DN Specifications
F. Runner Base & Cut (Track)
IDNIYRA OFFICIAL SPECIFICATIONS
REVISED MAY 2023
Note: Dimensions are given in inches in the English System (except as noted) and in millimeters (MM) in the metric system.
| F. Runner Base and Cut (Track) | English | Metric | ||
| Max | Min | Max | Min | |
| 1. Longitudinal distance from pivot axis of steering runner to pivot axis of aft runner: |
103 | 97 | 2616 | 2464 |
| 2. Lateral distance between aft runner edges below pivot axis: (To be measured with skipper in cockpit in sailing trim. |
95 | Opt. | 2413 | Opt. |
INTERPRETATIONS OF THE OFFICIAL SPECIFICATIONS BY THE TECHNICAL COMMITTEE
Effective May 31, 2020
F. Runner Base and Cut (Track)
3/12/2007: Measuring F.2: In order to make repeatable measurements of runner cut as intended by this Specification the following methods should be used:
- Rigging should not be tight during measurement. The skipper must be allowed to loosen the rigging as required to relieve static tension.
- Sailor should be wearing normal racing attire, including helmet, goggles, etc.
- Mainsheet must be loose.
- The runners must be allowed to move. If on the ice, the boat may be pushed to allow the runners to seek a neutral position. If using a measurement fixture, the device must allow free sideways movement of the runners.
- The skipper should be in the cockpit in normal sailing position (lying in the cockpit with his shoulders against the seatback).