Top-Secret Soviet Black Projects You Have Never Heard of!
- Episode aired Dec 21, 2022
- 11m
Soviet aviation engineers developed several innovative design concepts that never made it to production but a few yielded flying prototypes.Soviet aviation engineers developed several innovative design concepts that never made it to production but a few yielded flying prototypes.Soviet aviation engineers developed several innovative design concepts that never made it to production but a few yielded flying prototypes.