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.

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About

I like to learn through exploration.

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.

I believe the best way to learn is to do. 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
7+
Sailing institutions carry ProPlug™ — from high schools to collegiate programs
3
Major sailing publications covered ProPlug™
2027
Bay School of San Francisco graduation
Venture

AG Marine
USA LLC

America's largest sailboat drain plug manufacturer.

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 ↗ ProPlug product photo
  • Patent-pending ProPlug™ design
  • Featured in three major sailing publications
  • Largest manufacturer in its category in the US
ProPlug logo Patent Pending
ProPlug™
www.proplug.org ↗
AG Marine USA LLC — Est. San Francisco Bay Area
#1*
US Manufacturer
*there's only one!
3
Press Features
LLC
Incorporated
™
Trademarked
Boat&Yacht ↗ Latitude 38 ↗ Scuttlebutt Sailing News ↗
@proplug_usa
Trusted by Top Collegiate & High School Sailing Programs
Bahia Encinal Francis Hawaii MPYC Stevenson Long Bahia Encinal Francis Hawaii MPYC Stevenson Long
Passion Project

Nacho
E-Moto

A self-built, high-powered electric motorcycle — designed, fabricated, and engineered from scratch.

www.bikeswithmotors.com ↗ Read The Story

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 more than a year, I designed the frame in CAD, water-jet cut aluminum body panels, machined custom sprocket adapters, hand-built a 56-volt lithium battery pack from 38 individually tested cells, and 3D-printed a custom enclosure on my school's printer — even convincing a foam manufacturer in Connecticut to ship me trademarked battery-grade material for free.

The finished bike hit 36 mph on a frame and battery I engineered myself — outperforming the production e-bikes that started it all. I recruited local fabricators, machinists, and battery experts along the way, turning a backyard idea into a genuine engineering project.

  • Designed and CAD-modeled the entire frame and battery enclosure
  • Hand-built a custom 56V lithium battery pack from 38 cells
  • Reached 36 mph — faster than the bikes that inspired it
  • Recruited local machinists, fabricators, and battery experts to collaborate
MineFish detection payload prototype MineFish magnetometer electronics MineFish submersible payload build
R&D Project

Naval Mine
Clearance Research

Developing low-cost autonomous systems to detect and neutralize WWII-era naval mines.

In Development
Autonomous Systems Marine Robotics Embedded Firmware RP2040 Magnetometry R&D Prototype

Hundreds of thousands of naval mines from World War I and II remain on seafloors across the Baltic, North Sea, and Pacific — a legacy ordnance problem that threatens commercial shipping, offshore energy infrastructure, and the workers who build and maintain it. Current clearance methods are slow, expensive, and put Navy EOD divers at risk.

I'm prototyping an expendable underwater magnetic anomaly detection system — a battery-powered RM3100 magnetometer data logger mounted on a submersible payload — designed to be deployed from an autonomous surface vessel and detect the magnetic signature of ferrous mine casings. The system includes hard-iron calibration, real-time anomaly detection, and SD card logging, built around an Adafruit Feather RP2040 Adalogger.

This is early-stage R&D prototype work. The goal is a low-cost, attritable detection payload that could make systematic mine clearance faster and safer.

  • RM3100 magnetometer with hard-iron calibration for accurate anomaly detection
  • Real-time magnetic signature analysis targeting ferrous mine casings
  • SD card data logging via Adafruit Feather RP2040 Adalogger
  • Expendable, attritable payload designed for ASV deployment

Sailing Education Adventures

501(c)(3) Nonprofit

San Rafael, CA · San Francisco Bay
Sailing Education Adventures www.seasailing.org ↗
Head Instructor
Board Member
US Sailing Level 1 Certified
NASBLA Licensed
Leadership

Teaching the
next generation.

Head Instructor + Board Member.

At Sailing Education Adventures in San Rafael, I lead on-water instruction and help guide the organization as a board member. I'm responsible for curriculum, student safety, and expanding access to sailing on San Francisco Bay.

  • Head Instructor managing day-to-day on-water operations
  • Active participant on the board's fundraising and education committees
  • Certified to instruct and safely operate vessels on open water
  • Helped secure $5,000 in grant funding to expand sailing access for underserved youth, then led the resulting class
Teaching & Writing

Learning by
teaching.

Student-led classes and published writing on hands-on education.

In middle school at Marin Montessori, I designed and taught my own Creative Expression classes — student-led courses where I built the curriculum and led other students through real engineering projects from start to finish.

One class I designed ran six weeks and guided ten students through building a gasoline-powered wooden go-kart from scratch — teaching CAD design, woodworking, power-tool safety, and how a two-stroke engine actually works. I brought students into the planning and decision-making from day one, which kept everyone personally invested in the build.

  • Designed and taught multiple student-led Creative Expression classes
  • Led ten students through a six-week from-scratch go-kart engineering build
  • Taught CAD, woodworking, power-tool safety, and backward design
Gus presenting to students Published Article

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

Grounded & Soaring · Marin Montessori School · 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 ↗
Beyond the resume

Giving back to
my community.

Building things and running a business has been the loudest part of my story — but showing up for the people around me matters just as much.

Board of Directors, SEA Sailing

Serve on the Board of Directors at Sailing Education Adventures, 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 that keep the program running for the next generation.

Sausalito Community Boating Center

Volunteered hands-on at SCBC — pitching in on the physical labor of building out their facility and designing posters for their summer 2025 events, helping a grassroots community boating program grow.

Race Committee, St. Francis Yacht Club

Volunteered on Race Committee for events including the Thursday Foil Racing Series, the F4 Foils Summer Wingding, the Woodies Invitational, and Markset Boat Crew Training — keeping competitive sailing running smoothly from the water.

Freelance Work

Professional
Collaborations.

Alongside my own ventures, I've taken on freelance work for local businesses and campaigns — building websites and running digital presence from the ground up.

London Chimney Services

Mill Valley, CA
londonchimney.com ↗

Designed and built the full website for this local fireplace and chimney business, and managed their social media presence — handling everything from visual identity to content strategy.

Web Design Social Media

Mike Koo for Mill Valley

Mill Valley City Council · 2024

Designed and built the campaign website for Mike Koo's 2024 Mill Valley City Council run — creating a clean, professional online presence to support his campaign.

Web Design Political Campaign
Skills

What I bring

Entrepreneurship

Founded and operate a manufacturing LLC from the ground up — product, legal, ops, and sales.

Leadership

Leads instructors and manages youth programs at an active sailing school on SF Bay.

Engineering & Fabrication

Designed and hand-built a custom electric motorcycle from scratch — CAD, custom fabrication, batteries, and all.

Product Development

Took ProPlug™ from concept through patent filing, prototyping, and mass production.

Communications

Earned press coverage in three major sailing publications through self-directed outreach.

Sailing Instruction

US Sailing Level 1 and NASBLA licensed — certified to instruct and operate vessels safely.

Contact

Let's talk.

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

Email gossettgus99@gmail.com LinkedIn linkedin.com/in/gus-gossett
GG