Two robotic arms in shuttle?

The other day when Megan (and sometimes Scooter) were controlling the
robotic arm to support the astronauts working on Hubble, the arm was on
the starboard side of the shuttle. The cameras also showed another arm
stowed on the port side.

Were there two arms on the shuttle? Or was the other port "arm"
actually a boom for the hull inspections? I thought I saw Canada
written on it too so wasn't sure.

Jessica wrote:
The other day when Megan (and sometimes Scooter) were controlling the
robotic arm to support the astronauts working on Hubble, the arm was on
the starboard side of the shuttle. The cameras also showed another arm
stowed on the port side.

Were there two arms on the shuttle? Or was the other port "arm"
actually a boom for the hull inspections? I thought I saw Canada
written on it too so wasn't sure.

Other way around.

There is one arm, on the port side.

The inspection boom is on the starboard side. It is made by the same
company that made the arm so it also has a Canada logo.

"Jessica" wrote in message
...
The other day when Megan (and sometimes Scooter) were controlling the
robotic arm to support the astronauts working on Hubble, the arm was on
the starboard side of the shuttle. The cameras also showed another arm
stowed on the port side.

Were there two arms on the shuttle? Or was the other port "arm" actually
a boom for the hull inspections? I thought I saw Canada written on it too
so wasn't sure.

There's also an arm attached to the ISS itself.

Alan Erskine wrote:
"Jessica" wrote in message
...
The other day when Megan (and sometimes Scooter) were controlling the
robotic arm to support the astronauts working on Hubble, the arm was on
the starboard side of the shuttle. The cameras also showed another arm
stowed on the port side.

Were there two arms on the shuttle? Or was the other port "arm" actually
a boom for the hull inspections? I thought I saw Canada written on it too
so wasn't sure.

There's also an arm attached to the ISS itself.


Umm, yeah, but this was not an ISS mission...

Alan Erskine wrote:


There's also an arm attached to the ISS itself.


And there are 2 arms attached to the arm operator, whether on the
shuttle or ISS.

Were there ever plans/provisions to outfit a shuttle with 2 arms ?

The boom was built in Canada too of course.
Brian

--
Brian Gaff -
Note:- In order to reduce spam, any email without 'Brian Gaff'
in the display name may be lost.
Blind user, so no pictures please!
"Jessica" wrote in message
...
The other day when Megan (and sometimes Scooter) were controlling the
robotic arm to support the astronauts working on Hubble, the arm was on
the starboard side of the shuttle. The cameras also showed another arm
stowed on the port side.

Were there two arms on the shuttle? Or was the other port "arm" actually
a boom for the hull inspections? I thought I saw Canada written on it too
so wasn't sure.

"Jorge R. Frank" wrote in message
...
There is one arm, on the port side.

The inspection boom is on the starboard side. It is made by the same
company that made the arm so it also has a Canada logo.

While true, some early shuttle drawings did show arms on both sides of the
payload bay.

Jeff
--
"Take heart amid the deepening gloom
that your dog is finally getting enough cheese" - Deteriorata - National
Lampoon

"John Doe" wrote in message
...
Alan Erskine wrote:


There's also an arm attached to the ISS itself.


And there are 2 arms attached to the arm operator, whether on the
shuttle or ISS.

Were there ever plans/provisions to outfit a shuttle with 2 arms ?

There were early drawings showing two arms. I vaguely recall that there
might have been "scarring" for the arm in the bay as well as perhaps a
switch on the RMS control panel to switch from one arm to the other. But my
memory on this is hazy.

If anyone here would know for sure just how far this got it would likely be
Jorge.

Jeff
--
"Take heart amid the deepening gloom
that your dog is finally getting enough cheese" - Deteriorata - National
Lampoon

"John Doe" wrote in message
...
Alan Erskine wrote:


There's also an arm attached to the ISS itself.


And there are 2 arms attached to the arm operator, whether on the
shuttle or ISS.

Were there ever plans/provisions to outfit a shuttle with 2 arms ?

Yes.

But I believe Endeavour was never scarred for that, but the earlier orbiters
were.

That would have been a site, two arms, really make the shuttle almost look
alive.


--
Greg Moore
Ask me about lily, an RPI based CMC.

Jeff Findley wrote:
"John Doe" wrote in message
...
Alan Erskine wrote:

There's also an arm attached to the ISS itself.

And there are 2 arms attached to the arm operator, whether on the
shuttle or ISS.

Were there ever plans/provisions to outfit a shuttle with 2 arms ?

There were early drawings showing two arms. I vaguely recall that there
might have been "scarring" for the arm in the bay as well as perhaps a
switch on the RMS control panel to switch from one arm to the other. But my
memory on this is hazy.

If anyone here would know for sure just how far this got it would likely be
Jorge.

Yes, there were scarring and switches for a starboard arm, though one
never flew (and I didn't mention it because the original question was in
the context of STS-125).

NASA made use of those provisions to install the OBSS where the
starboard arm would have gone. There were some changes. For example, the
MPM latch release switch is lever-locked for the OBSS but not for the
RMS. If you inadvertently flip the latter switch, the RMS is unberthed
but remains attached at the shoulder joint. Do the same thing to the
OBSS and it floats away into space.