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Insuring Ostac Yachts: cover and premium

catamarans and multihulls · several countries

Ostac Yachts: australian builder of multihulls. NAMMERT insures a Ostac Yachts 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.

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At a glance

Origin

several countries

Class

catamarans and multihulls

Typical sizes

6 to 11 m

Premium from

from €39 a year for liability

Worth knowing

Ostac Yachts; cover, cost and conditions

Ostac is an Australian multihull builder. Its name is tied to the trimarans of Ian Farrier: the F-31 was built by Ostac in Australia while Corsair Marine built it in California. Ostac also produced catamarans, among them the Parallax 11 to a design by Robin Chamberlain. For its time the construction was ambitious: biaxial and triaxial cloth vacuum bagged over a foam core and laminated with vinylester resin. The result is a light structure, and that is what marks the boats out: slim hulls carrying little weight for their size.

Our model records list four designs. Three are entered as sailing catamarans, the Parallax 9, the Parallax 11 and the Farrier F 31, and one as a trimaran, the Tramp. The F 31 deserves a second look: the source describes it as a trimaran, while our records file it as a catamaran. The Parallax 11 is the largest at eleven metres and runs from 1983 to 1997. The Parallax 9 at nine metres and the F 31 at 9.4 metres start in 1989, and the Tramp, the smallest at 5.95 metres, appears from 1990. All lines end in 1997; none reaches the recent build years.

Foam sandwich hulls are light and stiff, but a used one needs a careful survey. Tap the hulls and decks for delamination, and look for soft spots near fittings, crossbeams and the bows, where impacts happen. On catamarans, the bridgedeck and beam attachments carry high loads and should show no cracking. On a trimaran, check the folding or beam system and the float connections. Rudders and daggerboards on light multihulls suffer in groundings, so inspect their cases. A boat from the nineties with good paperwork is a strong starting point.

Questions and answers

Frequent questions

Is the Farrier F 31 a catamaran or a trimaran?

For Ostac Yachts: A trimaran.

The source describes the F-31 as a trimaran built by Ostac in Australia.

Our model records list it as a sailing catamaran, entered from 1989 to 1997 at 9.4 metres.

Which is the largest Ostac?

For Ostac Yachts: The Parallax 11 at eleven metres,

a catamaran designed by Robin Chamberlain and listed from 1983 to 1997.

The smallest is the Tramp at 5.95 metres.

The cover that fits

For Ostac Yachts: 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, Ostac Yachts included.

Insuring catamarans and multihulls, every brand and every condition

Other builders in this class

Bali Catana Corsair Dart Dragonfly Excess Fountaine Pajot Hobie Cat Lagoon Leopard McConaghy Nacra Nautitech Neel Outremer Privilège Seawind Topcat

Directory of all makes from A to Z

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 Ostac Yachts.

Current wind force and direction for your waters are shown on the Home.

Series by Ostac Yachts, build years and cover

Farrier F 31

Farrier F 31 is a cabin catamaran from Ostac Yachts, built from 1989 to 1997.

Parallax 9

Parallax 9 is a cabin catamaran from Ostac Yachts, built from 1989 to 1997.

Parallax 11

Also a cabin catamaran, built from 1983 to 1997.

Tramp

Tramp is a cabin trimaran from Ostac Yachts, built from 1990 to 1997.

What this means for the cover

For the Farrier F 31, Parallax 9,

Parallax 11 by Ostac Yachts and 1 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 Farrier F 31, Parallax 9, Parallax 11 by Ostac Yachts 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 Tramp by Ostac Yachts series: On a trimaran the floats and their beams are the weak point,

on folding models the mechanism as well.

All series at a glance

The Ostac Yachts range in figures

These figures come from the model records we keep for Ostac Yachts: boat type,

build years and length, nothing estimated.

cabin catamaran: 3 models, 1983 to 1997, 9 to 11 m
cabin trimaran: 1 model, 1990 to 1997, 6 m

Which model was built when?

Sailing boat Motorboat RIBEach bar is one Ostac Yachts model, running from its first to its last year of build. The colour shows the type of boat.

What does a used Ostac Yachts cost?

We hold today’s price ranges by year for 4 models by Ostac Yachts.

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
Farrier F 31	1992 to 1994	€41,200 to €55,400
Parallax 11	1993 to 1994	€66,300 to €86,700
Parallax 9	1992 to 1994	€31,300 to €41,300
Tramp	1993 to 1994	€11,900 to €15,600