• Length: 14.0m
• Max width: 14.0m
• Max ht: 6.0m (u/c down)
• Gross take-off wt: 55t
• Payload (10 persons): 1.2 t
• Propellant weight  28t
• Apogee (max): 340km
• Altitude at engine stop: 140km

The SF-01 will cost around €260M to develop and build three vehicles, over three years, after which it will be ready for passenger service. The important feature of the SF-01 is its liquid-fuelled rocket propulsion system, which is specially-designed for long life, high reliability and high safety.

The craft will operate routinely, like a conventional aircraft, and could fly as often as once every day. The cost of a seat will be around €120,000, to begin with, but the price will come down over the following years.