SEMIRAMIS
Class CHeavy displacementCruiser/Racer

SEMIRAMIS — ISR 12

Model: Apollo 12

DROMOR YACHTSJudel/Vrolijk

Updated

SEMIRAMIS (ISR 12) is a Apollo 12 designed by Judel/Vrolijk and built by DROMOR YACHTS. She has been racing since 2021. She sails with a smaller sail plan than most Apollo 12s. Against a typical Apollo 12 she is slower upwind in light air and downwind.

SEMIRAMIS ISR 12 - Judel/Vrolijk - DROMOR YACHTS

Racing record

2

Race Edge

605.6s/mile

Rating 2026

Race Edge by wind strength: how much she delivers beyond her rating, compared with the other boats in her class.

Under 10 kn8
10–16 kn24
Over 16 kn26
Compare with another boat

Length

11.10 m

36′ 5″

Beam

3.64 m

Draft

1.95 m

Displacement

6.9 t

Sail area

70 m²

On the podium

Where SEMIRAMIS finishes when she goes racing.

Not enough data yet for her podiums: we have not found her in a race with six boats or more, measured on handicap.

Regattas

Every regatta we found with SEMIRAMIS on the start line, named as the organisers publish them.

  • IsraelShiyut Arim20211

Is there a race missing?Send us the results and we will add them here.

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How SEMIRAMIS compares with a typical Apollo 12

Her main 2026 measurements against the middle of the fleet: one boat per sail number, the latest full-crew configuration with spinnaker, Apollo 12s measured since 2025.

Above the line she is quicker than a typical Apollo 12; below, slower. Move the wind: plenty of boats sit on one side in the light and the other when it blows.

True wind
Upwind-0.09 kn
Beam reach-0.01 kn
Broad reach-0.06 kn
Downwind-0.15 kn

Full width is 0.6 kn either way.

At 10 knots she gives away time to a typical Apollo 12 on the downwind.

Speed at every angle

SEMIRAMIS in blue, a typical Apollo 12 dashed.

30°60°90°120°150°WIND

SEMIRAMIS in blue, a typical Apollo 12 dashed; green marks the closest useful beat and the deepest run worth sailing.

Other Apollo 12s racing

Every sister ship with results on TackRegatta, the most recently raced first.

More about the Apollo 12

Speed at every angle, Race Edge, the race record of the whole fleet and how the boats are set up.

Explore the design

Something wrong in SEMIRAMIS's data? A regatta, a result, her design or her sail number.

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