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Episodes Tagged with "Lunar Module"

Posted on September 20, 2018

When Scott tried to release the lunar module, he did not hold the button long enough so the lander got hung on the capture latches.

Posted on February 12, 2015

In January 1960, President Eisenhower directed NASA Administrator Glennan to accelerate the Super Booster Program that had recently been assigned to NASA. This order ensured the transfer of the von Braun group from the Army Ballistic Missile Agency t...

Using a model at upper left, William Rector of General Dynamics Corp. describes the design his company proposed for the Apollo lunar mission

Spacecraft modules in this drawing were identified in the Space Task Group’s request for proposals from contractors for developing and producing the command module

Saturn 1 test

Saturn 1 test 2

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At lower left, E. E. Clark and Carlos de Moraes of the Martin Company display three of a dozen command module configurations considered before the choice of the one to the right

ASA’s second Administrator, James E. Webb (at center above), and George M. Low (right above) of NASA Headquarters receive a model of General Electric’s proposed vehicle

Posted on February 19, 2015

In May 1961, NASA was not really prepared to direct an enormous Apollo program designed to fly its spacecraft to the moon. New and special facilities would be needed and the aerospace industry would have to be marshaled to develop vehicles not easily...

David G. Hoag, technical design director at the laboratory, examines the inertial measuring unit that would measure changes in Apollo spacecraft velocity when propulsion systems were fired

MIT Instrumentation Laboratory Director C. Stark Draper inspects a mockup of the Apollo guidance and control system in the September 1963

astronaut positions

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...

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Earth Orbit Rendezvous

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Posted on March 5, 2015

Many historians agree, the U.S. took its first step toward the moon in the spring of 1957, four years before President Kennedy declared the national goal of landing a man on the Moon, and returning him safely to the Earth. While still preparing for t...

12-Second stage (S-IV)

11-Booster stage (S-I)

10-Proposed C-2

9-C-1 and earlier vehicles

8-Model of blockhouse at Launch Complex 34

7-Vehicles using Titan and Atlas stages

6-Saturn C

5-Saturn B

4-Preliminary concept of Launch Complex 34, Cape Canaveral

3-Early H-1 Engine

2-Thor-Jupiter engine

1-Proposed configuration of a clustered booster

Posted on March 12, 2015

Just as launch complex 34 dwarfed its predecessors, Saturn’s checkout represented a new magnitude in launch operations. The Saturn C-1 stood three times higher, required six times more fuel, and produced ten times more thrust than the Jupiter. Its si...

Lifting the first stage from the transporter

Hoisting the stage in vertical attitude

Erecting the upper stages

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

16-Unloading Compromise in Florida

15-S-I and S-IV stages aboard the Compromise

14-Booster movement around Wheeler Dam

11-Launch Complex 34

10-Configurations of Saturn flight vehicles

9-Saturn Barge route

7-Six-engine configuration of the S-IV stage

6-Redesigned tail of the Saturn booster

5- The barge Palaemon

3-First horizontal mating of the Saturn vehicle

2-Movement of dummy S-IV stage to checkout

Posted on March 18, 2015

No previous maiden launch had gone flawlessly, and the Saturn C-1 was considerably more complicated than any rocket launched thus far. Launch Operations Directorate officials gave the rocket a 75% chance of getting off the ground, and a 30% chance of...

To assemble the large Saturns, NASA needed a plant, preferably one already built. The Michoud facility (above), close to New Orleans, suited the requirements

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Modules of the Apollo spacecraft were tested in Florida in the Manned Spacecraft Operations Building. Above, NASA officials Walt Williams, Merritt Preston, Kurt Debus, Brainerd Holmes, and Wernher von Braun

Maiden launch of the Apollo program- Saturn SA-1 from Cape Canaveral, 27 October 1961

First Saturn Launch

Liftoff of Saturn I. Note the long cable mast falling away on the right

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Abe Silverstein, NASA’s Director of Space Flight Development, is shown touring a rocket engine facility

1-Launch Complex 34, blockhouse interior

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

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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

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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

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2-Tm-1 mockup of the Lunar Module

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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...

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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.

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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 February 11, 2016

“…our building’s shaking here. Our building’s shaking! Oh it’s terrific, the building’s shaking! This big blast window is shaking! We’re holding it with our hands! Look at that rocket go into the clouds at 3000 feet!…you can see it…you can see it…oh ...

6-A crescent Earth, as photographed from Apollo 4

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4-Apollo 4 unmanned mission lifts off from launch pad 39A at the Kennedy Space Center

3-Apollo_4_on_the_night_before_launch,_Kennedy_Space_Center,_Florida,_1967

2-Apollo 4 on launch pad 39

1-apollo 4 mating

Posted on February 18, 2016

“The fire-in-the-hole abort was the most critical test of the mission and one we had to accomplish successfully prior to a manned mission.” Gene Kranz – Flight Director Apollo 5

6-Apollo5 Launch

5-Apollo_5_on_pad with Saturn 1B

4-Lem inside adapter hoisted

3-Lunar Module 1 being mated to the Spacecraft Lunar Module Adapter in preparation for launch as Apollo 5

2-LM1Delivered to the Cape

1-Apollo 5 Mission Patch

Posted on February 25, 2016

The success of Apollo 4 gave good reason to believe that the Saturn V could be trusted to propel men into space. But NASA pushed on with its plans for a second unmanned booster flight, primarily to give the Pad 39 launch team another rehearsal before...

