Video Entering the Port of Vitória
published on 22 April 2022
Video Effects of Ciclone in the ports
published on 14 July 2023
As praticagens que atuam no litoral atingido pelo ciclone extratropical estão em estágio de alerta, avaliando constantemente os efeitos da ressaca e as condições de segurança dos canais de acesso. O objetivo é evitar acidentes e minimizar os impactos na logística e operacionalidade dos portos.
Em São Francisco do Sul (SC), o gerenciamento da situação já ultrapassa 12 horas, monitorando lanchas, navios fundeados e enviando rebocadores para o cais. Em Itajaí (SC), a preocupação inicial...
Video Manobra no Porto de Tubarão (ES)
published on 25 May 2020
Opinion What is a Tug's Bollard Pull and How İt is Calculated?
by Capt.Alpertunga Anıker - published on 24 November 2022
The Bollard Pull value, which can be interpreted as the maximum thrust that is developed for a specific amount of time by the propulsion systems of any vessel to the fullest , when it has zero speed in the forward direction, is the criterion that allows us to understand how suitable a tugboat is for a port maneuver or a towing operation.
Video Wind pure drift encounter - practical experiments for getting useful data
published on 8 July 2022
How to get information for wind & current limits to be potentially encountered by thrusters – or current? - this will be described in this movie:
- Measure Drift speed, due to beam wind with no propulsion;
- Measure drift speed using full thrusters
- Estimate wind & current limits to be potentially encountered by thrusters – or current...
- Finally there is a simple formula as Rule of Thumb: the transverse drift speed is about 7-8% of wind speed!
Video Shiphandling: Pivot Point and Transverse Thrust
published on 22 May 2022
Video Successful overtaking of another ship in a canal - Port Revel Shiphandling
published on 10 May 2020
Manoeuvring large ships at close quarters and on shallow water is one of the most difficult aspects of shiphandling because of the complex hydraulic interactions depending on the ships' speeds, on the water depth and on lateral restrictions like in canals. Training is conducted both on meeting and on overtaking ships in shallow waters. This video shows how overtaking in a canal should be conducted: come in close to the stern and then move away from the bow that will be sucked towards your...
Video GIDAS - GNSS Interference Detection & Analysis System
published on 29 April 2021
OHB Digital Solutions GmbH develops systems for monitoring the GNSS frequency bands as well as detection, classification and localization of intentional or unintentional interference sources. Many stakeholders and applications as well as critical infrastructure providers are relying on GNSS to provide their services. Since Global Navigation Satellite Systems (GNSS) are widely used in safety and value critical applications, GIDAS detects, classifies and localizes any GNSS interference...