Archive

Posts Tagged ‘N-1 Rocket’

08/13/2019 – Ephemeris – Apollo 11 at 50: Soviet Moon landing plans

August 13, 2019 Comments off

Ephemeris for Tuesday, August 13th. Today the Sun will be up for 14 hours and 9 minutes, setting at 8:51, and it will rise tomorrow at 6:43. The Moon, 2 days before full, will set at 5:36 tomorrow morning.

The United States thought it was in a race to the Moon with the Soviets in the 1960s. The Russians in the meantime were pushing for space firsts, like the first man in space, first woman, first space walk. So they started too late with their Moon landing plans, on top of that their chief rocket designer Sergei Korolev died of a botched surgery in 1966 leading to a struggle for leadership. Despite their huge N-1 rocket, the payload to the lunar surface was less than the US had. They would have a 2 man crew in the Soyuz capsule and a one man lander they designated LK. The LK, much smaller than the US’s Lunar Module and to my knowledge was never tested and it never flew in space. The four moon rockets they built never flew more than a few seconds each.

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.

Addendum

Saturn V vs. N1

Comparison between The United States Saturn V and the Soviet N-1. Click on the image to enlarge. Credit Karl Tate, Space.com.

Lunar Descent and Ascent Diagram

The Lunar landing strategy. When it comes to landing one cosmonaut space walks from the Soyuz (LOK) to the LK lander. The fifth stage called Block-D accomplishes the de-orbit burn of the lander, and is jettisoned. The LK is a two part vehicle somewhat like the American LM, except one engine accomplishes both landing and takeoff. On lunar rendezvous with the LOK the LK is the passive member of the docking. Credit: Rockets and People Volume IV The Moon Race by Boris Chertok/NASA.

The Rockets and People series can be downloaded from NASA.gov:  https://history.nasa.gov/series95.html. Look under Memoirs.

The LK Lander.

The LK Lander. Credit: Rockets and People Vol. IV/ NASA.

LK vs. LM

A comparison of the size of the LK Lander and the American Lunar Module (LM).  Click on the image to enlarge. Credit Wikipedia/ebs08.

08/12/2019 – Ephemeris – Apollo 8’s giant leap to the Moon

August 12, 2019 Comments off

Ephemeris for Monday, August 12th. Today the Sun will be up for 14 hours and 12 minutes, setting at 8:53, and it will rise tomorrow at 6:42. The Moon, 3 days before full, will set at 4:38 tomorrow morning. | On the road to the Apollo 11 landing on the Moon 50 years ago was Apollo 8’s Christmas orbiting of the Moon in 1968. Apollo 7’s shakedown of the Command and service modules in October that year meant that they had a good spacecraft. However on September 28th that year a US spy satellite photographed a giant rocket of approximately the same size as the Saturn V on a launch pad at the Tyuratam Missile Test Center in the Soviet Union. Were they going to get to the Moon before us? Also Grumman was behind schedule with producing the Lunar Module for Apollo 8’s scheduled shakedown of that module in Earth orbit. NASA then decided to send Apollo 8 to the Moon instead and not miss a launch opportunity.

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.

Addendum

KH-8 spy satellite photo of an N-1 rocket on the launch pad on September 28, 1968.

Apollo 8 crew from he left: Frank Borman, Bill Anders, and Jim Lovell.

The famous Earthrise photograph: ”We went to the Moon and Discovered the Earth.” Credit NASA/Apollo 8/Bill Anders.

 

05/13/2019 – Ephemeris – The Moon Rockets

May 13, 2019 Comments off

Ephemeris for Monday, May 13th. Today the Sun will be up for 14 hours and 44 minutes, setting at 9:01, and it will rise tomorrow at 6:15. The Moon, 2 days past first quarter, will set at 4:26 tomorrow morning.

In the race to the Moon in the 1960s we never really knew what the Soviet Union was doing, or of how far they progressed. We knew that we seemed to be behind because we would get glimpses of their progress when they pulled off some first, some long duration record, or the first woman in space. We never heard of their failures until after the Soviet Union fell in 1991. Their answer to the Saturn V rocket was the N-1, the first test of which was several months before Apollo 11 was launched. In all four N-1 launch attempts were made, none successful. However their counterpart to the Apollo Command and Service Modules still lives after 5 decades, it’s call the Soyuz, used to carry cosmonauts and astronauts to the International Space Station.

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.

Addendum

Comparison between The United States Saturn V and the Soviet N-1. Credit: Griffith Observer, the magazine of Griffith Observatory.

N-1

Base of the N-1 and its 36 rocket engines. The N-1 is assembled horizontally while the Saturn V was assembled vertically.