3 ms·
Although in this case there's no evidence that it was a useful invention.
by canjobear 4y ago
Although in this case there's no evidence that it was a useful invention.
- sidewndr46 4y agoIt's not useful for combat. It is useful for training.
- zokier 4y agoI guess it was useful for the purpose it was invented for; training, and for Russians showing off in airshows.