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Soviet-Russian Venera 1962 to 1982 spacecraft
Guest_PhilCo126_*
post Jan 19 2007, 06:55 PM
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For an article on the Soviet-Russian Venera program, I'm searching some high-resolution photos or schemas of the spacecraft themselves (Orbiter and Lander, especially the latter).
I have some photos but mostly low resolution and I'm searching good (color) photos showing the Venera 9 - 10 - 11 - 12 - 13 and 14 landers.
Can anyone help, maybe with photos taken in the Russian musea?
Thanks in advance,
Phill
smile.gif

http://homepage.eircom.net/~jackcelestia/b...ges/veneras.htm
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Guest_PhilCo126_*
post Jan 18 2008, 03:25 PM
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http://www.mentallandscape.com/V_Venus.htm
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Deeman
post Jan 18 2008, 05:12 PM
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QUOTE (PhilCo126 @ Jan 18 2008, 04:25 PM) *


Great Link Phil !
I fell in love with the "Perspective Image" of Venera-13. The one with Horizon ! Great Stuff rolleyes.gif

Dirk,
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Guest_PhilCo126_*
post Jan 18 2008, 05:36 PM
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Great link and superb scale model !!!
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rlorenz
post Jan 19 2008, 02:26 PM
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QUOTE (PhilCo126 @ Jan 19 2007, 01:55 PM) *
For an article on the Soviet-Russian Venera program, I'm searching some high-resolution photos or schemas of the spacecraft themselves (Orbiter and Lander, especially the latter).


Not exactly what you are asking for, but perhaps pertinent to point out that the
Smithsonian Udvar-Hazy center (a must-see, 15 mins from Washington Dulles airport)
has a full-up VEGA spacecraft you can take all the photos you want of...

http://collections.nasm.si.edu/code/emuseu...ch=A19960108000
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Guest_PhilCo126_*
post Jan 19 2008, 04:15 PM
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O.K. great to know, it has been 6 years since I've been in NASM Washington D.C. so any reason for another visit is valid wink.gif
http://www.ninfinger.org/~sven/models/sovietsp/vega.html
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Guest_PhilCo126_*
post Jan 26 2008, 04:30 PM
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Some Venera hardware images here:
http://www.ninfinger.org/~sven/models/Yaho...ders/index.html
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Decepticon
post Jan 27 2008, 04:37 AM
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WOW!

Thank you! Keep them coming!
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Guest_PhilCo126_*
post Jan 27 2008, 01:21 PM
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Venera missions overview:
http://www.russianspaceweb.com/spacecraft_...tary_venus.html

Question: Did the main parachute of the Venus lander have 3 or 4 parachutes?
Clicking the ‘Landing Sequence’ reveals 3 main parachutes: http://www.russianspaceweb.com/venera75.html

While this Russian website shows 1 large main chute just before landing:
http://epizodsspace.narod.ru/bibl/getlend/22.html
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Paolo
post Jan 27 2008, 07:57 PM
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IIRC Venera 9 and 10 had three parachutes and later landers only one


--------------------
I'm one of the most durable and fervent advocates of space exploration, but my take is that we could do it robotically at far less cost and far greater quantity and quality of results.

James Van Allen
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Steffen
post Feb 1 2008, 10:42 AM
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Those Venera were amazing spacecraft indeed.
Some questions:
What is the size of the lander?
Would it been able to float?
Why did these land close together?
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Guest_PhilCo126_*
post Feb 1 2008, 05:36 PM
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In fact, during the first Venera missions ( Venera 1 in 1961 to Venera 8 in 1972 ) the 'lander' was simply a bowl-shaped capsule and only 7 and 8 made it to the surface, although Venera 4 to 6 made succesful atmospheric measurements. The Russians were trying out several pressure-limits for their first veneras.
Landing into a liquid surface (there's no water on Venus) could have been an option I guess, as 1960s planetary scientists only had an idea of the Venusian surface by Radar measurements from Earth, although these may have excluded liquid surfaces?
The early bowl capsule weighing 400 kilograms could probably float but the later lander certainly lot as those had a weight of 700 kilograms.
Landing close together is linked to the fact that the Venera missions were 'flown' in pairs and arrived in the same weekly period at the cloudy slowly rotating greenhouse world wink.gif
So the Venera pairs landed at similar longitudes as the planet rotates very slowly ( a day on Venus (244 Earthdays) is longer than a year on Venus (224 Earthdays) ).
In attchment a drawing used by scale modelers with approximate dimensions of the later Venera landers.
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JRehling
post Feb 1 2008, 07:36 PM
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Before Venera 4 (the first attempt to make a landing) it was already known that Venus had a temperature of at least the boiling point of water, so no one was concerned with vehicles floating.

Those early estimates of temperature were always low because they measured IR throughput at various levels in the atmosphere, which excluded the hot surface. But people were aware that the measurements were probably lowballing things. The Mariner 2 measurements ranged from about 400K to 600K as it scanned the disk, and this built suspicion that the surface was actually a lot hotter (the correct answer: about 730K).
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Gsnorgathon
post Feb 1 2008, 07:41 PM
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Venera 1, at least, was designed to float. Venera 4 was also, so presumably 2 and 3 were as well.
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Busmaster
post Feb 2 2008, 01:30 PM
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I remember I read in a soviet publication from the seventies that on the first Venera landers the antenna was connected to the landing capsule by bolts made of compressed sugar.
In case the capsule would immerse into the - unknown - liquid the bolts were expected to dissolve and the antenna would surface and maintain communication.
It wasn't told how long the cable was, but it was mentioned that this technique was adopted from naval warfare technology - this way floating contact mines were released.
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