First UAV Flight from Unmanned Boat

The newest aircraft carrier does not have acres of flight deck. In fact, it has no deck at all. Rather than carrying a crew of thousands, it sails without a soul on board. Yet the aircraft that it operates can fly much longer and further than anything based on a fleet leviathan. That aircraft is Aerovel’s 20kg Flexrotor, which combines VTOL and a small footprint with a Hawaii-to-West Coast range. The carrier is a 4-metre skiff equipped to launch, retrieve and service the Flexrotor automatically. In what are believed to be the first-ever flight cycles of an unmanned aircraft based... (read more)
2013-10-25 10:17:21

The search for Malaysian Airlines Flight 370

one of the greatest mysteries in civil aviation of this day
The Search for Malaysian Airlines Flight 370 – One of the Greatest Mysteries in Civil Aviation of this Day On 18 March 2014, Malaysian Airlines flight 370 disappeared from the radar. Now, more than two years later, only a few items of debris have been found originating from the lost aircraft. The presentation addresses the circumstances around the disappearance of the aircraft, the extensive analysis of numerous government and private industry institutions to determine the location of the aircraft, the underwater mapping and detailed search technology, the operations and the human elements, and shows some of the detailed underwater topography... (read more)
2016-05-19 02:45:31

Pushing Lidar to the Limits

High-resolution Bathymetric Lidar from Slow-flying Aircraft
Airborne bathymetric Lidar is an ideal tool to study underwater features in the usually rather clear waters along the coast of Australia. Due to the remoteness of many of the continent’s coastlines, this is often the only economically viable option for large-scale bathymetric mapping at high resolution. A new toolkit consisting of two airborne Lidar systems flown on a small and slow-flying research motorglider was trialled in NW Western Australia. The same technology will be used over the next three years in the context of a comprehensive study of submerged archaeological landscapes of the so-called ’Sea Country’, more than 1,000km... (read more)
2017-02-06 09:15:23

Air France Flight AF 447

A Challenge for Search and Recovery Technology
Air France flight 447, a scheduled passenger service from Rio de Janeiro (Brazil) to Paris (France), went missing on 1 June 2009 over the Atlantic Ocean with 228 people onboard. The aircraft took off from Galeão International Airport at 22:03 (UTC) on 31 May 2009 with an expected flight time of 11 hours. Contact was lost 4 hours into the flight. No distress calls were made. The recovery of aircraft parts and the ‘black-box’ recorders will be crucial to the investigation team – these tasks will challenge equipment, techniques and the ingenuity of the teams at sea.   Flight Reporting... (read more)
2009-06-26 12:00:00

'As it Was'

By a Senior Hydrographer
On 8th October 1993, with the introduction of the Laser Airborne Depth Sounder (LADS) flown in a Fokker F-27 aircraft, the Australian Hydrographic Service could claim to be among the first to use airborne Lidar systems for surveying. However, this was by no means the first time aircraft had been employed in Australia for hydrographic surveying. In 1922 an Australian port chart was prepared with aerial photographic assistance of a Royal Australian Air Force (RAAF) Fairey IIID aircraft. This resulted from an experimental aerial survey undertaken in conjunction with Lieutenant Commander C. W. Stevens' boat survey of Western Port, Victoria.... (read more)
2008-01-01 01:00:00

US Navy Prowler Recovered

Phoenix International, Inc. has completed a mission to locate and recover a US Navy EA6B aircraft from 58msw in the Persian Gulf. The aircraft was lost while conducting flight operations last summer. Under the direction of the Office of the USN Supervisor of Salvage, a Phoenix search and recovery team reported aboard USNS CATAWBA (T-ATF 168) in September 2003 to initiate shipboard installation of equipment. The team then deployed a Navy Centurion shallow-water side-scan sonar search system to methodically cover the initial search area. By mid-September a scattered debris field had been identified within the area and after comprehensive mapping... (read more)
2004-02-02 12:00:00

Hydrographic Surveying Supporting the Search for MH370

Last week, the MH370 Safety Investigation Report was presented by the Ministery of Traffic of the Malaysian Government. On 8 March 2014, the  Malaysian Airlines aircraft went missing in the Indian Ocean. Since then, a big search operation has taken place aiming to track down the fuselage in the waters, but the aircraft was never found. The search gave, however, tons of additional data of the ocean floor to the underwater mapping community. Hydro International has followed the developments with great interest and below, you can find articles and news with great building blocks of oceanographic and hydrographic data. Increased-resolution Bathymetry... (read more)
2018-07-31 10:19:19

Discovery of MH370 Part Confirms Ocean Current Models

A part from the MH370 aeroplane feared lost in the Indian Ocean on 8 March 2014 was found recently on the island of La Réunion. According to the Australian Transport Safety Bureau (ATSB) which is leading the search, this is consistent with the current underwater search area in the southern Indian Ocean where exhaustive analysis has concluded the aircraft entered the water. Drift modelling by CSIRO shows that material from the current search area could have been carried to La Réunion, among other locations. There has been more material handed over to the French police on La Réunion. However they... (read more)
2015-08-07 09:49:19

3000 DEEP Digital Side-scan Sonar

L-3 Communications Klein Associates has changed the L-3 Klein System 3000 DEEP. Recent technological advances have allowed the L-3 Klein System 3000 DEEP to provide better imaging at great ocean depths. The upgraded Klein System 3000 DEEP has specially-designed transducers for operation at 3000 metres depth (or more). The outer housing of the L-3 Klein 3000 DEEP Towfish is fabricated from titanium for optimum pressure tolerance at maximum depths, even during extended periods of operation.     The L-3 Klein 3000 DEEP is designed to transmit data to the topside using standard coaxial tow cable during normal operations. For extended... (read more)
2009-06-18 11:45:33

IceBridge Mission Prepares for Study of Arctic Glaciers

NASA's Operation IceBridge mission, the largest airborne survey ever flown of Earth's polar ice, kicks off its second year of study when NASA aircraft arrive in Greenland 22nd March. The IceBridge mission allows scientists to track changes in the extent and thickness of polar ice, which is important for understanding ice dynamics.   IceBridge began in March 2009 as a means to fill the gap in polar observations between the loss of NASA's Ice, Cloud and land Elevation Satellite, or ICESat, and the launch of ICESat-2, planned for 2015. Annual missions fly over the Arctic in March and April and... (read more)
2010-03-22 10:35:19
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