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  ISS EVA territory (USOS vs. Russian segment)

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Author Topic:   ISS EVA territory (USOS vs. Russian segment)
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Member

Posts: 240
From: Streamwood, IL USA
Registered: Feb 2012

posted 12-27-2013 11:03 AM     Click Here to See the Profile for Headshot   Click Here to Email Headshot     Edit/Delete Message   Reply w/Quote
A silly question but... have US/ESA astronauts ever performed EVA/repairs on Russian International Space Station (ISS) modules and have Russian cosmonauts ever done the same on US/ESA ISS modules?

Robert Pearlman
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Posts: 28442
From: Houston, TX
Registered: Nov 1999

posted 12-27-2013 11:49 AM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
Yes and yes.

For example, Michael Fincke and Gennady Padalka donned Orlan spacesuits in 2004 for a series of spacewalks on the Russian segment of the space station, during which the two worked on hardware outside the Zarya FGB and Zvezda service module.

In 2007, Fyodor Yurchikhin and Clay Anderson, wearing U.S. EMU spacesuits, performed maintenance outside the U.S. Unity node and replaced components for the mobile transporter.

Headshot
Member

Posts: 240
From: Streamwood, IL USA
Registered: Feb 2012

posted 12-27-2013 12:39 PM     Click Here to See the Profile for Headshot   Click Here to Email Headshot     Edit/Delete Message   Reply w/Quote
Thanks Robert. I knew that some cosmonauts had been trained to use U.S. spacesuits and some astronauts in the use of the Orlan suits, but had forgotten that such EVAs had occurred. I assume these were both planned EVAs.

Do you know if this cross-training continues? After all, it has been six years since the last one.

I guess what I am really asking is, could U.S. astronauts aboard the ISS have used Orlan suits for these last two "emergency" EVAs had NASA not cleared the U.S. spacesuits. This assumes the Russian space agency would have agreed to let astronauts "borrow" their suits.

Robert Pearlman
Editor

Posts: 28442
From: Houston, TX
Registered: Nov 1999

posted 12-27-2013 05:43 PM     Click Here to See the Profile for Robert Pearlman   Click Here to Email Robert Pearlman     Edit/Delete Message   Reply w/Quote
I believe station astronauts and cosmonauts still undergo basic training in both types of suits, but there's a definite preference by ground controllers to use EMUs for USOS EVAs and Orlans for Russian segment outings.

There's a logistical consideration, among other concerns, with regards to how far the astronauts or cosmonauts need to traverse to reach the work site. (EMUs exit Quest, while Orlans exit Pirs or Poisk.)

All times are CT (US)

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