MRTP 33 Attack Craft

[TR]AHMET

New Member


THE 33 METRE Fast Patrol / Attack Craft
The advanced composite ONUK MRTP®33 Fast Patrol / Attack Craft is the extended and improved version of the 90 tonne ONUK MRTP®29 ("KAAN 29†Class) of the Turkish Coast Guard. ONUK MRTP®33 is developed as a versatile multi role platform for the increasingly tough requirements of the naval and law enforcement forces to control the littoral and the coastal waters.
Internally, the advanced machinery systems and arrangement result in a vessel with greatly enhanced operability, maintainability and accommodation standards.

PRIMARY ROLES
Mastery of the littoral can not be presumed. It does not derive directly from command of the high seas. It is an objective which requires our focused skills and resources. ONUK MRTP®33 "Fast Patrol / Attack Craft†has been designed for this purpose, capable of carrying out a wide range of littoral and coastal water law enforcement-naval duties and open sea rescue, including:
Patrol / Escort / Fast attack
Search and rescue
Anti smuggling
Pollution control
Anti terrorist protection of the coastal and offshore installations
Surveillance / Covert surveillance
Seal insertion-extraction

BACKGROUND:
The ONUK MRTP®33 Fast Patrol / Attack Craft is the extended and improved version of the 90 tonne ONUK MRTP®29 ("KAAN 29" Class) Fast Patrol Craft of the Turkish Coast Guard. A series of ten ONUK MRTP®29 are under construction, with six boats built and delivered as of july 2003.

The new member of the MRTP® (Multi Role Tactical Platform) family of boats, a concept created and developed by Kaan N.Z. Onuk; will have improved sea keeping, highly stealthy characteristics, and will be able to carry larger mission equipment/payload such as combined 30mm gun and short range SSM stabilized launcher, surface-to-surface medium range F&F fiber guided missiles, EO fire control systems and decoys.

PERFORMANCE:
Speed and seakeeping:
The ONUK MRTP®33 has been developed for a tough professional use with excellent performance qualities at both low and high speeds and strong emphasis on seakeeping. The ONUK OE-01 deep V hull, depending on engine selection and boat configuration, will enable the boat to reach speeds up to 60 knots in calm waters and up to 40 knots in Sea State 4. ONUK MRTP®33 has a soft and dry ride in adverse conditions, offering, thus, an outstanding platform for the various tasks in the brown waters and the open sea.

The MJP water jet drive system provides extreme maneuverability with high precision control and a very shallow draught, enhancing the operation in confined waters or intercepting/boarding larger ships in rough seas.


Stability: Intact-Damaged:
Commercial and Turkish / NATO naval standards have been applied to the ONUK MRTP®33 for the intact and damaged stability. ONUK MRTP®33 meets the DNV standards as well as Turkish Navy and NATO criteria for damaged stability and will remain afloat and upright with flooding in any single main compartment.

CONSTRUCTION AND COMPONENTS:
ONUK MRTP®33 is built in advanced composites to satisfy the very tough requirements of an intensive professional use together with a long service life. The benefits of the advanced composite structure are:

WEIGHT REDUCTION
* Improved Performance
* Increased Payload
* Fuel Savings

CORROSION RESISTANCE
*Longer service life
* Maintenance savings

IMPROVED
* Threat avoidance/detection
* Ballistic protection

REDUCED SIGNATURES
* Machinery vibration/acoustic
* Magnetic signature
* Heat signature

The hull and superstructure are constructed to Det Norske Veritas (DNV) HSLC Patrol R2 classification. All boats of the series are delivered with the relevant DNV Certificates.

The helm station and the interiors have been designed in line with the SAE recommendations for ergonomics to provide the crew with maximum comfort and minimum fatigue in prolonged use in heavy seas.



Machinery and propulsion
The CODAG high-speed propulsion system consists of two MTU 16V2000M90 diesels and a Honeywell TF50 gas turbine; all driving through MJP water jets. The diesels will allow 28 knots patrol speed, while the gas turbine will enable the boat to reach it's maximum speed. CODOG and all diesel propulsion systems are available on request. Depending on the mission and speed requirements, the ONUK MRTP®33 can be equipped with different components for optimum operational efficiency/price ratio.

The mechanical components are selected with the intensive professional use in mind. They offer a high level of reliability, despite the extreme performance requirements.

