Bio-Based Composite Platform Completes Flight Tests
Eve Reverse and TRPD Consulting & Engineering tested a flax-fiber cargo platform that is more than 90% bio-based by weight.
Updated on Nov. 1, 2026 in Materials Science
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Eve Reverse and TRPD Consulting & Engineering have flight tested a bio-based composite sandwich cargo platform for a widebody aircraft raised cargo floor. The first prototype completed an intercontinental flight test campaign.
Why it matters
The structure is built from flax fiber reinforcement and a fire-retardant resin derived from agricultural waste, offering an alternative to conventional petroleum-based aerospace composites. Successful operation under in-service conditions moves the material closer to qualification for commercial aviation use.
The evidence is a manufacturer-reported instrumented flight test of a prototype, with more than 90% of the sandwich structure bio-based by weight. Results from the sensor data and the qualification timeline have not been disclosed.
The players
Eve Reverse
A Delft, Netherlands-based company that developed the bio-based composite sandwich structure with TRPD Consulting & Engineering.
TRPD Consulting & Engineering
A Utrecht, Netherlands-based engineering firm that partnered with Eve Reverse on the bio-based cargo platform.
The details
The panel uses flax fiber reinforcement, a bio-based resin, an end grain balsa core, and a thin bonded aluminum sheet on its upper surface. It was manufactured with an out-of-autoclave process, vacuum-bagged and cured in an oven, and validated through panel ultimate load testing used to generate data for finite element model simulation.
Timeline
The article describing the flight test campaign was published on November 1, 2026.
Materials Frontier
Flax-fiber and bio-based resin composites have been explored as lower-carbon alternatives to petroleum-based carbon fiber laminates in aerospace. This flight-tested cargo platform extends that research from laboratory coupons into an in-service aircraft component.
For readers following aviation or sustainable manufacturing, this development signals that bio-based structural parts may eventually appear in commercial aircraft cargo areas. Any practical effect on airline operations or maintenance will depend on the qualification results that have yet to be published.
The takeaway
Bio-based composites are moving beyond lab testing into operational aircraft structures, though more qualification work remains before such parts reach commercial service. Readers interested in sustainable materials can track future test results as they are released.
What happens next
Further testing and qualification activities are expected, though no specific dates were provided in the source extraction.
Further reading
Explore more research on Materials Science to see how bio-based composites are being developed across industries.
Source note: This article includes information reported by Compositesworld.
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