationed in Miami, he was in charge of the weather forecasting for that part of the world. He told us about working with people at NASA with the weather forecasts for launches and splash downs.
Remember all the Gulf commercials?
 
The waveguide for the Radar in the U2/TR1 were pressurized to ~8 psia with nitrogen to prevent arcing. A low psia pressure at altitude is positive pressure with regards to the "outside" pressure. Maybe later they transitioned to a divers mix. For weight considerations they may have gone with "what's available".
 
They pressurized the oxygen to 16.7 so they were not saving weight.
For starters, 16.7 psi is just 1.7psi above atmospheric. So it was just very slightly pressurized.
But what I meant about saving weight is the capsule construction. A pressure vessel that holds 6psi (in space) will be much more lightly constructed than one built robust enough to hold 15psi in space.

The fact that pure oxygen can be safe to breathe at lower pressure meant a weight savings in capsule construction... nothing to do with the weight of the gas.
 
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