Make Your Spacecraft Refuelable With RAFTI

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The Industry-Standard Satellite Refueling Interface

RAFTI is an open license TRL 8 cooperative docking and refueling interface that replaces your existing fill and drain valve to enable on-orbit and ground fueling.

Download the RAFTI Data Sheet

Trusted By:

05
US and International Government Programs
100+
Commercial Spacecraft and Counting

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Why RAFTI?

Enables on-orbit refueling with built-in cooperative docking capability
Replaces your existing fill and drain valve, minimizing additional complexity and mass
Available under open license, ensuring flexibility
Adheres to international best practices set by CONFERS

Designed With Your Mission in Mind

Multiple inhibits against leaks, aligned with industry safety requirements
Supports both on-orbit and ground refueling
Supports a wide range of storable fuel types, spacecraft sizes, and propulsion systems
Alignment markers reduce complexity of proximity operations
Designed to last in GEO and beyond
Passive retractable covers protect sealing surfaces

Channel Partnership Program

Our Channel Partnership Program ensures RAFTI integrates seamlessly with existing propulsion systems and bus configurations.

Client Spacecraft Requirements

Fiducials

Tracking markers enable docking

Minimum of three non-collinear fiducials, tollerant of 5 degree X and Y axis misalignment
Recommended: encircling Whycon marker and 4th fiducial increases robustness against shadows

Supported Pressure

Two valve core Class Ratings of operating pressure

Low

4.48 Mpa (650 psig) TBS
High

20.68 Mpa (3000 psig) TBS

Propellant Compatibility

RAFTI has two valve cores that support the transfer of two independent fluids, ensuring compatibility with various propulsion systems. With multiple pressure variants, RAFTI is designed to be compatible with a wide range of storable propellants.

Reach out to our BD team to inquire about RAFTI integration into your mission.

Hydrazine

N₂H₄
Xenon

Xe
High-Test Peroxide

H₂O₂
Propene or Ethane and N₂O
Water

H₂O
Krypton

Kr

Close up of RAFTI refueling interface on a spacecraft with solar panels

Rapid Development, Rigorous Testing

RAFTI is designed, built, and tested to ensure the highest quality product and minimal lead times for our customers.

Pre-Launch Fueling

Use RAFTI as a fill-and-drain valve to fuel your spacecraft prior to launch with our RAFTI Ground Coupling.

Integrates with existing ground fueling infrastructure
Visual indicators allow for seamless operations
FOD mitigated with fully enclosed chassis
Flow fluid independently through each RAFTI valve core

What Could You Do With More Delta-V?

Impact

Unlock Unlimited Potential

Discover how refueling can benefit your mission and business.

Why Refuel?
Tailored Refueling Service

With your inputs, we design an optimized refueling service that maximizes the benefit to your mission.

Learn More

Built for you

Built for you

“[RAFTI] has become the common interface for satellite fueling ports.”

Karl Stolleis

(Former) Air Force Research Lab
Program Manager, Space Vehicles Directorate

"An estimated ~85% of all GEO satellites are retired not from hardware failures, but because they ran out of the fuel needed to maintain their orbital slot."

Quilty Analytics

“Leveraging the Emerging Space Economy to Meet Critical Government Needs”, 2021

"Once a satellite is launched, there is only a single tank of fuel and no opportunity for maintenance. Because of this, $100Bn worth of satellites were abandoned in the last 10 years."

Catalyst Accelerator

Spring 2021 Promotional Materials, “On-orbit Servicing, Assembly, and Manufacturing”

"Every spacecraft that’s up there right now, if you move it, you shorten its lifespan. So we are loathe to move any spacecraft out there for any reason."

Karl Stolleis

Former Space Logistics and Robotics Lead,
U.S. Air Force Research Laboratory

"...especially satellite servicing vehicles, they really need refueling."

Jonathan Goff

Founder
Altius Space Machines

"If I had the ability to refuel GSSAP regularly, do you think we would operate them like we do today? We would not. We would be zipping around the globe. We'd be trying to keep a potential adversary off balance."

Lt. Gen. John Shaw

Deputy Commander
U.S Space Force