MISSION MODULES
ONUK MRTP®33 can be equipped with various mission modules depending on the customer requirements. Despite the size of the platform, these modules have been integrated with the modularity and reconfigurability objectives in mind. Thus, the platform can be reconfigured with different mission modules, increasing dramatically the operational flexibility and reducing the costs. The mission modules would be:
Multi weapon mounts.
- Stabilized naval turret with up to 30 mm. gun
(+ short range SSM).
- Medium range SSM (Total weights up to 5 tons).
- Short range SAM.
- 2 x 12.7 mm. heavy MG.
Multi sensor surveillance unit
(EOD with capabilty of controlling the main gun).
Search and rescue equipment
Decoys
SOF (Special Operation Forces) support/SDV (Seal Delivery Vehicle)
Pollution control

 

[TR]AHMET

New Member
  • Thread Starter Thread Starter
  • #2


DIMENSIONS
Length, deck: 33.00m
LOA (Inc platform): 35.60 m
Beam, max: 6.70 m
Draught: 1.40 m

OPERATIONAL CHARACTERISTICS
Maximum speed, at full load: 45+ knots(Up to 55 knots available depending onengine selection and configuration)
Propulsion: All Diesels: 2 x 2720 kW MTU, 16V4000M90(Other engines available)
CODAG; Diesels: 2 x 1300 kW, MTU 16V2000M90
Gas turbine: 1 x 4000 kW Honeywell TF50 (Other engines available)
Drive system Water Jets, MJP 753 DD (for all diesels)
Water Jets, 3 x MJP 650/750 (for CODAG)

Range: 650 nautical miles (at 24 knots)
Dead weight: 30.0 tonne (metric)
CAPACITIES
Fuel capacity: 20.00 m3
Fresh water: 1.50 m3
Endurance: 3 days
Crew Up to 20

 

adsH

New Member
i reckon the Iraqi navy should buy these fast patrol ships, it looks impressive, is it more stealthier, it looks stealthier but i wouldn't know. GF can you comment on the Hull design, it looks more stealthier.
 

highsea

New Member
30 Metric tonnes sounds pretty light to me for a vessel of this size? I ran a 105' x 21' Sportfisher for a year. About the same size as this boat, and I was 130 tons, with 12V2000's (2) and 6000 gallons of fuel. My top speed was 24kts with half fuel, so 28kts sounds right with 16v2000's, but I have to question the displacement. If this thing is only 30 MT, it should go way faster than 28 kts.

I don't think anyone can build a vessel of this size and have it come in at 30 MT unless the hull is an eggshell.

-CM
 

highsea

New Member
Even so, I think the 30MT number is a typo. The 29m boat is 90MT, and this new vessel is an upgraded version and 4m longer. To cut the weight by 2/3 would require a completely new design, I would say.

Also, the boat I ran was pretty high-tech also, fiberglass construction with high-tech honeycomb cores everywhere. Weight is a killer for everyone, because it translates directly to fuel consumption.

Also, there is the basic machinery weight to consider. 2 16v2000's 3 waterjet drives, and a large gas turbine! Add some fuel, and I bet you are at 30MT already, not counting the rest of the boat.

I would say 130MT is more realistic, especially considering the performance specs of 28kts under diesel power.

gf? What do you think?

-CM
 

highsea

New Member
I looked up the specs on the 29m version, and they give 2 different numbers. Clearly the "dead weight" specification is not a displacement figure.

http://www.yonca-onuk.com/mrtp_29.htm

The 29m vessel is called a 90 tonne boat, and the "dead weight" is listed at 20MT. Possibly the dead weight number is material weight, before machinery and outfitting.

Anyway, if the 29m at 20MT "dead weight" is a 90 tonne displacement, then I will guess the 33m version at 30MT "dead weight" should displace about 135MT, which sounds right to me based on the size and performance numbers.

I guess I was just confusing dead weight (whatever that means) with displacement (which is how much a boat weighs). :eek

-CM~~~tomorrow is just a pill away ;)
 

gf0012-aust

Grumpy Old Man
Staff member
Verified Defense Pro
I don't know why they have bothered with a "deadweight" rating. International convention is based on displacement as it's a universally accepted measurement.

I was guessing that this was in the 120tonne mark when compared to others I've seen.

I wish there was some consistency on spec definition, it would make life easier.

Nice neat design. The main gun doesn't assist in stealth issues, but the superstructure is relatively clean and uncluttered (forward aspect anyway)
 

Kerkenez

New Member
Dear Sirs,



I read with great interest the forum and comments at http://www.defencetalk.com/forums/viewtopic.php?t=2694 concerning our ONUK MRTP33.



