Australia’s attempt to reclaim the 500m world speed sailing record.
Pilot Sean Langman and co-pilot Joe Dekock testing the Wot Rocket for the world speed sailing record attempt at Belmont, Lake Macquarie.
The Wot Rocket is half sailboat/sail plane; a nine meter long canoe style hull with two tiny foils, each about a sixth of the size of a Moth foil and a nine meter rigid sail, then a traverse beam out of an aerodynamic twin pod crew compartment. It is built entirely from carbon fiber and weighs approximately 400 kilos.The difference between this sailboat/sail plane and any that have come before it is that it will be attempting to break through the water speed barrier using a technology as yet untried on any sailing craft – supercavitation – to reduce the drag which is around 1,000 times greater in the water than in air.
Supercavitation will in effect mean Wot Rocket flies in a gas bubble created by the outward deflection of water by a specially shaped nose cone and the expansion of gases from its fin and foil design. By keeping water from contacting the surface of the body of Wot Rocket, this will significantly reduce drag and allow extremely high speeds.
The concept behind the Wot Rocket approach is to induce supercavitation at lower speeds where control can still be maintained and from there push through to the top speeds.Supercavitation means Wot Rocket should only require a fraction of the 45-50 knot winds that Albeau needed to go 0.39 knots better than the previous record. A moderate 18-20 knots should do the trick believes Langman.
Jun 08
Wot Rocket
Belmont, New South Wales, Australia 33º02’09″S 151º39’12″E
Oct 07
Lord Howe Island
Tasman Sea, Australia 31º31’64″S 159º03’58″E
Lord Howe Island is an irregularly crescent-shaped volcanic remnant in the Tasman Sea between Australia and New Zealand, 600 kilometres (370 mi) directly east of mainland Port Macquarie, and about 900 kilometres (560 mi) from Norfolk Island. The island is about 10 km long and between 2.0 km and 0.3 km wide with an area of 14.55 km2, “of which only 398 hectares is in the lowland settled area”. The first reported sighting of Lord Howe Island was on 17 February 1788 when Lieutenant Henry Lidgbird Ball, commander of the Armed Tender HMS Supply was on its way from Botany Bay to found a penal settlement on Norfolk Island. On the return journey Ball sent a party ashore on Lord Howe Island to claim it as a British possession. It subsequently became a provisioning port for the whaling industry, and was permanently settled in June 1834. When whaling declined, the worldwide export of the endemic kentia palms began in the 1880s, which remains a key component of the Island’s economy. The other continuing industry, tourism, began after World War II.The Lord Howe Island Group is recorded by UNESCO as a World Heritage Site of global natural significance. Most of the island is virtually untouched forest with many of the plants and animals found nowhere else in the world. Other natural attractions include the diversity of its landscapes, the variety of upper mantle and oceanic basalts, the world’s southernmost barrier coral reef, nesting seabirds, and its rich historical and cultural heritage. The Lord Howe Island Act of 1981 established a “Permanent Park Preserve” (covering approximately 70 per cent of the island). The surrounding waters are a protected region designated the Lord Howe Island Marine Park.