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Episodes Tagged with "Robert Seamans"

Posted on February 26, 2015

Max Faget thought the first stage of the moon rocket should use four solid-fueled engines, 6.6 meters in diameter.  He reasoned these could certainly accomplish whatever mission was required of either the Saturn or Nova, and it would be more cost eff...

John_Houbolt_and_LOR2

Earth Orbit Rendezvous

Apollo_Direct_Ascent

Posted on March 26, 2015

The mode that Apollo would use to land on the moon was the most studied, analyzed, and debated decision made for the lunar landing program.  There were four main choices Direct-ascent, Earth-Orbit Rendezvous, Lunar-Orbit Rendezvous, and Lunar Surface...

two landing techniques proposed for the direct ascent mode

SA-1

RendezvousMethods

proposed lunar-surface-rendezvous procedure, a propellant-transfer vehicle takes fuel from the tanker to a manned space vehicle. After loading the fuel, the two astronauts would fire the engine of their spacecraft to return to the earth

Major configuration changes in the Apollo spacecraft from May 1960 to July 1962

Early design concepts of C-1 and C-5 versions of the Saturn launch vehicles

A ferry that would leave a command ship in orbit around the moon, visit the lunar surface, and then return to the command ship for the voyage back to the earth

Posted on April 2, 2015

Langley’s brochure for the Golovin Committee described Lunar landers of varied sizes and payload capabilities.  There were illustrations and data on a very small lander that was able to carry one man for 2 to 4 hours on the moon.  There was an “econo...

Early design concepts of C-1 and C-5 versions of the Saturn launch vehicles

NASA announced selection of the lunar-orbit-rendezvous landing technique at an 11 July 1962 press conference. left to right James E. Webb, Robert C. Seamans, Jr., D. Brainerd Holmes, and Joseph F. Shea

Harry C. Shoaf (Space Task Group Engineering Division 15 November 1961 of a proposed lunar lander to be used with an advanced version of the Mercury spacecraft

concept of a small lunar lander during descent to the surface of the moon, as proposed by Langley Research Center employees in October 1961

Posted on April 9, 2015

Posted on April 16, 2015

After viewing the Apollo spaceport being built in Florida, President Kennedy flew on to Huntsville, Alabama. There, during a tour of Marshall and a briefing on the Saturn V and the lunar-rendezvous mission by von Braun, Jerome Wiesner interrupted Von...

REF: 2-903-6 SA-2 LAUNCH AT CAPE. IGNITION OF ROCKET (SATURN 1 VEHICLE)

SA-2 erected on launch pedestal

Wernher_von_Braun_confers_with_Brainerd_Holmes_and_Nicholas_Golovin

Posted on April 23, 2015

The Apollo contract specified a shirt-sleeve environment. For this reason, North American was told not to include in its design a hatch that opened by explosives, like Mercury’s. An accidentally blown hatch in space would cause an instant vacuum and ...

The impact facility at North American was used to drop-test the CM

Selection of Little Joe II completed the Apollo family of launch vehicles.

Scott Carpenter, John Glenn, and Walter Schirra in 1963 inspect a full-scale mock up of the Apollo CM

North American Aviation Stormy,

Interior of a partial full-scale mockup of the Apollo command module

major parts of the command module structure

Posted on April 30, 2015

Posted on May 7, 2015

“The contractor role in Houston was not very firm. Frankly, they didn’t want us. There were two things against us down there. Number one, it was a Headquarters contract, and it was decreed that the Space Centers shall use GE for certain things; and n...

General Electric employees monitor activities of a spacecraft test in the automatic-checkout-equipment spacecraft control room in 1965

comparison of spacecraft and launch vehicle configuration

Apollo tracking network in 1966. Radar stations with large antennas for continuous tracking and communications were at Goldstone, California; Madrid, Spain; and Canberra, Australia

Posted on May 14, 2015

…From the information they gathered on the existing technical problems, Disher and Tischler concluded that prospects were only one in ten that Apollo would land on the moon before the end of the decade….

Full-scale model of the command module, above- the strake aerodynamic devices may be seen at either side of the spacecraft just above the aft heatshield

Removing LM from S=IVB stage

On 16 November 1963 in Cape Canaveral’s Blockhouse 37, NASA’s new manned space flight chief George Mueller

Communications with the moon as the earth turned. Astronauts on the moon’s surface also could talk to one another

Posted on May 21, 2015

Max Faget’s position was that considering the difficulty of the job,  if each mission was successful half the time, it would be well worth the effort.  But Gilruth thought that was too low.  He want a 90% mission success ratio and a 99% ratio for Ast...

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The cabin section (or primary structure) of the CM is assembled at North American in 1965

The CM probe would slip into the LM’s dish-shaped drogue, and 12 latches on the docking ring would engage, to lock the spacecraft together, airtight

Full-scale model of the service module, resting on a mockup of a spacecraft-lunar module adapter, with panels off to reveal part of the internal arrangement

Jettison of the launch escape system (right) after successful launch, also pulls away the boost protective cover that protects the windows from flame and soot

On the drawing of the launch escape system at upper right, the canard aerodynamic devices are near the top of the escape tower

Posted on June 11, 2015

Since the lunar module would fly only in space (earth orbit and lunar vicinity), the designers could ignore the aerodynamic streamlining demanded by earth’s atmosphere and build the first true manned spacecraft, designed solely for operating in the s...