We thank the very kind comments from participants that seem to be real connaisseurs. To clarify some issues I thought that it would be useful to write you.



The deadweight is an old commercial marine jargon describing the weight carrying capability (payload). This is a figure that we are not using any more. The full load displacement of the ONUK MRTP29 is 98 tonne and the ONUK MRTP33 is 120 tonne. The boats are capable to reach 50 knots and 47 knots at full displacement with 2 x 3650HP diesel engines. The hull is capable of 65 knots provided with sufficient power. The ONUK MRTP33 can also be equipped with CODAG with several power options. MJP waterjets are the standard choice for all cases.



The ONUK MRTP33 can be equipped with a battery of 4ea Harpoon Bl.2 ASM. There is actually 9ea ONUK MRTP29 and 1ea ONUK MRTP33 in service.



I would be pleased to answer all questions if we are allowed to participate to the forum.



Dr. Ekber İ.N. Onuk

Vice Chairman, Yonca-Onuk JV
 

highsea

New Member
Kerkenez,

Thank you for clearing up my confusion! This is a very attractive vessel. I have several questions, if you don't mind.

So there are 9 of the 29m versions and one 33m in service? Can you tell us who is operating them? Are they all in Turkey?

Also, I would be interested in what your estimates of the total production may be over time. Can you say if any of these may enter service in Iraq as patrol boats in the future?

Also, who is your major competition in this class, and how do they measure up when compared to your vessels?

Finally, do the MTU diesels use the DDEC control systems, and how much fuel is 20.0m3 (in liters or gallons)?

Thank you again and welcome to DT. Nice boat!

-CM
 

gf0012-aust

Grumpy Old Man
Staff member
Verified Defense Pro
Kerkenez said:
Dear Sirs,



I read with great interest the forum and comments at http://www.defencetalk.com/forums/viewtopic.php?t=2694 concerning our ONUK MRTP33.



We thank the very kind comments from participants that seem to be real connaisseurs. To clarify some issues I thought that it would be useful to write you.



The deadweight is an old commercial marine jargon describing the weight carrying capability (payload). This is a figure that we are not using any more. The full load displacement of the ONUK MRTP29 is 98 tonne and the ONUK MRTP33 is 120 tonne. The boats are capable to reach 50 knots and 47 knots at full displacement with 2 x 3650HP diesel engines. The hull is capable of 65 knots provided with sufficient power. The ONUK MRTP33 can also be equipped with CODAG with several power options. MJP waterjets are the standard choice for all cases.



The ONUK MRTP33 can be equipped with a battery of 4ea Harpoon Bl.2 ASM. There is actually 9ea ONUK MRTP29 and 1ea ONUK MRTP33 in service.



I would be pleased to answer all questions if we are allowed to participate to the forum.



Dr. Ekber İ.N. Onuk

Vice Chairman, Yonca-Onuk JV
Dr. Ekber I.N. Onuk,

Thank you for taking the time to participate in the forum discussions re this vessel. You are of course, most welcome here.

With respect to the vessel I am curious about a number of design issues. Hopefully you are able to assist with non commercially sensitive answers.

1) Have you been able to establish surge speed tests on the vessel. ie How quickly will it achieve a flank speed from a standing start in both a "dry state" and a fully "wet" state (ie fully configured with maximum fuel, weapons loadout and crew). Also, if possible what are the draught figures when combat loaded?

2) Is the hull based on a conventional high speed pursuit craft or did you redesign it completely. ie is the hull based on an existing commercial model

3) What percentage of this vessel is COTS? Was this a major consideration when designing it to reduce end costs?

4) Is the forward weapons area intended to be modular so as to enable a rapid weapons change out for different taskings?

5) How stable is the platform at higher speeds (ie, speeds above 25 knots)

It is an interesting design, and for what its worth, I am a great fan of CODAG solutions. I am also currently involved in ship building and ship maintenance projects dealing with noise and vibration issues, so I would be interested to establish whether these were significant issues when you designed a high speed hull and the impact on fittings etc...

If it's acceptable and you consider it approriate I would like to ask you some questions out side of the forum. My email address for such purposes is bounce-gf (at) aardvark (dot) net (dot) au. Please replace the bracketed words with their approp characters to create the email address. I have broken it up like this as I am trying to avoid email harvesters etc..

