This week’s picture comes to you from the Valiant Air Command Warbird Museum in Tutusville, Florida. It’s a Klimov VK-1 jet engine — the first jet engine to see mass production in the Soviet Union:
In the post-WWII era, Stalin was paranoid about the potential for being attacked by the west, so the MiG-15 jet fighter was quickly designed (based in no small part on captured German designs). To power it, Soviet engineers attempted to reverse-engineer the Juno jet engine used in the Me-262, but failed.
Fortunately for them, the U.K. in the post war years had a rather naive Prime Minister and pro-Soviet Trade Minister. With a bit of prompting, the U.K. gave them 25 Rolls Royce Nene jet engines as a good-will gesture, along with a license to manufacture more of them. The Soviets promptly tossed the license agreement aside, and started reverse-engineering it. Their first attempt resulted in the RD-45, but it had issues in actual use. So the Soviets improved on and enlarged it, resulting in the VK-1 design you see above.