Sea Trial Performance Analysis Redefined

By Don MacPherson
Monday, September 23, 2013

KND Naval Design of Cape Town, South Africa successfully completed its first in class 10M Advanced Life Support Ambulance and Rescue vessel for Africa. This vessel was designed and built entirely in Cape Town. This project used HydroComp propulsion software to analyze and examine sea trial performance. 

Naval architect Kobus Potgieter captured a USA styled 1960’s retro ambulance look-and-feel for the boat. He also used “Batmobile” oversized fenders and flowing lines which can be seen in the vessel’s coach and shape of the hull.
The KND Fast Advanced Life Support Ambulance (FALSAV) boasts a 500 HP outboard engine configuration which can be tamed to 400 HP. The vessel can reach a max speed of 40 knots and is configured to carry two patients with four crew members. She can also carry up to 16 more people for rescue operations. There are two patient benches with floating spine boards and spider harnesses, a wash basin, and toilet equipment lockers all contained within an air conditioned environment. Special attention was given to the medical needs of the patient with the fixed placement of all equipment and benches, and to have all equipment operating off 220V AC for operation (or in storage while charging). In this way, the medical workflow around the patient is uniform and efficient.
The coach has two doors port & starboard at midship and double doors at the aft of the vessel. Special attention was made for easy loading by adding a rescue door below the port access door and above the waterline. This vessel will be used to transfer patients from remote areas in the Sub-Sahara’s greater lakes region where there is a lack of medical services but a major demand.
The vessel’s final service area is East Africa, thereafter traveling 1600 km inland before reaching her final destination. Kobus Potgieter is proud of this initiative, which took over 4 months to develop, and 60 more days to build.
KND Naval Design acquired both HydroComp NavCad and SwiftTrial software in early 2012. After running a couple of projects with the assistance of HydroComp’s Technical director, Donald MacPherson, KND quickly mastered the use of the software programs and the programs have now become their primary performance assessment software. According to Mr. Potgieter, “I found SwiftTrial very useful the first time it was used on the Ambulance Boat. Sea trials have always been an important task, but we never really used the data before to analyze the performance in any real detail.”
“Using SwiftTrial, we quickly analyzed the performance and immediately picked up a big difference in the set-up of the two engines. In our case, the overload on the one engine could immediately be identified and we found out that the supplier had sent the wrong props. At WOT, it is really difficult to analyze whether the engines are really over loading or cavitating – especially if the boat is doing the anticipated speed. As we dug deeper with SwiftTrial, however, we pinpointed and corrected the problem. This was only achieved by using the SwiftTrial data and analyzing it. I can’t wait for our next design so that we can become the sea trials experts again.”
Both SwiftTrial and HydroComp NavCad offer the ability to “back-engineer” sea trial data (i.e., boat test figures) to analyze the underlying aspects of vessel performance. SwiftTrial provides an easy-to-use and inexpensive documentation and analysis utility.



(As published in the September 2013 edition of Marine News - www.marinelink.com)
 

 

Maritime Reporter June 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

ISS's Innovative Series of New Travel Apps for Cruise Industry

Inchcape Shipping Services (ISS) the world’s leading maritime services provider, has launched an innovative series of travel apps for the cruise industry in Greece,

ClassNK Holds LNG Fuel Technologies Seminars

ClassNk held LNG-Fuelled Vessel Technologies seminars in Shanghai and Singapore on 22 July and 24, July 2014, respectively. With the industry looking to adopt

Eliminating Cat Fines to Marine Diesel Engines

One can assume that P&I Clubs and shipowners would be very interested in preventing catastrophic Cat Fines damage to diesel engines. Cat Fines have been damaging

News

Mexico's Lower House Pass Energy Reform Bills

Committees in Mexico's lower house on Saturday approved laws fleshing out a landmark energy reform that seeks to drive private investment into the long-shuttered sector.

BV Group Launches Maritime Pilot Phase

Bureau Veritas Group Launched Maritime Pilot Phase for its Single Window for Foreign Trade in Togo. The ceremony took place in Lomé, under the patronage of the President of the Republic,

Clacton to Holland-on-Sea Coastal Defence Scheme

A major £36 million coastal defence scheme from Clacton Pier to Holland Haven is to get underway this week. The first phase of works will begin with demolishing

Marine Equipment

Master Marine Delivers Their First 2000HP Z Drive Towboat

Master Marine, Inc. have just delivered their first 2000HP Z Drive inland river towboat last month.  MMI has not been as active in the past years building

Wagenbourg New Crane for Oil, Gas, Energy Sector

Wagenborg Nedlift has expanded her crane fleet with a brand new 700 tonnes mobile crane. With this crane the fleet is significantly strengthened. Equipped with

Eliminating Cat Fines to Marine Diesel Engines

One can assume that P&I Clubs and shipowners would be very interested in preventing catastrophic Cat Fines damage to diesel engines. Cat Fines have been damaging

Maritime Safety

Panama's Alfonso Castillero Moves to Liberian Registry

The Liberian Registry informs that Alfonso Castillero, former Director-General of the Panama Registry, has joined their organization as Vice-President. Castillero

Bulk Grain Carrier Aground in Lake St. Claire

The Coast Guard informs it is responding to a 36,563 dwt 656-foot freighter that is hard aground in the downbound shipping channel of Lake St. Clair. Coast Guard

Costa Concordia Arrives Genoa for Demolition

Crowley Maritime Corp. subsidiary TITAN Salvage and project partner Micoperi has confirmed that the Costa Concordia – the Concordia-class cruise ship that wrecked off Giglio Island,

Vessels

Master Marine Delivers Their First 2000HP Z Drive Towboat

Master Marine, Inc. have just delivered their first 2000HP Z Drive inland river towboat last month.  MMI has not been as active in the past years building

MOL Commended with Quality Ship Awards

MOL Commended for ‘FY2013 Best Quality Ship Award’; MOL president Koichi Muto meets with captain and chief engineer, exchanging views and working to establish a more solid safe operation system.

Farstad Offshore Vessel Squadron Chartered Out

Farstad Shipping ASA reports the following charter contracts, with a total value (including options) of approximately NOK 1.75-billion, as follows: Inpex has awarded

 
 
Maritime Careers / Shipboard Positions Maritime Standards Naval Architecture Offshore Oil Pod Propulsion Port Authority Salvage Ship Electronics Ship Repair Ship Simulators
rss | archive | history | articles | privacy | terms and conditions | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2549 sec (4 req/sec)