May 04

Space Rocket History #159 – Zond 6

Trouble began on the sixth day of the flight, November 17. The capsule developed an atmospheric  leak, the pressure first dropping from 760 to 380 mm of Mercury.  With the drop in cabin pressure all the animal test subjects died.  It would have killed any Cosmonaut not wearing a spacesuit.

Proton-K with 7K-L1

Proton-K with 7K-L1

Zone 6 mission profile

Zone 6 mission profile

Zond 6 Double-dip reentry

Zond 6 Double-dip reentry

Apr 20

Space Rocket History An Encore Presentation of Episode #35 – Textbook Spaceflight – Mercury-Atlas 8, Sigmac 7 with Wally Schirra

After Scott Carpenter’s science heavy Mercury-Atlas 7 flight, Nasa’s next mission would concentrate on the technical and engineering aspects of space travel.  Mercury Atlas 8 became the third manned orbital flight of the Mercury program. The pilot selected was Walter M. Schirra, Jr., but most people called him Wally…

Mission Logo

Mission Logo

Wally Schirra

Wally Schirra

Sigma 7

Sigma 7

Lift-off

Lift-off

Splash Down

Splash Down

Recovery

Recovery

Mar 16

Space Rocket History #153 – Zond 5 – Tortoises in Space & Nasa Stennis

The first attempt for a Zond 4 follow-up launched on April 22.  It failed when the Launch Escape System sent an erroneous abort command at T+260 seconds and shut down the Proton booster’s second stage. The escape rocket fired and pulled the descent module to safety.

Zond 5

Zond 5

Zond 5 Recovery

Zond 5 Recovery Indian Ocean

Scientist observing lunar Tortoises

Scientist observing lunar Tortoises

Dec 31

Space Rocket History an Encore Presentation of Episode #23 – Vostok 1 with Yuri Gagarin

“Dear friends, you who are close to me, and you whom I do not know, fellow Russians, and people of all countries and all continents: in a few minutes a powerful space vehicle will carry me into the distant realm of space. What can I tell you in these last minutes before the launch? My whole life appears to me as one beautiful moment. All that I previously lived through and did, was lived through and done for the sake of this moment.” Yuri Gagarin prior to launch of Vostok 1.

space rocket

ImageGen vostok 1 being prepared_500x409Yuri800px-Vostok_1_orbit Hint2

Apr 16

Space Rocket History #109 – Apollo: The PSAC Strikes Back and Saturn SA-2

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 Braun in front of reporters, saying, “No, that’s no good.”  Webb immediately defended von Braun and lunar-orbit rendezvous. The adversaries engaged in a heated exchange until the President stopped them, stating that the matter was still subject to final review.

Wernher Von Braun confers with Brainerd  Holmes & Nicholas Golovin

Wernher Von Braun confers with Brainerd Holmes & Nicholas Golovin

Saturn SA-2 erected on launch  pedestal

Saturn SA-2 erected on launch pedestal

Lift-off of Saturn C1 SA-2

Lift-off of Saturn C1 SA-2

Apr 09

Space Rocket History #108 – Apollo: The Mode Decision – Part 3

“I would like to reiterate once more that it is absolutely mandatory that we arrive at a definite mode decision within the next few weeks. . . . If we do not make a clear-cut decision on the mode very soon, our chances of accomplishing the first lunar expedition in this decade will fade away rapidly.” Wernher Von Braun June 7, 1962.

Rocket Comparison

Rocket Comparison

Shea demonstrates Lunar Docking

Shea demonstrates Lunar Docking

Lunar orbit insertion

Lunar orbit insertion

Apr 02

Space Rocket History #107 – Apollo: The Mode Decision – Part 2

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 “economy” model that could two men for a 24-hour stay. The third model was called the “plush” module, it would carry two men for a 7-day stay on the moon. Weight estimates for the three craft, without fuel, were 580, 1,010, and 1,790 kilograms, respectively…

Langley's Small Lunar Lander Concept.

Langley’s Small Lunar Lander Concept.

Proposed Lunar Lander for an Advanced Mercury

Proposed Lunar Lander for an Advanced Mercury

Design Concepts of Saturn C-1 thru C-5

Design Concepts of Saturn C-1 thru C-5

Mar 26

Space Rocket History #106 – Apollo: The Mode Decision – Part 1

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 Rendezvous.

Direct Ascent Landing Modes

Direct Ascent Landing Modes

Lunar Surface Rendezvous

Lunar Surface Rendezvous

Rendezvous Methods

Three Rendezvous Methods

Comparison of Lander Sizes

Comparison of Lander Sizes

Apollo Spacecraft Configuration Changes

Apollo Spacecraft Configuration Changes