6-NASA engineers in 1964 decided that astronauts could stand in the lunar module cabin during the trip to the lunar surface. Note triangular windows

7-Proposed sleeping positions for astronauts on the moon

5-Mockup of lunar module cabin with seats

4-The drawing of the stage indicates positions of components

3-underside of the lunar module descent stage shows fuel tank installation

2-Administrator James Webb examines models of the lunar and command modules in docked position

1-Lunar module generations from 1962 (above left; the vehicle originally proposed by Grumman) to 1969

Posted on June 17, 2015

The Lunar Lander originally had two docking hatches, one at the top center of the cabin and another in the forward position, or nose, of the vehicle, with a tunnel in each location to permit astronauts to crawl from one pressurized vehicle to the oth...

3-improved lunar module features – ladder, porch, hatch, and rendezvous window

2-he addition of a ladder on a landing gear leg made the task much easier

1- Astronauts found a knotted rope from the lunar module difficult to climb down (or up)

Posted on July 2, 2015

At various stages of lunar module design, mockup reviews were conducted to demonstrate progress and identify weaknesses. These inspections were formal occasions, with a board composed of NASA and contractor officials and presided over by a chairman f...

5-Removing the LEM

4-ApolloSpacecraftLMAdapterDiagram

3-Apollo_Spacecraft_diagram

2-Tm-1 mockup of the Lunar Module

1-lm-6-rendezvous-radar-antenna-assy-sm

Posted on July 9, 2015

The key to high-energy stages was to use liquid hydrogen as the fuel.  Liquid hydrogen fuel appealed to rocket designers because of its high specific impulse, which is a basic measure of rocket performance. Specific Impulse is the impulse delivered p...

4-SIV-SIVB

3-Saturn 1b-V

2-Cutaways

1- SIV_rocket_stage

Posted on July 23, 2015

Posted on July 30, 2015

Selection of Group Two virtually depleted the pool of qualified candidates from the small corps of test pilots in the country, and it was the last group for which test-pilot certification would be a requirement. The new trainees reported to Houston i...

2-NASA_Group_1_and_2_Astronauts_Photo_With_Autopens

2-Back row- See, McDivitt, Lovell, White, & Stafford. Front row- Conrad, Borman, Armstrong, & Young

1- Project_Mercury_AstronautsBack row- Shepard, Grissom, Cooper; front row- Schirra, Slayton, Glenn, Carpenter.

Posted on August 5, 2015

With Group 4, for the first time, the selection criteria did not include a requirement for test pilot proficiency. Selectees who were not qualified pilots would be assigned to the Air Force for a year of flight training. The primary scientific requir...

Group4Astronaut

4-Group 4 L-R- Garriott, Gibson. Front row, L-R- Michel, Schmitt, Kerwin.

3-Astronaut_Group_Three_-_GPN-2000-001476

Posted on August 13, 2015

“Some of those guys came in figuring, “I’ll write my textbooks and my thesis and teach [university courses] and I’ll come by twice a week and be an astronaut.” Well, that didn’t work …. We were devoting our lives to this whole thing, and you couldn’t...

5-Back row, from L-R- Swigert, Pogue, Evans, Weitz, Irwin, Carr, Roosa, Worden, Mattingly, Lousma. Front row, from L-R- Givens, Mitchell, Duke, Lind, Haise, Engle, Brand, Bull, McCandless

Posted on October 29, 2015

The tragedy of Apollo 1 was widely reported in the Soviet Union. The Soviets sent condolences and letters to the families of the men who had died. But, the Soviet Press criticized the US for an overzealous attempt to send men to the moon.

CM parts were studied and catalogued in the Pyrotechnics Installation Building at Kennedy Space Center.

The CM wiring harness goes through x-ray inspection.

apollo-1-disassembly

Posted on November 5, 2015

What went wrong?  Even years after the investigators began to sift through the wreckage of Apollo 1 piece by piece, no one could say exactly.  But within weeks the general picture became clear:  The fire was a disaster waiting to happen.

Deputy Administrator Seamans, Administrator Webb, Manned Space Flight Administrator George E. Mueller, and Apollo Program Director Phillips testify before a Senate hearing on the Apollo accident

2-Apollo1Langley

1-Apollo1 Inve

Posted on November 12, 2015

Posted on October 9, 2014

Some significant goals had been set for the last two Gemini flights. For example, the Apollo Spacecraft Program Office wanted a rendezvous in the first spacecraft orbit, which would simulate lunar orbit rendezvous. There was also interest in linking ...

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RichardFGordon

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agena 11

Gemini_11_prime_crew_(Gordon_and_Conrad)

Gemini_11_Gordon_suits_up for G11