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Insuring Naval Force 3: cover and premium
catamarans and multihulls · several countries
Naval Force 3: french builder of sailing catamarans and trimarans. NAMMERT insures a Naval Force 3 regardless of year built or where you bought it, liability, hull, legal expenses and personal accident cover from one house, taken out online in five minutes.
At a glance
Origin
several countries
Class
catamarans and multihulls
Typical sizes
2,4 to 20 m
Premium from
from €39 a year for liability
Worth knowing
Naval Force 3; cover, cost and conditions
Naval Force 3 is a French yard based in La Rochelle on the Atlantic coast. Founded in 1986, it concentrated on multihulls for fast cruising: Challenge trimarans, catamarans such as the Twist, Piana and Tropic, and a few monohulls aimed at racing. Epoxy runs through its construction. A Piana 30 is described as a stiff build in CP epoxy, and a Tropic 56 built in La Rochelle in 1997 combines wood and epoxy above the waterline with GRP below it. Alongside the owner versions, the yard's range also lists dedicated charter models. The series names tell the boats apart: Challenge for the trimarans, Twist, Piana and Tropic for the catamarans.
Our model records list 22 designs: 19 cruising catamarans, two beach catamarans and one trimaran, the Challenge 37. Entries begin with build year 1985 and end in 2009 with the Challenge 30, so none reaches the most recent build years. The Tropic family accounts for six designs, from the Tropic 12 at 11.96 metres to the Tropic 20 at exactly 20 metres, the longest boat on the list. Three Piana versions follow, along with the Twist and Twist 6,50 at 6.5 metres and older designs such as the Casamance 44, Corneel 26, Maldives and Prelude. At the small end sit the Enthousiaste 235 and 310 beach cats at 2.35 and 3.1 metres. Eleven designs exceed ten metres, five of them 15 metres or more.
A wood epoxy hull is light and stiff but wants dry wood under its skin. On a used Tropic or Piana, a moisture meter run along the topsides, the bridgedeck and the beam joints tells more than any brochure. Daggerboard cases and rudder bearings take high loads on a fast multihull and should be inspected for cracks and play. Cruising catamarans of this size often log long ocean miles, so the age of the standing rigging, the state of the trampoline and the condition of the sails matter as much as the hulls. The small Enthousiaste beach cats are simple boats, where the hull joints and the trailer deserve the main attention.
Questions and answers
Frequent questions
Which is the largest Naval Force 3 catamaran?
For Naval Force 3: The Tropic 20 at 20 metres,
followed by the Tropic 18 and the Technicoque CH at 18 metres each.
Five of the yard's designs in our model records measure 15 metres or more.
Does Naval Force 3 build trimarans?
Yes, for Naval Force 3 too: the Challenge range is made up of trimarans.
In our model records the Challenge 37 is listed as a trimaran, built from 1995 to 2005,
while the Challenge 30 appears there as a catamaran.
The cover that fits
catamaran insurance
Tariffs, cover and FAQ for catamaran insurance in detail.
Third-party liability
The foundation for a boat from Naval Force 3: damage to third parties, worldwide,
from €39 a year for liability.
Hull cover
Partial or full hull cover for a Naval Force 3, at replacement value with an agreed fixed value.
For the whole class of boat
For Naval Force 3: What matters for catamarans and multihulls is the same across every brand;
engine output, how a claim is settled, cruising range and theft protection.
The class page lists every point and every brand in this class, Naval Force 3 included.
Insuring catamarans and multihulls, every brand and every condition
Other builders in this class
Nautical information What counts before you cast off, papers, equipment, waters
Licence
A powerboat licence (inland or coastal) is required from 15 hp (11.03 kW).
Registration
Registration from 3 hp; for trips abroad carry the boat certificate or flag document.
Waters
Inland, coastal and abroad; plan fairways, bridge clearances, draught and tides.
Equipment
Lifesaving gear, fire extinguisher, anchor, signalling equipment and correct navigation lights.
Cruising range
The agreed cruising range is stated in the policy and can be extended at any time.
Weather
Check wind force in Beaufort and wind direction before casting off, and allow for gusts.
General guidance, not a complete account;
what governs are the rules of the waters you are on and the manual of your Naval Force 3.
Current wind force and direction for your waters are shown on the Home.
Series by Naval Force 3, build years and cover
Challenge 30 is a cabin catamaran from Naval Force 3, built from 1995 to 2009.
