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Rapidly Attachable Fluid Transfer Interface 
Summary
Rapidly Attachable Fluid Transfer Interface (RAFTI) is a standard interface developed by Orbit Fab for transferring fluids, e.g., propellants, in space.[1] It has been defined by a group of 30 companies.
The interface specification has high and low pressure variants, both for operation between -40 °C and 120 °C.[2]
- Low pressure : for MMH, UDMH, Water, H2O2, Methanol, Kerosene, Green Monoprops, isopropyl alcohol, HFE, N2O. (fluids)
- High pressure : for Nitrogen, Helium, Xenon, Krypton. (gases)
History - timeline edit
2020: A first implementation is planned to be tested in space in 2021 as part of a prototype fuel depot.[1][3]
A free flying orbital demo was launched in June 2021 to test transfers of high-test peroxide.[4]
In 2024, Orbit Fab announced production ramp up and prices, and that three SpaceForce Tetra 5 satellites would be launched in 2025 with RAFTI interfaces for a refuelling demo in geostationary orbit.[5]
See also edit
- Robotic Refueling Mission NASA tests on the ISS (including cryogenic)
References edit
- ^ a b Messier, Douglas (November 18, 2020). "Orbit Fab to Launch Orbital Fuel Depot Next Year – Parabolic Arc". parabolicarc.com. Retrieved 2020-11-26.
- ^ RAFTI summary
- ^ Orbit Fab to Launch Orbital Fuel Depot Next Year has image
- ^ There's Now a Gas Station… In Space! Sept 2021
- ^ Orbit Fab reveals price tag for its satellite refueling ports March 2024