Electrical Load Simulators

Here's a current (modern day) application of an electrical load simulator:

http://www.fctec.com/fctec_systemCAPdetails.asp?ID=29

Maybe some of the electrical engineering experts in the group will be kind
enough to compare this application with (or relate it to) the Apollo One
situation, as described by LaDonna's Plugs-Out timeline for the launch-pad
fire which occurred during the simulated RCS static fire test, killing Gus
Grissom, Roger Chaffee, and Ed White.

John Maxson

"John Maxson" wrote in message
...
Here's a current (modern day) application of an electrical load simulator:

http://www.fctec.com/fctec_systemCAPdetails.asp?ID=29

Maybe some of the electrical engineering experts in the group will be kind
enough to compare this application with (or relate it to) the Apollo One
situation, as described by LaDonna's Plugs-Out timeline for the launch-pad
fire which occurred during the simulated RCS static fire test, killing Gus
Grissom, Roger Chaffee, and Ed White.

John Maxson

LaDonna,

I checked out the two electrical engineering forums in the 'sci' heirarchy.
The most active one (sci.engr.electrical.compliance) has a problem like that
of sci.space.history. It's 98% porn! However, straightforward web research
continues to indicate that Scott's scenario could well be close to the mark.

I strongly suspect that (Apollo 1) load simulators were being used to
control the magnitude of the electrical load on CM and SM internal power
sources for the Plugs-Out Test (batteries, in this case). In addition to
Scott's scenario, I don't think it's too much of a stretch to suspect that
NASA and/or North American didn't do a very good job of controlling said
magnitude on the day of the fire. That could account for some of the
anomalies recorded prior to the fire (possibly a smokescreen for the fatal
short). That's just an educated guess (without a copy of the final test
plan and the final test configuration/procedures to be implemented that
day).

I hope this is of some limited help to the Grissom cause.

John Maxson

In message , John Maxson
writes
"John Maxson" wrote in message
...
Here's a current (modern day) application of an electrical load simulator:

http://www.fctec.com/fctec_systemCAPdetails.asp?ID=29

Maybe some of the electrical engineering experts in the group will be kind
enough to compare this application with (or relate it to) the Apollo One
situation, as described by LaDonna's Plugs-Out timeline for the launch-pad
fire which occurred during the simulated RCS static fire test, killing Gus
Grissom, Roger Chaffee, and Ed White.

John Maxson

LaDonna,

I checked out the two electrical engineering forums in the 'sci' heirarchy.
The most active one (sci.engr.electrical.compliance) has a problem like that
of sci.space.history. It's 98% porn!

Are you sure you're looking in the right place?
"RF/EM field strength meter 0.2-3000 MHz, 0.2-600 V/m, Isotropic Probe"
doesn't look like porn to me (grabbing the most esoteric topic I could
see :-)

"Jonathan Silverlight" wrote
in message ...
In message , John Maxson
writes
"John Maxson" wrote in message
...
Here's a current (modern day) application of an electrical load
simulator:

http://www.fctec.com/fctec_systemCAPdetails.asp?ID=29

Maybe some of the electrical engineering experts in the group will be
kind
enough to compare this application with (or relate it to) the Apollo
One
situation, as described by LaDonna's Plugs-Out timeline for the
launch-pad
fire which occurred during the simulated RCS static fire test, killing
Gus
Grissom, Roger Chaffee, and Ed White.

John Maxson

LaDonna,

I checked out the two electrical engineering forums in the 'sci'
heirarchy.
The most active one (sci.engr.electrical.compliance) has a problem like
that
of sci.space.history. It's 98% porn!

Are you sure you're looking in the right place?

Of course, I even double-checked it, last night.

I subscribed and downloaded. Maybe you simply made a quick check of the
Google index. If so, that group certainly would not have looked very active
to you. Apparently most of those porn messages I downloaded (which account
for so much of the traffic there) don't get archived by Google.

"Jonathan Silverlight" wrote
in message ...
In message , John Maxson
writes
"John Maxson" wrote in message
...
Here's a current (modern day) application of an electrical load
simulator:

http://www.fctec.com/fctec_systemCAPdetails.asp?ID=29

Maybe some of the electrical engineering experts in the group will be
kind
enough to compare this application with (or relate it to) the Apollo
One
situation, as described by LaDonna's Plugs-Out timeline for the
launch-pad
fire which occurred during the simulated RCS static fire test, killing
Gus
Grissom, Roger Chaffee, and Ed White.

John Maxson

LaDonna,

I checked out the two electrical engineering forums in the 'sci'
heirarchy.
The most active one (sci.engr.electrical.compliance) has a problem like
that
of sci.space.history. It's 98% porn!

Are you sure you're looking in the right place?
"RF/EM field strength meter 0.2-3000 MHz, 0.2-600 V/m, Isotropic Probe"
doesn't look like porn to me (grabbing the most esoteric topic I could
see :-)

He's looking into something that's rather old, you know. Even people
with experience on Apollo are having to go back and review these and
many other questions. It's not that simple, as I've explained before.
Further, it appears with the information I've gathered thus far, that
the load simulators were just that, "load" simulators. "Why do
ANYTHING else?" Because it's somewhat important to know if the valves
are going to open BEFORE the mission is progress. And we STILL have a
schematic showing that two of twelve of those valves did not open,
while ten did. It's not labelled "RCS He2A and 2C Simulated Valve
Positions!"
LaDonna

Doesn't surprise me, given the wide range of chatter in here!

Unless I've missed posts somewhere (which is entirely possible), no one
has raised the issue that too much load was being generated by the load
simulators. The issue is the functioning (and malfunctioning) of the
valves being opened.
LaDonna

wrote in message
...
Unless I've missed posts somewhere (which is entirely possible), no one
has raised the issue that too much load was being generated by the load
simulators.

You have failed to address so many other issues, such as the names and
jurisdictions of the law enforcement personnel you spoke to about Apollo 1,
there's no reason to address any new ones.

Actually, I thought about this for a few minutes, and the issue WAS
raised once, but it was a few weeks ago. There WAS a problem with GSE
equipment. According to Jim Lovell's book (No, Hedrick, I'm not going
to climb upstairs with my broken toe and get the page number; go buy
the book and read it!) until Apollo 10 NAA somehow "missed" the fact
that the systems they designed for 28 vdc in-flight were actually
receiving 65 vdc while hooked up to GSE during testing. That was the
reason the O2 tank was pulled from 10 and ultimately found its way to
13.
LaDonna