- This remarkable anti-ship weapon would run an innovative boron-powered ramjet engine that works in both air and water.
- About 10 km (6.2 miles) from its target – or indeed, whenever necessary – it would plunge into the water and become a supercavitating torpedo, reducing drag by traveling in a bubble of air to maintain speeds up to 100 m/sec (224 mph/360 km/h).
- Work remains to be done to get this new cross-media engine under reliable control given the wide range of operating conditions and boron’s tendency to act as both a solid and a fluid in a combustion chamber.
Innovative Chinese missile breathes air or water for multi-mode attacks

