SportboatPlaningSportboat

Longtze Premier

Longtze Yachts · Steve Thompson · 2007

Updated

The Longtze Premier is a 6.82 m planing racing yacht designed by Steve Thompson and built by Longtze Yachts, first launched in 2007. It races in Sportboat.

Longtze Premier - Steve Thompson - Longtze YachtsP 9.22 mLOA 6.82 m

Length

6.82 m

22′ 5″

Beam

2.53 m

Draft

1.75 m

Displacement

0.6 t

Sail area

37 m²

This design does not carry a Race Edge. The speeds below still come from measured boats.

On the podium

Where a Longtze Premier finishes when she goes racing.

0

Wins

0

Seconds

1

Thirds

3

Starts

Not enough races yet for a percentage — these are the counts so far. We keep collecting results, so this will fill in.

Read from 3 starts by 1 boat between 2026, counting races with six boats or more.

Recent regattas

The latest events where a Longtze Premier was on the start line, named as the organisers publish them.

  • ItalyYacht Club Domaso Circolo Velico del Lario Asd2026

Raced one we are missing?

Report a regatta

Round the buoys, or offshore

A short windward-leeward and a night at sea ask different things of a boat. Here is how this one does in each.

Round the buoys

—

Not enough data yet: 3 races of 10 NM or less carry a published distance.

Offshore & coastal

—

Not enough data yet: no races over 10 NM carry a published distance.

Who she races against

The designs a Longtze Premier actually lines up with, most often first. The bar shows how those meetings ended.

Met too few times for a figure:

Soling Od (6 meetings), Rivetto (3 meetings)

Speed at every angle

The shape of this design's speed, drawn from the measured fleet. Pick a wind and watch it stretch.

3691230°60°90°120°150°WIND13.8

Upwind VMG

4.67

37°

Beam reach

9.13

90°

Broad reach

13.04

135°

Downwind VMG

11.98

170°

Speed in knots at 20 knots of true wind. Green marks the angles that pay: the closest useful beat and the deepest run worth sailing.

Where it wins and where it pays

Every boat is judged against its own measurements — length, weight, sail area. The quicker those say it should be, the more it has to deliver just to break even. Going fast is not enough: it has to go faster than its own numbers promised.

The stronger it blows, the better this design looks. On a windy coastal course it is in its element; on a light-air windward-leeward it has to be sailed well to hold on.

Where it gains

Its best ground is on the run once it pipes up, where it goes better than its measurements say it should, and by a margin worth having. It holds that advantage cracked off as well, so the gain is not down to one leg of the course.

Where it pays

It falls short to windward once it pipes up, giving away time it never gets back. That is a hull that wants to get up and go, and needs pressure to do it.

Above the line it delivers more than promised and gains on the fleet. Below, it falls short. Move the wind: plenty of boats sit on one side in the light and the other when it blows.

True wind
Upwind-0.10 kn
Beam reach-0.02 kn
Broad reach+0.45 kn
Downwind+0.18 kn

Full width is 4.2 kn either way.

At 10 knots this design makes back more than its rating asks on the broad reach.

How fast is a Longtze Premier

Boat speed in knots, by true wind angle and wind strength.

Angle6 kn10 kn14 kn20 kn
Beat VMG3.944.584.694.67
52°5.746.376.606.75
60°5.916.636.937.17
75°6.027.027.538.01
90°5.957.258.179.13
110°6.037.398.5110.54
120°5.957.729.1211.20
135°5.557.459.9113.04
150°4.756.518.6413.84
Run VMG4.115.657.4811.98

How they are set up

The range each sail spans across the fleet.

Mainsail22 m²
Headsail13 m² – 16 m²
Gennaker56 m² – 60 m²

Most run a fixed propeller. A bowsprit is standard across the fleet. Crew weight is declared around 340 kg.

Rigging

Longtze Premier rig and sail dimensions

A Longtze Premier carries 9.22 m of mainsail hoist on a 3.14 m boom, a forestay 8.70 m above the deck and a 5.12 m bowsprit. Typical figures across the 4 boats measured under the current VPP, with the range each one spans.

Rig

Mainsail hoistP9.22 m9.18 – 9.22
Boom lengthE3.14 m3.14 – 3.16
Forestay heightIG8.70 m8.70 – 8.77
Fore triangle baseJ2.63 m2.63 – 2.68
Spinnaker hoistISP10.34 m10.34 – 10.38
BowspritTPS5.12 m5.12 – 5.14
Boom above deckBAS1.03 m0.99 – 1.03

Sails

Mainsail21.7 m²21.2 – 21.7
Headsail15.6 m²12.7 – 15.6
Gennaker59.8 m²55.8 – 59.8