Bidder's_Questions_and_Answers.pdf

GENERAL RUDDER

DRYDOCK AND REPAIR – 2016

SOLICITATION NUMBER DTMA93Q1600033

BIDDERS QUESTIONS AND ANSWERS

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Item # 208 Propeller inspection, Maint.

Q. Please provide the seal manufacturer and drawings. Per item # 502 the seals and seal rep. is govt. furnished. Please confirm.

R. Removal of outer seals is not required for accomplishment of this item, specification has been changed.

Item # 210 Sea Valves Q. Paragraph 3.1.2 states (33) valves per paragraph 6.1. para. 6.1 lists (46) valves. Valve # 3-38-

8 does not have a quantity. Please advise.

R. There are 46 Valves, including Valve 3-38-8, (Mn Generator Rm P), Emergency Bilge

Suction (ROV), Stop-check, 4 inch.

Item # 502 P/S Stern Tube & tail-shaft removal Q. Paragraph 4.2.1 and 4.3.1 state to see item 207 for GFM and GFS. Item 207 is the rudder item. It should read item 208. In item 208, are the seals and seal Representative Gov’t Furnished?

R. There is no government furnished material, specification has been corrected.

Q. Paragraph 6.1.1 states to cut a hole in ships side shell to remove shafting. According to the drawings the shaft pulls aft through the strut and stern tube. Please advise.

R. No, no hole is required, specification has been corrected.

Q. Paragraph 6.2.5 states to replace the seals, this is being done in item 208.

R. This has been deleted from item 208. Should replacement of seals be required, they will be replaced under item 502.

Q. Paragraph 6.2.11 states the oil will be contractor furnished. In item 208 the oil is Govt furnished. Please advise.

R. That is incorrect; oil will NOT be furnished by the Gov’t. The oil is readily available from

KEMEL.

Item # 503 Array tank.

Q. What type of liquid is in the array tank? Is it flammable?

R. No, this is now an unofficially designated Void and should be empty.

Q. Paragraph 5.2 states the tank is opened and cleaned in item 303. Item 303 does not mention anything about cleaning this tank.

R. This is a typographical error. Do not refer to item 303 for this Work Item.

Item # 505 Replace (4) silencers Q. Please provide the references mentioned in paragraph 2.0. They were not included in your previous posting of drawings.

R. At present, we do not have a more inclusive Spec to present for this item. Please bid this item following the Ship Check.

SOLICITATION NUMBER DTMA93Q1600033

BIDDERS QUESTIONS AND ANSWERS

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Item # 508 Galley exhaust vent ducting Q. Please provide drawings of this ductwork. How long is the ducting from top of range to termination?

R. Contractor to determine during time of the Ship Check

Q. The T/V General Rudder DD specifications mention three (3) NAVSEA technical manuals (reference #’s 33, 34 & 35 on page 5 of the specifications). Is there any possibility you could provide us with these references for our review and consideration while preparing our estimate?

R. These references have been removed as they are not applicable.

Q. In addition to the references I mentioned earlier, we also see a reference to NAVSEA Technical Manual: T9311-AH-MMC-03A in work items 213, 217 & 218. Based on the work item requirements, this technical manual is likely of more interest and may have more potential impact than the references mentioned in my earlier e-mail.

R. T9311-AH-MMC-03A is available onboard the vessel

Q. Work Item 205 Anti-biofouling System Maint. calls out for the shipyard to purchase three

(3) copper anodes and three (3) iron anodes from Elinca to be installed. Admiral Filter states the anodes have a 90 day delivery “after receipt of an order”. We suggest that the Govt. purchase these anodes now so they can be delivered prior to the completion of all work. The solicitation states the project has a 45 day window for the repairs to be completed.

