GUS GOSSETT / PORTFOLIO
CH 00 / 08
▸ 00 · ORIGIN
EST. 2008 · SF BAY

Builder · Sailor · Leader

Gus Gossett

I think of myself as a connector. I follow what I'm curious about to people who help me go further, then return to help the next person down the same path.

Scroll to begin
01
Chapter 01 · The Approach

I learn by doing

I'm a student at The Bay School of San Francisco (class of 2027) who invented and sold fleets of patent-pending sailboat accessories to more than seven institutions, built an E-Moto from scratch along with a custom 56V battery, and sit on the board of a full-scale sailing organization, all while finishing high school and giving back to my community.

Whether I'm inventing something new or teaching a 10-year-old to tack upwind, I show up ready to lead.

US Sailing Level 1 NASBLA Licensed First Aid / CPR
0+
Sailing institutions carry ProPlug™, from high school to collegiate
0
Major sailing publications covered ProPlug™
0
Bay School of San Francisco graduation
ProPlug
Chapter 02 · The Invention

AG Marine USA LLC

I founded AG Marine USA and developed ProPlug™, a patent-pending sailboat drain plug that solves a problem every sailor knows. From prototyping and manufacturing to marketing and fulfillment, I operate every part of this business.

www.proplug.org ↗
  • 01Patent-pending ProPlug™ design, filed personally from concept to claims
  • 02Featured in three major sailing publications
  • 03Largest manufacturer in its category in the United States
  • 04Incorporated LLC, trademarked and self-operated end to end
ProPlug Patent Pending
ProPlug™
AG Marine USA LLC · SF Bay Area
3
Press Features
LLC
Incorporated
™
Trademarked
Boat&Yacht ↗ Latitude 38 ↗ Scuttlebutt ↗
Trusted by top collegiate & high school sailing programs
BahiaEncinalFrancisHawaiiMPYCStevensonLong BahiaEncinalFrancisHawaiiMPYCStevensonLong
Chapter 03 · Built From Scratch

Nacho E-Moto

At 15, I decided I wanted to build a high-powered electric bike, so I started from a sketch, a 2x4, and a stubborn refusal to quit. Over a year I designed the frame in CAD, water-jet cut aluminum panels, machined custom sprocket adapters, and hand-built a 56V battery from 38 individually tested cells.

The finished bike hit 36 mph on a frame and battery I engineered myself, outperforming the production e-bikes that started it all.

Read The Story ↗ bikeswithmotors.com ↗
0V
Custom lithium battery, hand-built from 38 cells
0 mph
Top speed, faster than the bikes that inspired it
0
Individually tested cells in the pack
  • 01Designed and CAD-modeled the entire frame and battery enclosure
  • 02Hand-built a custom 56V lithium battery pack from 38 cells
  • 03Reached 36 mph, faster than the bikes that inspired it
  • 04Recruited local machinists, fabricators & battery experts to collaborate
04
Chapter 04 · Below The Surface

Naval Mine Clearance R&D

Hundreds of thousands of WWI and WWII naval mines still rest on seafloors across the Baltic, North Sea, and Pacific, where they threaten shipping, offshore energy, and the divers sent to clear them.

MineFish payload prototype MineFish magnetometer electronics MineFish submersible build
In Development

I'm prototyping an expendable underwater magnetic anomaly detection system: a battery-powered RM3100 magnetometer data logger on a submersible payload, designed to deploy from an autonomous surface vessel and detect the magnetic signature of ferrous mine casings.

The goal: a low-cost, attritable detection payload that makes systematic mine clearance faster and safer.

Autonomous SystemsMarine RoboticsEmbedded FirmwareRP2040Magnetometry
  • 01RM3100 magnetometer with hard-iron calibration for accurate anomaly detection
  • 02Real-time magnetic signature analysis targeting ferrous mine casings
  • 03SD card data logging via Adafruit Feather RP2040 Adalogger
  • 04Expendable, attritable payload designed for ASV deployment
Sailing Education Adventures
Chapter 05 · On The Water

Teaching the next generation

At Sailing Education Adventures in San Rafael, I lead on-water instruction as Head Instructor and help guide the organization as a Board Member. I am responsible for curriculum, student safety, and expanding access to sailing on San Francisco Bay.

www.seasailing.org ↗
  • 01Head Instructor managing day-to-day on-water operations
  • 02Board Member on the Fundraising & Education Committees
  • 03Certified to instruct and safely operate vessels on open water
  • 04Helped secure $5,000 in grant funding to expand access for underserved youth, then led the resulting class
06
Chapter 06 · Passing It On

Learning by teaching

In middle school at Marin Montessori, I designed and taught my own Creative Expression classes, building the curriculum and leading other students through real engineering projects. One ran six weeks and guided ten students through building a gasoline-powered wooden go-kart from scratch.

I brought students into the planning from day one, which kept everyone personally invested in the build.

Gus presenting to students Published Article

Why Hands-On Projects Matter: A Student's Perspective

Grounded & Soaring · Marin Montessori · 2023

"I needed to make a class that is super fun and engaging, gives engineering opportunities, and has a cool end product."

Read the article ↗
Giving Back

Board of Directors, SEA Sailing

Serve on the board of a 501(c)(3) nonprofit, helping secure $5,000 in grant funding, writing a letter of recommendation to the California Division of Boating & Waterways, and sitting on the Fundraising and Education Committees.

Sausalito Community Boating Center

Volunteered hands-on, pitching in on the physical labor of building out their facility and designing posters for their summer 2025 events.

Race Committee, St. Francis Yacht Club

Volunteered on Race Committee for the Thursday Foil Racing Series, F4 Foils Summer Wingding, Woodies Invitational, and Markset Boat Crew Training.

Jr. Rear Commodore, St. Francis Yacht Club

Represent the junior membership, help lead youth sailing initiatives, and bridge young sailors with one of the country's premier yacht clubs.

07
Chapter 07 · In The Field

Patents & collaborations

Intellectual Property
Patent Pending

Low-Profile Hydrodynamic Bailing System for Small Sailboats

ProPlug™ · AG Marine USA LLC
No. 63/926,458 · Filed Nov 27, 2025

The invention behind ProPlug™, a low-profile drain and bailing system for small sailboats. I wrote and filed the provisional application myself, from concept through the technical claims.

Provisional PatentView Filing ↗
Patent Pending

Cable-Based Underwater Positioning System with Deployable Surface Anchor Points

MineFish · Underwater Positioning R&D
No. 64/137,875 · Filed Aug 20, 2026

A system for positioning a submerged payload relative to a georeferenced coordinate frame using measured cable lengths from a floating surface platform, enabling underwater navigation without GPS below the surface.

Provisional PatentView Filing ↗
Freelance Work
Mill Valley, CA

London Chimney Services

Designed and built the full website and ran the social media presence for this local fireplace & chimney business.

City Council · 2024

Mike Koo for Mill Valley 2024

Designed and built the campaign website for Mike Koo's 2024 Mill Valley City Council run.

City Council · 2026

Jill Hoffman for City Council 2026

Designed and built the campaign website for Jill Hoffman's 2026 City Council run.

GG
Chapter 08 · The Next Chapter

Let's talk

I'm always open to conversations about entrepreneurship, sailing, engineering, or what comes next.

Emailgossettgus99@gmail.com LinkedInlinkedin.com/in/gus-gossett
© 2026 Gus Gossett · Story edition