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4-Apollo 6’s interstage falling away

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1-The Lunar Module Test Article (LTA-2R) is being moved for mating with the spacecraft Lunar Module Adapter

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Posted on October 19, 2016

McDivitt later said that the engine had come on abruptly, but with the tremendous mass, acceleration was very slow – it took the whole 5 seconds to add 11 meters per second to the speed.

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2-probe-and-drogue-operations

1-the-apollo-command-modules-docking-probe-was-removed-from-the-inside-to-allow-access-to-the-lunar-module-through-the-tunnel

Posted on October 26, 2016

On the fourth day of the flight of Apollo 9, Schweickart felt better than expected as he worked his way into the lander to get it ready for the EVA. By the time he had put on the backpack, McDivitt was ready to let him do more – to stand on the lunar...

3-scott-standing-in-the-open-hatch-of-cm-gumdrop-is-photographed-in-turn-by-schweickart

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Posted on November 2, 2016

When Scott tried to release the lunar module, he did not hold the button long enough so the lander got hung on the capture latches.

3-lunar-module-ascent-stage-photographed-from-commandservice-module

2-mcdivitt-and-schweickart-show-spiders-landing-gear-to-scott-before-they-pull-away-to-evaluate-lunar-module-operations-spider-is-flying-upside-down-to-the-earth-far-beneath

1-apollo-9-lunar-module-in-lunar-landing-configuration

Posted on November 9, 2016

Even before crawling back into the command module, McDivitt said he was tired and ready for a three-day holiday.  Another 140 hours would pass before touchdown in the Atlantic, but the crew had achieved more than 90 percent of the mission objectives.

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Posted on November 16, 2016

Although the contractors had shipped excellent spacecrafts, preparations at Kennedy did not go quickly from the assembly building to the launch pad. Testing was delayed several days in order to stay out of the way of Apollo 9 pre-flight activities. A...

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Posted on November 23, 2016

Thomas P. Stafford was the first member of his Naval Academy Class of 1952 to pin on the first, second, and third stars of a General Officer. He flew six rendezvous in space; logged 507 hours and 43 minutes in space flight and wore the Air Force comm...

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1-cernanstafford-training-lm

Posted on November 30, 2016

On Cernan’s second space flight, he was lunar module pilot of Apollo 10, May 18-26, 1969.  Apollo 10 was the first comprehensive lunar-orbital qualification and verification flight test of an Apollo lunar module. Cernan was accompanied on the 248,000...

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Posted on December 7, 2016

John Young enjoyed the longest career of any astronaut thus far. Over the course of 42 years of active NASA service he made six space flights and is the only person to have piloted, and been commander of, four different classes of spacecraft: Gemini,...

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1-youngtrainingcm

Posted on December 21, 2016

On May 18th 1969, a king, some congressmen, other distinguished guests, and a hundred thousand other watchers waited at scattered vantage points around the Cape area. At 49 minutes past noon, Rocco Petrone’s launch team sent Apollo 10 on its way to t...

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Posted on February 15, 2017

As the lunar module approached, Young saw it through his sextant at a distance of 259 kilometers. Stafford and Cernan got a radar lock on the command module shortly after the insertion burn and watched with interest as the instrument measured the dwi...

3CSM and LM pre-jettison attitude

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1-A10-redocking

Posted on February 22, 2017

“Hey, Apollo – Houston, this is Apollo 10. Look, I know you ran some studies, but by golly, we can see Snoopy, and he isn’t too far away! He’s catching up with us. Can you talk to the FIDOS? He’s right down below us. We can occasionally see him tumbl...

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2-Cernan-Stafford-Young on carrier

1-relative-orbitsofCM-DescentStage

Posted on July 26, 2017

What do we call this strange region between earth and moon? Cislunar space is the most common term, Is it day or night?  Humans generally define night as that time when our planet is between our eyes and the sun, so this must be considered constant d...

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Posted on August 2, 2017

As they passed behind the moon, they had just over 8 minutes to go before the burn. They were super-careful now, they checked and rechecked each step several times. It had to be perfect. Just one digit in the computer out of place could send them int...

3-Newspaper

2-Lunar Orbit Insertion

1-Solar corona of the moon as first seen by apollo 11

Posted on July 31, 2018

Milt Windier’s team at mission control quickly reviewed the status of the remaining four engines, ran the computations for the new engine cutoff times, and passed them to the crew.

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P2-stage 2 engine cluster

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Posted on November 13, 2014

Posted on January 29, 2015

President Kennedy proposed the manned lunar landing as the focus of the US space program but, at the time of his address, only one American, Alan B. Shepard, Jr. had been into space, on a suborbital lob shot lasting 15 minutes. No rocket launch vehic...

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Posted on February 5, 2015

The goal of the nation’s space program should be the scientific exploration of the moon and the planets but also to recognize that nontechnical factors are vital to public acceptance of a space program. Human exploration of the moon and planets would...

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