Vintage V-2 Rocket Engine Combustion Chamber Photos
I've scanned a number of vintage V-2 rocket engine combustion chamber photos. The V-2 was known during development as the A-4 (or A4), for "Aggregat 4", German for a group of machines, devices, or motors working together.
The first photo's caption states that it's an "R&D" combustion chamber, even though this is the type of engine which was in the final V-2 missile. Although the text of the document from which I scanned this photo does not elaborate, I know that the German rocket team was working on a flat-faced injector to replace the 18 burner cup design, but they failed to develop a stable configuration prior to the design freeze imposed on them by those in charge of actually producing the missile. Thus, in a sense this configuration is an "R&D" combustion chamber.
And here's a photo I'd not seen before. As with the photo above, the accompanying text fails to elaborate on the caption, which calls this a "production" combustion chamber. It's my guess that this is one of the engines the rocket team was testing with a flat-faced injector. It certainly lacks the burner cups, and appears to have a LOX dome at the top. There also appears to be only one alcohol inlet near the exit plane (or perhaps two, if one is located 180° around the manifold).
The shape of the bottom portion of the combustion chamber is very similar to the one above, and it retains the four film-cooling manifolds and the four film cooling pipes to supply the manifolds. However, the shape of the upper portion of the combustion chamber differs a good deal, presumably because it was not necessary to accommodate all those burner cups.