Rook, developed by Hop_Aero (YC S26), is presented as an autonomous hypersonic cargo rocket capable of delivering a 550 lb payload up to 450 miles in roughly 15 minutes. The system reportedly launches from a standard 40-foot shipping container and can land on unprepared terrain, eliminating the need for runways or fixed ground infrastructure; a demo video was shared with the announcement.
Rook is an autonomous hypersonic cargo rocket from Hop_Aero (YC S26) that carries 550 lbs (≈250 kg) up to 450 miles (~725 km) in about 15 minutes.
Introducing Rook by @Hop_Aero (YC S26): an autonomous hypersonic cargo rocket that delivers 550 lbs up to 450 miles in ~15 minutes.
It launches from a standard 40-foot shipping container and lands on unprepared surfaces—no runways or fixed infrastructure required.
Video