Synthesised iso-paraffins (SIP)
Sustainable aviation fuel made from sugars by fermentation to farnesene and hydrogenation. Approved at a 10% blend; little is produced.
The fuel
- Class
- Sustainable aviation fuel
- Specification
- ASTM D7566 Annex A3
- Status
- approved; little made
- Blend limit
- 10% with fossil jet fuel
—
aircraft on the register burn it
no engine series on the register is built for it
—
no airport on record sells it
by the FAA's file, the news and the sellers' sites
Connections how this fuel links to the rest of the register
Other sustainable aviation fuel
The whole map of how records connect · these connections as data: /graph/fuel/sip.json.
Sources: FAA Civil Aviation Registry (November 2, 2026) for the engines and aircraft; the FAA airport master file for fuel sold; the FAA's supplemental type certificate listings for the approvals; SAFxCHANGE's record for the plants, deals and the airports named in the news; the sellers' own websites where named. Specifications as published by ASTM International and the U.S. military. The fuel makers' own pages say where their fuel is sold this month; this page is as current as those records.