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

Technology

Schlumberger Announces Q1 Results

Schlumberger Limited (NYSE:SLB) today reported first-quarter 2014 revenue from continuing operations of $11.24 billion versus $11.91 billion in the fourth quarter of 2013, and $10.

RS at SEA JAPAN 2014

Russian Maritime Register of Shipping (RS) was the only Russian company to take part in SEA JAPAN 2014 exhibition and conference – one of the major exhibitions of the maritime industry.

When Will Deep Sea Mining Commence? The Robot is Ready

The world's first deep sea mining robot sits idle on a British factory floor, waiting to claw up high grade copper and gold from the seabed off Papua New Guinea

News

Saudi SABIC Q1 Profit Falls 1.8 % On Product Prices

Profit at Saudi Basic Industries Corp (SABIC), one of the world's biggest petrochemical firms, slipped 1.8 percent in the first quarter of this year as lower

Korean Ferry Captain's Detention Could Extend As Death Toll Mounts

South Korean prosecutors investigating a ferry disaster said on Sunday they would seek to extend the detention of the ship's captain and two other crew by 10

First Bodies Recoved From Sunken Ferry

South Korean divers retrieved three bodies from inside a sunken ferry overnight, officials said on Sunday, the first time they have been able to gain entry to the passenger section of the ship.

Marine Equipment

Schlumberger Announces Q1 Results

Schlumberger Limited (NYSE:SLB) today reported first-quarter 2014 revenue from continuing operations of $11.24 billion versus $11.91 billion in the fourth quarter of 2013, and $10.

RS at SEA JAPAN 2014

Russian Maritime Register of Shipping (RS) was the only Russian company to take part in SEA JAPAN 2014 exhibition and conference – one of the major exhibitions of the maritime industry.

Van Oord acquires 100% control of Dravo

Van Oord has acquired all shares of its Spanish subsidiary Dravo S.A.  Dravo S.A. has been owned, since 1987, by Van Oord (50%) and the Spanish company Dragados S.

Maritime Safety

Coast Guard tactical air squadron holds change of command ceremony

Capt. Kevin P. Gavin relieved Capt. Donna L. Cottrell as commanding officer of Coast Guard Helicopter Interdiction Tactical Squadron Jacksonville during a change of command ceremony at HITRON Friday.

RS at SEA JAPAN 2014

Russian Maritime Register of Shipping (RS) was the only Russian company to take part in SEA JAPAN 2014 exhibition and conference – one of the major exhibitions of the maritime industry.

Bodies found trapped in S Korean ferry

Divers searching for survivors of a capsized South Korean ferry saw three bodies floating through a window of a passenger cabin on Saturday but were unable to retrieve them,

Vessels

Bodies found trapped in S Korean ferry

Divers searching for survivors of a capsized South Korean ferry saw three bodies floating through a window of a passenger cabin on Saturday but were unable to retrieve them,

Havyard to Build Hybrid Battery Arctic PSV

Norway's Havyard says it has signed a contract for the construction of a Havyard 833 WE ICE platform supply vessel with Fafnir Offshore HF. The vessel is to be

Rotterdam port's throughput almost stable

The Port of Rotterdam’s throughput in the first quarter of 2014, at 109 million tonnes, was 0.2% below the level for the corresponding period last year.Split up by goods type,

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Naval Architecture Offshore Oil Pipelines Ship Repair Ship Simulators Shipbuilding / Vessel Construction Winch
rss | archive | history | articles | privacy | 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: 0.1880 sec (5 req/sec)