Sailing tools, built by a sailor.

Critical Mass Racing

Race-performance analysis for a J/80 campaign, revealing where speed is gained and lost across wind conditions, maneuvers, and points of sail.

• Conclusions driven by instrument data—not guesswork
• Practical coaching insights for the biggest performance gains
• Open-source code and Docker images on GitHub

Max VMG Racing

MAX VMG Racing uses interactive simulations and performance models to help sailors understand how wind, sailing angles, boat speed, and maneuvers affect race performance. Choose a boat and a wind challenge, then race a Ghost Boat that follows the same performance rules while sailing the optimal course — experiment with your decisions to see where distance is gained or lost and build a more intuitive feel for VMG.

Time to Win

Time To Win is an iOS app for sailboat racing that calculates corrected finish times between two boats under the major handicap rating systems.

• PHRF (Performance Handicap Racing Fleet)
• IRC
• ORC (Offshore Racing Congress), both Time-on-Time and Time-on-Distance

B&G Triton 2 Mast Mount

A 3D-printable instrument mast mount — fits any mast, no screw holes, easy install.

• STL, GCode, and FlashPrint files included
• Small footprint, inexpensive to print

J/80 Miniature Hull Model

A 110mm 3D-printable J/80 hull, reconstructed from 2D reference drawings by an image-processing and voxel-modeling pipeline — not hand-modeled in CAD.

• Digitizes profile & deck-plan drawings into curve data
• Voxel model + marching cubes → clean, watertight STL
• Rigging pilot holes for forestay, backstays, winches, and blocks