The Parent's Guide
Which boat is my kid sailing?
Every regatta listing names a class — C420, ILCA, Optimist — like you're supposed to already know what that means. Here's what each boat actually looks like, who sails it, and where to go for the official word.
Optimist ("Opti")
The boat almost every young sailor starts on. A small, stable, single-handed pram-bow dinghy built to be simple and nearly impossible to sink — the on-ramp to every other class on this page.
- Crew 1 (solo)
- Typical age 7–15
- Length 7 ft 9 in
ILCA (formerly "Laser")
A single-handed racing dinghy sailed worldwide and in the Olympics. One hull, three interchangeable rig sizes — ILCA 4, 6 (Radial), and 7 (Standard) — so the same boat scales from a lighter junior sailor up to an adult.
- Crew 1 (solo)
- Typical age 12+ (rig-dependent)
- Length 13 ft 10 in
i420 (International 420)
A two-person trapeze-and-spinnaker boat recognized by World Sailing — a lighter hull and tapered mast built for real speed, and a common feeder into college sailing and the 470.
- Crew 2 (skipper + trapeze crew)
- Typical age 13+
- Length 13 ft 9 in
Photo: Micky Munns, CC BY-SA 4.0, via Wikimedia Commons.
C420 (Club 420)
The two-person boat behind almost every US high school and college regatta. Same rig as the i420 — trapeze and spinnaker included — but a heavier hull and stiffer, untapered mast built to survive institutional team racing rather than to plane fastest.
- Crew 2 (skipper + trapeze crew)
- Typical age 13+
- Length 13 ft 9 in
Sunfish
A simple, lateen-rigged single-hander that's been a summer-camp and lake-club staple for generations. Less common in fleet racing than the classes above, but a huge, affordable used-boat market makes it a common first family boat.
- Crew 1 (sometimes 2, casually)
- Typical age 8+
- Length 13 ft 9 in
Photo (Super Sunfish, a stretched sibling of the standard Sunfish): William Dilgard, CC BY-SA 3.0, via Wikimedia Commons.
