J-6_Proposed_Equals_and_Salient_Characteristics.docx
DOCX document 29 KB Posted
- Attached to
- NPS ISRO Ranger IV Vessel
- Solicitation number
- 140PS125R0009
About this file
The document is a Proposed Equals and Salient Characteristics file for the National Park Service's Isle Royale Ranger IV Vessel project, detailing specific equipment specifications for marine propulsion components. The document outlines three critical marine equipment components with precise technical specifications: (1) Caterpillar 3512E Marine Propulsion Engines with 1,502 bhp, EPA Tier IV emissions certification, and diesel fuel capability, (2) Reintjes LAF-665 Reduction Gearbox designed for propulsion with controllable pitch propeller capabilities, and (3) VEM IE4-W61R 315 Hybrid Electric Motors with 315 kW power output, 97% efficiency, and continuous operation rating. Each component is specified with manufacturer details, performance characteristics, duty ratings, and technical compliance standards, indicating a comprehensive technical approach to vessel design with emphasis on propulsion system integration and environmental performance.
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Text version
PROPOSED EQUALS
In accordance with Provision 52.211-06 (Section L), the following products are being proposed as equals. Provide all attachments required by the provision, as applicable. Use additional sheets of paper as necessary.
| Section No. |
| Paragraph No. |
| Product/Model No. |
| Proposed Product/Model No. |
A. By submitting the proposed equal, the Contractor certifies that it:
1. Has investigated the proposed item and determined that it is equal or superior in all respects to the specified Salient Characteristics;
2. Will provide, as a minimum, the same warranties for the proposed item as for the item specified;
3. Has determined that the proposed item is compatible with interfacing items;
4. Will coordinate the installation of an approved item and make all changes required in other elements of the work because of the substitution; and
5. Waives all claims for additional expenses that may be incurred as a result of the substitution.
B. The Contractor is encouraged to submit for approval products that exceed accessibility standards, are sustainable and/or made from recycled or environmentally responsible material. Every effort will be made to approve these materials.
Equipment Salient Characteristics
1.1 Main Engines
| Manufacturer: | Caterpillar | |
| Model: | 3512E Marine Propulsion Engine | |
| Description: | 4-Stroke Cycle Turbocharged and Aftercooled Diesel Marine Propulsion Engine |
Performance:
| Horsepower: | 1502 bhp | |
| RPM: | 1600 RPM | |
| Duty Rating: | A (Unrestricted Continuous Duty). For Vessels operating at rated load and rated speed up to 100% of the time without interruption or load cycling (80% to 100% load factor). | |
| Fuel: | Diesel |
Brake Specific Fuel Consumption: 194.6 g/bkW-h
| Emissions: | Certified to U.S. EPA Tier IV emissions utilizing Selective Catalyst Reduction (SCR) aftertreatment technology | |
| SOLAS: | Meets SOLAS requirements | |
| Control System: | Electronic | |
| Mounting: | Resilient Mounted |
1.2 Reduction Gears
| Manufacturer: | Reintjes | ||
| Model: | LAF-665 | ||
| Description: | Reduction gearbox for propulsion with controllable pitch propeller |
Performance:
Inputs/Outputs:
| Input Shaft from Main Engine | ||
| Output Shaft to Propeller Shaft | ||
| Power Take Off (PTO) and Power Take In (PTI) shaft to Hybrid Motor/Generator | ||
| Horsepower: | Rated for Main Engine horsepower | |
| RPM: | Gear ratio selected for main engine and propeller | |
| Duty Rating: | C (Continuous Duty). For Vessels with continuous operation with little or no variations in engine speed and power, and unlimited engine operating hours. | |
| Control System: | Electronic | |
| Mounting: | Free-standing |
1.3 Hybrid Electric Motors
| Manufacturer: | VEM | |
| Model: | IE4-W61R 315 | |
| Description: | Three-phase asynchronous motor for use as hybrid system motor/generator |
Performance:
| Power: | 315 kW | |
| Rated Speed: | 2,985 RPM | |
| Voltage: | 400/690V/D/Y | |
| Frequency: | 50 Hz | |
| Duty Rating: | S1 (Continuous Operation) | |
| Efficiency at Rated Load: | 97% | |
| IEC size: | 315L | |
| Standard: | EN 60034/IEC 60072 |
B08 Solicitation PSP Vol II Equals v1 2025Feb
File details come from the government source that posted it. Updated .