Transport mobility

OutSail Technologies

Website

OutSail Technologies is building unlimited-range wind-powered vessels using aerospace technology. We know modern aerodyamics can make wind cheaper and more reliable than internal combustion. The effects of fossil-fuel use are degrading the ocean and destroying the planet. It’s time for modern wind power. Outsail has brought a groundbreakin

Founded 2022Origin source ↗Checked 2026-09-15

Overview

OutSail Technologies is building unlimited-range wind-powered vessels using aerospace technology.

We know modern aerodyamics can make wind cheaper and more reliable than internal combustion.

The effects of fossil-fuel use are degrading the ocean and destroying the planet. It’s time for modern wind power.

Outsail has brought a groundbreaking technology from satellites, the tape spring, to earth. Our fully autonomous, retractable wingsail allows vessels to access more wind power than ever before by providing both the aerodynamic efficiency of a wing and the perfect amount of area for the wind strength.

OutSail is backed by Y Combinator (W23), and founded by two engineers and an aerodynamics PhD who have led teams, managed products, and designed hardware for Momentus, Nuro, AEye, Tesla and SpaceX.

Company description As recorded 2026-11-08
LinkedIn
Transport mobilityHardware deviceBusinessesEnterpriseHardware sales

Founders & team

Previously OutSail Shipping

Company history As recorded 2026-11-08

Arpan Rau

Founder

I'm an aerospace engineering leader who has been cracking near-impossible problems for over a decade. Currently lead engineer @Sorcerer. I was founder and CEO of OutSail Technologies, a company dedicated to moving maritime freight economically, using wind power. We sunset the company after realizing fundamental-physics problems with our technology. Previously shipped hardware or lead teams at: SpaceX, Relativity Space, Momentus, Astra, Impossible Aerospace, and Nuro.

LinkedIn
Founder profile As recorded 2026-09-15

Bailey Da Costa

Founder

I am co-founder and Chief Engineer of OutSail Shipping, a company dedicated to economically moving maritime freight using wind power. Previously, I was a Senior Electrical Engineer at both Impossible Aerospace and Aeye. I also founded QuizMount, a social media based study website. I love building devices from the ground up as well as giving systems the love and care they deserve.

LinkedIn
Founder profile As recorded 2026-09-15

Joseph Oorebeek

Founder

Hands-on aerodynamicist with experience in supersonics, hydrodynamics, automotive and aerospace, who loves building the infrastructure of the future. I thrive on experimental fluid-dynamic studies to find novel solutions to complicated problems, while leveraging simulation tools and low fidelity analysis to back up the experiments. I am happy expanding my work to include all other aspects of engineering for a good product design. On my own time I love finding the confluence of science in baking.

LinkedIn
Founder profile As recorded 2026-09-15
3team members reported
Source-reported As recorded 2026-09-15

Founded 2022 · Source

News & product activity

Sources & observations

Y Combinator

Profile depthverified profile
Website observationwebsite unreachable
Last website check2026-11-11
Location · source statedSan Francisco, CA, USA
Pricing evidenceNo pricing page confirmed
Maturity: Not assessed · 3 of 6 areas documented

Source-based assessment · automated evidence rules

The source reports an inactive or acquired company; current product identity needs review.

Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.

Stage definitions
independent websitesource corroborationdescriptive evidenceclassified market and modelsourced peoplesourced founding year
startup.observe Directory coverage · Sources & method