Velontra is an aerospace startup developing a hypersonic space plane designed for horizontal takeoff from any runway in any weather condition. The system uses an air-breathing propulsion engine to reach high altitudes before launching a second-stage rocket to deliver payloads into Low Earth Orbit.
Velontra was founded by a team of industry experts, former government senior executives, and a NASA astronaut. The organization is currently based in San Francisco and operates within the Y Combinator ecosystem.
Velontra is a leading startup in the commercial space launch sector, specifically focusing on hypersonic hardware and aerospace technology. Its unique horizontal takeoff model differentiates it from traditional vertical rocket companies by increasing launch reliability and orbital flexibility.
The vehicle takes off from a standard runway using a jet propulsion system and climbs to an altitude of over 100,000 feet at speeds of Mach 5. At this point, it launches a second-stage rocket directly into the desired Low Earth Orbit, utilizing oxygen from the air to maintain high fuel efficiency.
Velontra solves the issues of launch reliability and site dependency inherent in traditional vertical rocket launches. By enabling horizontal takeoff from any runway regardless of weather, it allows for more consistent scheduling and the ability to access any orbit directly.
Velontra's air-breathing propulsion system is up to six times more fuel-efficient than a standard rocket engine. Because it utilizes oxygen from the atmosphere during flight, it eliminates the need to carry heavy oxidizers, resulting in thousands of pounds of additional payload capacity.