R. Anodes will be Government Furnished, specification has been modified accordingly.

Q. We have a bid for the Oily Water Separator on work item 504. The lead time for the OWS is 4-5 months.

R. Item will be deleted, specification has been modified accordingly.

Q. 1. 52.212-4 (1) The Government must exercise its post acceptance rights within a reasonable time after defect discovered or should have been discovered; Question( What do you mean by reasonable time ?)

R. Any time prior to final contract completion and acceptance.

Q. Item 103 Will General Rudder provide mooring lines and gangway? Will the Gangway be an adequate fire escape?

R. Contractor to provide mooring lines and gangway.

Q. Item 104 Potable Water Is contractor to provide Item 2.1 5,000 gals and also Item 3.2 100 L/T ?

R. Yes

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Q. Item 105 Bilges and Drain Wells Would you like a price for 3,000 gallons are do you want price per gallon in reading the notes it asked for both ways.

R. Both

Q. Item 107 Protective Floor covering. Is roll cardboard sufficient for floor covering?

Q. Item 110 Fire Protection. What do you mean by Total cost for entire availability shall be submitted as an ITEMIZED bid price?

R. Entire Availability

Q. Item 113 Cooling Water. What is the size of the cooling water pump onboard the General

Rudder?

R. 440 GPM At 70 PSI

Q. Item 209 Ballast Tank Cleaning and Inspection . 7.0 Statement of Work 7.1.1 What do you mean by replace all fasteners found missing or defective. What percent how many for bidding purposes and what size and length? We need an amount or % for bidding purpose of mud and sludge?

R. Must be determined at the time of the Ship Check

Q. Item 211 Chain Locker Inspection, 5.1.3 if required will this be covered in supplemental labor?

R. No, this is not supplemental labor. If the job grows, then that will be examined.

Q. Item 211 Chain Locker Inspection, 5.1.5 can we use Audio Gauging?

R. No

Q. Item 211 Chain Locker Inspection, 5.2.1 If required what percent for bidding purposes.

R. Should be a set cost based on past experience.

Q. Item 211 Chain Locker Inspection, 5.2.2 Need amount for bidding purposes.

R. 11 Shots per side

Q. Item 212 Dock and Sea Trails. Will our personnel be required to leave on the Vessel for SeaTrials? If so how long will they be and how many are require.

R. Key personnel during dock trials may be required only to witness and verify or as needed to adjust lines and implement safety protocols required by your facility.

Q. Item 214 4.1 For bidding purpose do you want quote for 500 readings?

R. 500 should be sufficient. Any less can be credited per shot. Any more, will be charged per shot.

Q. Item 503 5.5 Is Sand Blasting the tank acceptable instead of Hydro Blasting ?

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Item 506.5.4.3.3 Inspect Gear Train:

Q. Please confirm requirement is to inspect the gear train at forward (opposite driving end) end of the engine and the accessible upper gears of the train on the after (driving end). Or, is the requirement to move and reinstall/realign the coupled generator in order to access and visually inspect the mating lower gears of the after (driving end) gear train?

R. Please bid per the MFG specification for Top End Overhaul

Item 503.5.1 Recommended ship check specifically for the Array Tank:

Q. The tank was not opened and certified “safe-for-men” during ship check availability. Will there be another site visit scheduled when this tank can be examined for bidding purposes as recommended?

R. Bid per the specified capacity of the tank as specified in section 3.1.1

Item 503.5.5 Surface preparation:

Q. Please identify the SSPC-SP standard referenced by the term “bare steel” and advise the SSPC-SP method referenced by the term “hydro blasting”.

R. SSPC-SP6-85, “Commercial Metal Blast” standard.

Q. Work item 203 does not describe how the keel to deep load line gets prepared after water washing. Please provide the percentage of area that needs sand blasting.

R. Abrasive blast to SSPC-SP6-85, “Commercial Metal Blast”. Please refer to section 5.16.

Q. Item No 503 Paragraph 5.5: What is the surface prep requirement for the water blast and or can we abrasive blast in lieu of water blast?

