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00:17:13
00:21:11
00:17:13

Transcription: [00:17:13]
{SPEAKER name="KARL HEIMBURG"}
—the plant where it was, put together.

[00:17:16]
{SPEAKER name="MICHAEL NEUFELD"}
Yeah of course I think, when you get down towards the end of the war,
then you find that so many things have been put underground at Mittelwerk, that,
yeah, increasingly operations that were once at somebody's factory, they've
picked up the whole, they picked up the labor force and the mach- the tools, and
they shipped them off, and put them underground. And they joined-- So that,—

[00:17:37]
{SPEAKER name="MICHAEL NEUFELD"}
I think probably in the last part of the war at Lehesten,
they were testing engines that were made right there at Mittelwerk.
Probably. At least-parts of them, not all parts.

[00:17:47]
{SPEAKER name="KARL HEIMBURG"}
I'm not sure if combustion chambers were manufactured in the Mittelwerk,
I don't believe so. I believe we still got them out of the east, you know the
west coast of Germany was badly damaged by air attacks; the east side
of Germany was not so bad off.

[00:18:05]
{SPEAKER name="MICHAEL NEUFELD"}
Mhm. Yeah. Silesia — was relatively, Silesia was relatively protected from air raids.

{SPEAKER name="KARL HEIMBURG"}
Yeah, right, right.

[00:18:15]
{SPEAKER name="MICHAEL NEUFELD"}
Umm. So you- As you were doing it in the beginning, the combustion chambers with
injectors would be shipped to you, you would calibrate them and then send them to
Mittelwerk for integration into vehicles?

{SPEAKER name="KARL HEIMBURG"}
Right, right.

[00:18:28]
{SPEAKER name="MICHAEL NEUFELD"}
Does that mean, that, as you were saying that they had to be individually tested and calibrated-
Does that mean that for each engine there would be a specified performance — whatever attached
to it? So adjustments would have to be made in fitting it into the final missile?

[00:18:44]
{SPEAKER name="KARL HEIMBURG"}
Yes, yes. Yes, you know, with the pumps, this was exactly the same. The pumps were calibrated too. And you took them - when you had a higher pressure loss in the combustion chamber - you took a pump which was a little bit more powerful, together with that one.

{SPEAKER name="MICHAEL NEUFELD"}
Mhm.

[00:19:03]
{SPEAKER name="MICHAEL NEUFELD"}
So you tried to match them?

{SPEAKER name="KARL HEIMBURG"}
Yep.

[00:19:05]
{SPEAKER name="MICHAEL NEUFELD"}
And you were getting turbo pumps shipped from companies — to Peenemünde at the beginning?

{SPEAKER name="KARL HEIMBURG"}
Right. Yeah.

{SPEAKER name="MICHAEL NEUFELD"}
And you also had to run longships there?

[00:19:19]
{SPEAKER name="KARL HEIMBURG"}
That's what I had mentioned. When we put them together in a vehicle, we calibrated in
the vehicle the pumps together with the combustion chamber. That is all. You had the whole
power plant there.

[00:19:35]
{SPEAKER name="KARL HEIMBURG"}
And there we learned enough that we could say— All right, if the pump has this
calibration characteristic, you put it together with such a combustion chamber. If it has such
a characteristic, you put it with such and together. Because later on we didn't test the
whole vehicle anymore. You know, we tested only the pumps and the combustion chamber,
separately.

[00:20:01]
{SPEAKER name="MICHAEL NEUFELD"}
Did you, uh, continue to do that, in any large numbers after you had Lehesten and Schlier?
I mean- Did you continue to get large shipments of pumps of combustion chambers, that had to
do part of the workload of that stuff at Peenemünde, or was that pretty much gone?

[00:20:24]
{SPEAKER name="KARL HEIMBURG"}
No. As I mentioned, after we had run let's say 100 - I take it out of the air the figure right now - 100 different pumps, and combustion chambers, together in this calibration test stand, so that you had now, your combustion chamber calibration and you had 100 different pumps,

[00:20:50]
you could say— OK, this is the characteristic now of the combustion chamber, therefore you take such a pump without testing them- together. You tested them separately and you could THEN coordinate it according to the results of your calibration test of the pump.


Transcription Notes:
Wasn't quite able to determine what Karl Heimberg said towards the end of the excerpt, along with being unable to determine what Michael Neufeld said regarding a location. **GOT IT! I also omitted a few stumbles at certain points, as I wasn't quite sure if they were necessary to keep. ** I took out some "Mmhmm's", "

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