Author Topic: Neutral buoyancy in Soviet Union  (Read 526 times)

Offline Nicolas PILLET

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Neutral buoyancy in Soviet Union
« on: 02/27/2018 05:46 PM »
While doing researches about Orlan history, I am suddenly realizing that this spacesuit, when it was still intended for lunar orbital flight, has been tested in a swimming pool. The information is from the official Zvezda book "Космические скафандры России" (translated in English by Springer&Praxis).

But this information raises a question. According by this article written by.... me (:D), the idea of neutral buoyancy for training purpose was first given by Aleksey Leonov himself in 1966. Then, this idea was completely forgotten in USSR. According to his memories, general Kamanin was convinced by neutral buoyancy only in 1970, and the construction of the swimming pool began only in 1974.

https://www.kosmonavtika.com/basesorga/tspk/des/hydrolab/hydrolab.html

For the Soyuz-4/5 mission in 1969, Khrunov and Yeliseev had only zero-G flights in Tu-104AK to train themselves for their EVA.

BUT : if Plant 918 (NPP Zvezda) had a swimming pool already in 1968 for Orlan testing, why the idea didn't came to TsPK ????
Nicolas PILLET
Kosmonavtika : The French site on Russian Space

Offline zubenelgenubi

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Re: Neutral buoyancy in Soviet Union
« Reply #1 on: 02/27/2018 05:59 PM »
Also, the addition of neutral buoyancy training helped solve the Gemini EVA issues (Gemini 12, November 1966).  And, those successes were elaborated and published in open-source media (correct?).

Wouldn't knowledge of American success spur Soviet development of the same training opportunities?
« Last Edit: 02/27/2018 05:59 PM by zubenelgenubi »
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Offline ddunham

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Re: Neutral buoyancy in Soviet Union
« Reply #2 on: 02/27/2018 07:32 PM »
Forgotten, or postponed?  The article seems to suggest that requests for such a facility were made 3 times prior to 1970, but denied. So rather than an idea that required (re)discovery, it sounds like an idea that was not valued enough to commence.

If it's the problem of convincing those in charge of the budget of the utility for a large underwater facility to practice procedures, I don't know that testing the suit in a small pool was going to help that along very much. 

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