I am overseas at present, so I cannot answer immediately. Depending on work committments I am also unable to access web sites such as this due to local security issues, so email is the best way to contact me.

I look forward to hearing from you.

gary
 

Kerkenez

New Member
Dear Sirs,

Thanks for the interest. I will try to answer both questions:


For Highsea:

* The 9ea of ONUK MRTP29's and the first of the ONUK MRTP33 are in service at the Turkish Coast Guard. The first "Kaan29" (ONUK MRTP's are named Kaan Class by the Turkish Coast Guard Command to the memory of my son Kaan Onuk, the original designer of the MRTP's and lost in a tragic accident at the age of 23) was commissioned in 2000 and the fleet has totalled 22000 hours of operational use at the perfect satisfaction of the user.
* The shipyard can produce 5ea MRTP33 and 14-16 MRTP15/16/19 per year. We would be interested in selling these boats to any country respecting human values and determined to use them to protect the peace and the people (see our web site www.yonca-onuk.com ).
* The ONUK MRTP33 is almost matchless in the world as we do not know at the date any other vessel in the 28-45m range capable of 45+ knots and operational at SS5.
* The MTU supplied MCS5 Type2 is the heart of the VIS on the MRTP29/33's. 20 m3 is 20000 liters.


For Gary:

1. MRTP33 can accelerate from still to 45 knots in less than 45 seconds (full load condition as the Sea Acceptance Test procedure dictates). The draught is less than 1,40m
2. The hull of the MRTP33 has been designed on purpose as a patrol attack craft empasizing on platform stability, sea keeping and crew comfort. Now we developped a luxury yacht YONtech S36 on the hull of the MRTP33. The S36 will use at the maximum the speed potential of the hull (65 knot ay SS3) as the potential buyers are not limited by budgets and could go to 2ea gas turbines to power the boat.
3. COTS is the way to go for most of the designteams and the MRTP's are (besides the weapon suites) are almost fully designed around COTS material.
4. The forward weapon station is a combined 25 or 30mm gun with SS F&F + Fiber Guided small missiles. This setup would satisfy most mission requirements. The intechangeability/modularity is limited by what the turret manufacturer is offering.
5. Excellent: At 45 knots at SS3 (Beaufort 4) or 32 knot at SS+ (Beaufort 5) tea service with china cups is permitted.

Thanks again for your consideration.

Kerkenez
 

caglars

New Member
Pakistan Navy gets fast Patrol Boat from Turkey
By
Aug 18, 2004, 04:58


KARACHI: Pakistan Navy have acquired a multi role fast patrol boat from Turkey which was formally inducted in the Pakistan Navy by Chief of the Naval Staff, Admiral Shahid Karimullah in a simple and impressive ceremony held at Pakistan Navy SSG Unit PNS IQBAL.

Chief of the Naval Staff, Admiral Shahid Karimullah while addressing on the occasion said that the induction of such multi purpose fast crafts would add more strength to Pakistan Navy in general and to SSG (Navy) in particular, an ISPR news release said.

The induction of this boat will significantly enhance the Naval Operations scope and will add to the offensive punch of Pakistan Navy besides contributing towards war against terrorism and counter drug.

Commander Pakistan Fleet Vice Admiral Mohammad Haroon also addressed the ceremony and highlighted the advantages of the boat and its significance for Pakistan Navy.

The ceremony was attended by large number of Senior Pakistan Navy Officers.

URL of this article:
http://www.defencetalk.com/news/publish/article_001757.shtml
 

mysterious

New Member
How good actually are theses Turkish fast patrol boats? Like I know that they're quite effective and all but how do they fair against some others in their league?
 

gf0012-aust

Grumpy Old Man
Staff member
Verified Defense Pro
corsair7772 said:
The type 2208 Catamran Stealth FAC:

http://www.sinodefence.com/navy/littoral/2208.asp

Its got a light armament but it more than makes up for it with its size, speed and stealth.
You're making assumptions here. Platforms can only be directly compared on mission design and parameters. The 2208 is a Littorals platform, it's not designed for traditional FAC work. It's been designed to be used around the Islands between Hong Kong and the Mainland - and thats why it's shallow draft, thats why it's a wave piercing design. It's design means that it's not a fleet asset - and as such it's utility is specific.

Small wave piercers are not good high sea state platforms - as opposed to a single hull like the 33 which would be a more flexible solution.
 
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