International One Metre (IOM)

International One Metre

Our most popular class sailed in New Zealand and raced in over 30 countries.. The IOM is very lively and fun to sail. The hull cannot exceed 1000 mm in length and the complete boat ready to sail must exceed 4000 gms. Two channel radio equipment is required, one operates the winch the other the rudder.

The class was created in 1988 by Jan Dejmo aided by Graham Bantock and the Technical Committee of the IMYRU (predecessor of IRSA). It has continued to grow steadily since its creation.

• IOM Boat Registration
  • IOM New Hull Registration Form (Online)
  • IOM Application for Change of Ownership (Online)
  • IOM Measurement
  • Personal Sail Number
• NZLIOMNCA Contacts
  • NZRYA – IOM Class Committee
• NZLIOMNCA Pages
  • 2026 NZL IOMNCA AGM Reports
  • NZLIOMNCA Documents
  • NZLIOMNCA Management Committee
  • NZLIOMNCA Minutes 2022
  • NZLIOMNCA minutes 2023
  • IOM Class Rules and Measuring
  • IOM Sail Numbers
• IOM Ranking
  • Latest IOM Ranking
  • IOM Ranking System 2023
  • IOM Ranking Regattas 2024
  • Ranking Regattas 2023
• IOM Class Links
• Classic IOM Class
• IOM Photos
  • IOM Video & Photos
• IOM Knowledge Base
  • 3D PRINTED IOM BOATS
  • A Guide to Basic Tuning and Sail Setting on an International One Metre
  • Boatbuilding
  • Building a Plug
  • Cheap Alternative Winch
  • How Long IS One Metre
  • How to Transport My IOM Boat on a Aeroplane By Bruce Edgar
  • IOM Repair by Graham Cross
  • IOM Tuning
  • IOM Wooden Booms
  • K2 Jib Setup
  • Laser Tank Measuring
  • Launching Ramp
  • Links to RC Yacht Plans etc’
    • Choosing a Design
    • John-Spencer-Wooden IOM
    • Nighthawk IOM kitset for Cost Effective Competitive Racing