| |
|
| Functions of NGC ‘Next Generation Corvettes’ | capable of
Offensive SSM Attack
Anti Submarine Warfare Operations
Local Naval Defence, MIO and VBSS Operations.
The ships should have Low Radar, Acoustic, Magnetic, Visual and Infra Red Signatures and adequate NCO and
communication capabilities.
|
| Dimensions |
Length -= 120m.
Beam - Commensurate with the length, draft and displacement of the ship.
|
| Displacement | As per Design
|
| Draught | As per Design
|
| Hull Form | Single hull construction based on proven hull form or supported by adequate model testing for resistance, propulsions, manoeuvring and seakeeping.
|
| Complement | The ship should have a complement of 21 officers and approx. 137 sailors.
|
| Range & Speed |
The ship should have a range of not less than 4000nm at sustained economical speed.
Max speed of the ships should not be less than 27kn.
The max sustained speed should not be less than 25kn.
The ship should also have the ability to operate economically at low speeds for sustained durations. Restriction in engine hours
should not be an overbearing consideration, to enable flexibility in tasking.
|
| Endurance. |
4000 NM at sustained economical speed, 1200 Nm at 25 Kn and sustain at sea for not less than 14 days (with 25% reserve fuel) without
OTR at economical speed.
The ship should also have the ability to undertake astern and/or abeam fuelling from Tanker/ Capital ships to increase endurance.
|
| Planned Ship Life | Not less than 25 Years
|
| Propulsion | The propulsion system should be able to provide the requisite power to weight ratio required for
the ship. The propulsion system would also cater for greater endurance and operations in low speed regimes during LIMO and EEZ patrols. The main engine should be capable for achieving the rated speed of 85% MCR of the engine. The propulsion system should be suitably designed to meet the stealth requirement of the ship. The ships MCR should have automated and remote monitoring indication and control capability for all machinery including PGD.
|
| Auxiliaries | Auxiliary systems like AC, refrigeration and ventilation, fire main, salvage, STP, ballast and other relevant auxiliary systems as per class requirements are considered necessary for meeting operational requirements to be provided. Conformity of equipment fit to latest IMO/MARPOL/MEPC regulations in force, wherever applicable.
|
| IPMS | The Integrated Platform Management System (IPMS) shall be dual redundant Gigabit Ethernet Network, distributed architecture system covering the ship machinery system. The purpose of the integrated system shall be to provide control and monitoring of the propulsion machinery and Damage control (NBCD) machinery and systems through corresponding sub-systems.
|
| Power Generation and Distribution |
An independent APMS system with switchboard should be provided to cater for 100% reserve power and redundancy vis-a-vis maximum electrical load envisaged at any operating regimes of the ship assuming an ideal loading of generators to 80% of the nominal ratings. Growth margin is to be catered as per IN policy, subject to a minimum of 10% of the estimate value. The APMS system is to be suitably interfaced with IPMS.
|
| Weapons |
SSM Complex. The ship should carry a minimum of 08 SSMs.
SAM System. The ship should be fitted with a SAM for providing credible near 360 degree AMD coverage to the ship. It should be able to engage the sea skimming missiles, flying 3-5 m above sea level, upto max speed of 3 Mach.
MR Gun System. A gun with a stealth feature having range not less than 15 km and capability to carry out SU, AA and AMD engagements should be fitted. It should have the facility to be remotely operated using FCRs as well as EO (Electrical-Optical) sight.
CIWS. The CIWS should both radar and EO (Electro-Optically) guided to double up as LIMO weapons. The placement of CIWS should be such that it provides near 360 degree AMD protection without requirement of course alteration.
Chaff. The ship should be fitted with suitable chaff system to provide credible passive ECM capability against incoming missiles. It should be capable of firing chaff in all round direction in distraction, seduction, and centroid modes.
|
| LIMO Weapons | The ship should be fitted
with the following weapons for LIMO:-
Two SRCG with suitable system.
Acoustic Warning Device.
High Power search lights with remote activation and Control.
|
| ASW Weapons/ Sensors | The following
should be fitted onboard:-
Active Towed Array Sonar.
Underwater Telephone.
2 X Light Weight Torpedo Launcher (03 Tubes per launcher) with FCS.
Torpedo Decoy with FCS.
Torpedo for Helo. The shall be capable for storing light weight torpedoes for fitment on Helicopter.
Conductivity Temperature and Depth (CTD). The ship shall be fitted with CTD to measure bathy profile.
Bow Mounted Sonar - One
|
| Sensors |
Passive Detection System. An Infra Red Search and Track (IRST) system should be fitted onboard. The system should be integrated with
all gun mounting and should have the facility for interfacing with CMS.
Radars. The ship should be fitted with combination of one surface and air surveillance radar each for early warning and FCRs for target indication or one Multi-Function Surveillance and Threat Alert Radar for early warning and target indication.
Combat Management System. The ship is to be fitted with the Combat Management System (CMS) for network centric operations and quick response for operations at sea. The ship should also have a Ship Data Network (SDN), which should form the backbone for networking all weapons, sensors, SHHD equipment and integrating the CMS to enable the exchange of data between the ship borne systems. Networks like IPMS, IBS and ACCS are to be interfaced to SDN via suitable gateways, if required.
|
| Aviation Facilities | The ship should be fully capable to carry, stow and operate ALH/NUH and alternately a rotary UAV.
|
| Communication and EW Outfit |
The ship should have an Advance Composite
Communication Suite (ACCS) integrating all
communication equipments in all modes (Voice,
Video and IP based data) to the communication
data bus. The number of aerial should be limited
by using the concept of “common aerial working”
or similar concept. The ACCS should be fully
compatible with the data link equipment. The
communication and EW equipment outfit is to be
as follows:
Sufficient V/UHF sets.
SATCOM (Fixed and portable) equipment on indigenous satellite as well as INMARSAT.
VLF (for reception of VLF broadcast and plot transfer) equipment.
HF sets for long distance to way communication i.e receive HF digital broadcast and transmitting high speed digital messages and plots.
Equipment which are part of IMO regulations.
An EW suite consisting of an ESM system capable of detaching emitters in the frequency range of 0.175 GHz 240 GHZ and ECM system which can be used independently or in conjunction with chaff.
COMINT System with direction finding in the frequency range of 30 MHz to 3 GHz, capable of detecting various types of modern radar and communication equipments waveforms.
|
| Sea Worthiness | The ship should be capable of the
following:-
Operational seaworthiness upto 4.
Survivability upto Sea State 9.
Helo Ops up to Sea State 4.
Transit on all headings upto Sea State 7.
The vessels should be built as per class 1 shock grading classification.
|
| Boats | The following are to be provided:-
One Rigid Hull Inflatable Boats (RIB) (7 m).
RIB to be re-configurable for LIMO role with provision for fitting LMG/MMG.
RIB is to be provided with monsoon gear covers, which can be used even when the boats are onboard.
|
