# EC12 East Coast 12-Metre model yacht (AMYA 2014 class specifications)

> What are the EC12 class dimensions?

- Category: RC boats › Sailboats (class rules)
- Kind: Modern device
- Basis: Manufacturer specifications (AMYA)
- Page: https://xemstudio.com/objects/ec12-east-coast-12-metre-class-rules/ · JSON: https://xemstudio.com/api/geometry?object=ec12-east-coast-12-metre-class-rules · Plain text: https://xemstudio.com/objects/ec12-east-coast-12-metre-class-rules/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
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## Overall (mm)

| length | width | height |
|---|---|---|
| 1092 | 283 | 1829 |

**Exact dimensions.** True size, with no printing tolerance added.

## Notes

- The EC12 is a moulded one-design model of a 12 Metre America's Cup yacht. Numbers are the AMYA 2014 class specifications.
- The beam-station table lets the deck plan be rebuilt; overall hull length is fixed by the mould and only given as 'approx. 58 in' by AMYA.
- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.

## Sizes

| dimension | value |
|---|---|
| Waterline length | 42–43 in (1067–1092 mm) |
| Draft | 7.875 in (200 mm) max |
| Max beam (35 in station) | 11.14 in (283 mm) |
| Beam stations 5…55 in | 2.48, 4.57, 6.46, 8.15, 9.65, 10.75, 11.14, 10.75, 9.61, 7.72, 5.24 in (±0.25 in) |
| Keel width | 2.1 in (53.34 mm); 2.15 in (54.61 mm) after lead |
| Hull minimum weight | 2.2 lb (1 kg) incl. deck flange |
| Rudder | 5 in (125 mm) high × 3.5 in (90 mm) wide max |
| Mast height | 72 in (1829 mm) max above deck incl. crane |
| Forestay height | 59 in (1500 mm) max above deck |
| Overall length | set by class mould (AMYA lists approx. 58 in) |

## Where the files are

- AMYA: [Class Specifications for the East Coast 12-Meter Model Yacht (2014)](https://www.ussailing.org/wp-content/uploads/2020/11/EC12-Class-Rules-Oct2014.pdf) — web — Publisher's page; dimensions are facts

## Free STEP/STL (1 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/ec12-east-coast-12-metre-class-rules/index.json

- ec12-east-coast-12-metre-class-rules-rule-envelope: [STEP](https://xemstudio.com/files/hardware/ec12-east-coast-12-metre-class-rules/ec12-east-coast-12-metre-class-rules-rule-envelope.step) · [STL](https://xemstudio.com/files/hardware/ec12-east-coast-12-metre-class-rules/ec12-east-coast-12-metre-class-rules-rule-envelope.stl) — Class-rule envelope 1092 × 283 × 1829 mm (length × maximum beam × mast height above deck); hull shape not modelled

## Questions

**What is the EC12 maximum draft?**

7.875 in (200 mm).

**How tall is the EC12 mast?**

Up to 72 in (1829 mm) above deck.

## Fits with

- [Star 45 radio sailing class (AMYA class rules 2019)](https://xemstudio.com/objects/star-45-class-rules/)