LM On The Pad Communications

Once the LM was installed into the Saturn stage for launch, how was it
accessed? I'm assuming there was a way to fuel it on the pad. For that
matter, how was telemetry transmitted from it?

Thanks...

kwebster wrote:
Once the LM was installed into the Saturn stage for launch, how was it
accessed?

Through a hatch in the SLA panels, if I remember correctly.

Mark

On Tue, 28 Nov 2006 11:21:38 -0600, kwebster wrote
(in article .com):

Once the LM was installed into the Saturn stage for launch, how was it
accessed? I'm assuming there was a way to fuel it on the pad

I don't think so - I think the hypergolics were loaded before the LM
was loaded into the SLA and stacked in the VAB.

--
Herb Schaltegger
"You can run on for a long time . . . sooner or later, God'll cut you
down." - Johnny Cash
http://www.angryherb.net

"Herb Schaltegger" wrote in
message .com...
On Tue, 28 Nov 2006 11:21:38 -0600, kwebster wrote
(in article .com):

Once the LM was installed into the Saturn stage for launch, how was it
accessed? I'm assuming there was a way to fuel it on the pad

I don't think so - I think the hypergolics were loaded before the LM
was loaded into the SLA and stacked in the VAB.

Herb -

From what I have read -- I believe that is correct.
How was the telemetry received - when the LM was stored above the Saturn IVB
?

I know from the Apollo 9 launch that Launch Control & Mission Control were
watching the helium disk pressure (high) before launch in spring 1969

gb

"Herb Schaltegger" wrote in
message .com...
On Tue, 28 Nov 2006 11:21:38 -0600, kwebster wrote
(in article .com):

Once the LM was installed into the Saturn stage for launch, how was it
accessed? I'm assuming there was a way to fuel it on the pad

I don't think so - I think the hypergolics were loaded before the LM
was loaded into the SLA and stacked in the VAB.

Not sure about fueling it, but almost positive I've seen a picture of access
to it from behind the SLA.



--
Herb Schaltegger
"You can run on for a long time . . . sooner or later, God'll cut you
down." - Johnny Cash
http://www.angryherb.net

In article .com,
kwebster wrote:
Once the LM was installed into the Saturn stage for launch, how was it
accessed? I'm assuming there was a way to fuel it on the pad...

There was a hatch in the side of the Instrument Unit, the electronics ring
that topped off the Saturn proper. That was used for IU work, including
installation of the IU flight batteries, but it also gave access to the
LM, since there wasn't any top on the IU and the LM sat in the adapter
immediately above it.

The LM was fueled on the pad, a week or so before launch (as was the CSM).
LM fueling access was via the IU hatch, with removable work platforms set
up inside (remember, the IU was about 7m in diameter).

For that matter, how was telemetry transmitted from it?

There was an umbilical cable in the adapter, connecting the LM to the IU.
The LM end of it was cut as part of the LM separation sequence.
--
spsystems.net is temporarily off the air; | Henry Spencer
mail to henry at zoo.utoronto.ca instead. |

On Nov 29, 12:13 am, (Henry Spencer) wrote:
In article .com,

kwebster wrote:
Once the LM was installed into the Saturn stage for launch, how was it
accessed? I'm assuming there was a way to fuel it on the pad...There was a hatch in the side of the Instrument Unit, the electronics ring
that topped off the Saturn proper. That was used for IU work, including
installation of the IU flight batteries, but it also gave access to the
LM, since there wasn't any top on the IU and the LM sat in the adapter
immediately above it.

The LM was fueled on the pad, a week or so before launch (as was the CSM).
LM fueling access was via the IU hatch, with removable work platforms set
up inside (remember, the IU was about 7m in diameter).

For that matter, how was telemetry transmitted from it?There was an umbilical cable in the adapter, connecting the LM to the IU.
The LM end of it was cut as part of the LM separation sequence.
--
spsystems.net is temporarily off the air; | Henry Spencer
mail to henry at zoo.utoronto.ca instead. |

Thanks.

Working in that space must have been an "interesting" experience.

kwebster wrote:
Once the LM was installed into the Saturn stage for launch, how was it
accessed? I'm assuming there was a way to fuel it on the pad. For that
matter, how was telemetry transmitted from it?

Thanks...

I think there were doors in the side of the SLA just above the IU. I
believe there was also access through the S-IVB forward arm on the
launch tower.

(Henry Spencer) writes:


For that matter, how was telemetry transmitted from it?

There was an umbilical cable in the adapter, connecting the LM to the IU.
The LM end of it was cut as part of the LM separation sequence.

Did that supply power as well?

--
A host is a host from coast to
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

In article ,
David Lesher wrote:
There was an umbilical cable in the adapter, connecting the LM to the IU.
The LM end of it was cut as part of the LM separation sequence.

Did that supply power as well?

On the ground, almost certainly (references aren't handy at the moment),
from one of the umbilical arms. Not in flight -- there was a rule that in
the flight configuration, power did not cross the launcher-spacecraft
boundary.
--
spsystems.net is temporarily off the air; | Henry Spencer
mail to henry at zoo.utoronto.ca instead. |