Challenge 37 is a cabin trimaran from Naval Force 3, built from 1995 to 2005.
Drop 26 is a cabin catamaran from Naval Force 3, built from 1995 to 2005.
Piana 30 is a cabin catamaran from Naval Force 3, built from 1990 to 2005.
Twist is a cabin catamaran from Naval Force 3, built from 1986 to 2005.
Also a cabin catamaran, built from 1990 to 1997.
Tropic 12 is a cabin catamaran from Naval Force 3, built from 1985 to 1997.
Also a cabin catamaran, built from 1985 to 1997.
Also a cabin catamaran, built from 1990 to 1997.
Also a cabin catamaran, built from 1990 to 1997.
Enthousiaste 235 is an open catamaran from Naval Force 3, built from 1986 to 1993.
Also an open catamaran, built from 1986 to 1993.
Also a cabin catamaran, built from 1985 to 1993.
Prelude is a cabin catamaran from Naval Force 3, built from 1985 to 1993.
Technicoque CH is a cabin catamaran from Naval Force 3, built from 1986 to 1993.
Tropic 12 CH is a cabin catamaran from Naval Force 3, built from 1986 to 1993.
Also a cabin catamaran, built from 1986 to 1993.
Also a cabin catamaran, built from 1985 to 1993.
Casamance 44 is a cabin catamaran from Naval Force 3, built from 1986 to 1992.
Corneel 26 is a cabin catamaran from Naval Force 3, built from 1985 to 1992.
Maldives is a cabin catamaran from Naval Force 3, built from 1985 to 1992.
New F.
P.
is a cabin catamaran from Naval Force 3, built from 1985 to 1992.
For the Challenge 30, Challenge 37,
Drop 26 by Naval Force 3 and 2 more series the market value and the replacement cost often differ
widely.
An agreed value removes the age-based scale, and the figure in the policy stands.
For the Piana 37, Tropic 12, Tropic 15 by Naval Force 3 and 14 more series there is no list price
left.
That is why we work with an agreed value: you state the figure, we agree it,
and in a total loss exactly that amount is paid, with no deduction for wear.
For the Challenge 30, Drop 26, Piana 30 by Naval Force 3 and further series:
On catamarans the bridgedeck between the hulls is the sensitive part,
and the berth belongs in the application: double width often means a mooring rather than a marina.
For the Challenge 37 by Naval Force 3 series:
On a trimaran the floats and their beams are the weak point,
on folding models the mechanism as well.
For the Enthousiaste 235, Enthousiaste 310 by Naval Force 3 series:
Open catamarans are beached and trailed, so most damage happens ashore and in transit,
not on the water.
The Naval Force 3 range in figures
These figures come from the model records we keep for Naval Force 3: boat type,
build years and length, nothing estimated.
- cabin catamaran
- 19 models, 1985 to 2009, mostly 6.5 to 18 m
- open catamaran
- 2 models, 1986 to 1993, 2.4 to 3.1 m
- cabin trimaran
- 1 model, 1995 to 2005, 11 m
Which model was built when?
What does a used Naval Force 3 cost?
We hold today’s price ranges by year for 12 models by Naval Force 3.
The table shows what boats in average condition are worth,
from the oldest to the youngest year on record.
Choose your exact model, year and condition in the calculator.
| Model | Years built | Range today |
|---|---|---|
| Casamance 44 | 1989 | €107,300 to €136,500 |
| Challenge 37 | 1998 to 2002 | €72,300 to €104,300 |
| Corneel 26 | 1988 to 1989 | €12,300 to €17,300 |
| Enthousiaste 235 | 1989 to 1990 | €600 to €900 |
| Enthousiaste 310 | 1989 to 1990 | €1,100 to €1,500 |
| New F. P. | 1988 to 1989 | €48,500 to €64,400 |
| Piana | 1988 to 1990 | €29,200 to €41,800 |
| Piana 30 | 1993 to 1994 | €25,100 to €32,400 |
| Piana 37 | 1993 to 1994 | €56,100 to €73,600 |
| Prelude | 1988 to 1990 | €40,900 to €56,600 |
| Tropic 12 CH | 1989 to 1990 | €81,300 to €105,700 |
| Twist | 1989 to 2002 | €8,300 to €16,200 |
Estimate from our boat records, October 2026.
Not a survey.
Naval Force 3 insured in five minutes.
Boat type, year built, length and value of your Naval Force 3 are all we need.
Work out the premium online or call us: +49 3375 29 12 77.