R. Abrasive blast to SSPC-SP6-85, “Commercial Metal Blast”.

Q. Item No. 507 Paragraph 5.82 States to water wash after blasting, Is that the intent? Usually we wash surfaces before you blast.

R. This statement has been omitted and the following statement added:

“5.8.2.Upon completion of grit blast, prepare the surface for coating per the coating manufacturer’s representative recommendation(s)”.

Q. The NAVSEA technical manuals I wrote you about earlier were not available onboard.

R. References were deleted, not applicable

Q. Please provide the engine serial number and current engine hours for WI 506? This information is necessary for Caterpillar to quote this item.

R. Serial number: 35Z00916, hours: 53,406

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The following question involves three (3) work items # 213 Bow Thruster Maint., #217 Main Propulsion Motors Maint. and #218 Generator Maint.

Q. All three of the above work items call for testing done by a load bank test. Load bank testing is only done to test a diesel engine with attached generator. Item #218 can be done without concerns. The other two work items are electrical motors, which can only be load tested at 100% by running the bow thruster and propulsion motors on a sea trial. The specifications call for a dock trial. These motors can’t be operated at full load while the vessel is tied up to a wet berth. You have to test them during a sea trial. The current specifications does not include a sea trial work item.

R. Load bank testing has been deleted. Motors/generators to be tested during dock trial.

Q. We suggest deleting paragraph 7.1 on work item #213, paragraph 7.1 of work item #217 and add a separate work item to accomplish a sea trial to test the bow thruster motor and propulsion motors.

R. See response to question 1 above.

Q. On work item 213 Bow Thruster Motor Maint. paragraph 6.8 calls out to renew one (1) set of brushes and holders. Please specify how many are in a set. The motor has four (4) sets of 4 brushes. Do we replace 4 or the entire 16.

R. Entire 16 to be renewed.

Q. This same question applies to work item 217 paragraph 6.8 R. Entire set to be renewed.

Q. Regarding the General Rudder specifications, Item no. 221 Install New High Temp

Dishwasher states the contractor is to provide two (2) new Jackson Avenger HT-E dishwashers.

Item no. 221, paragraph 6.2 is asking the shipyard to “determine” if existing connections are functioning properly, compatible and in good order. We can tell beforehand that there is a compatibility issue.

Looking at the provided Electrical One-Line Diagram DWG NO. 1355-S62-1-1 REV-B, the existing electrical cabling from Galley Power Panel P114 to the existing dishwashers is shown as cable type D-4 (15A) 115VAC.

The dishwasher model Avenger HT-E specifications require 208VAC at 38.4A, or 230VAC at 41.4A, or 480VAC at 11.3A. These requirements can be seen in the attached cut sheet for the dishwasher.

The voltage and cable size servicing the existing dishwasher installation is not compatible with the newly specified dishwasher.

It is advised to select a proper electrical power source, identify appropriate cable routing from the source, and modify the vessel repair specifications accordingly. The cost of providing proper

Page | 6 power to the new dishwashers, depending on the power source and cable route, could potentially exceed the cost of the new dishwashers themselves.

Nearby power panels will need to be assessed for ample remaining capacity to support these two new dishwashers, as these electrical loads are not insignificant. This is not something that can be easily determined from our side of things while estimating the job.

R. New dishwashers are to be configured for 480V. New, appropriately sized breakers are to be furnished and installed in the galley’s 480V power panel (P418) in the existing spare breaker slots. New appropriately sized wiring is to be installed from the breaker panel to the new dishwashers, an approximate 40 ft run. Wiring and installation methods are to be as required by Coast Guard regulations and ABS rules. Specification has been revised accordingly.

Q. Work item 502 paragraph 6.2.9 states the propellers were removed in work item 207. It should be 208. Item 208 does not address the removal of the propellers. Please clarify your intentions.

R. This is a typo and has been corrected. Propellers are to be removed and reinstalled per modified item 502.

Item 203 – Hull Preparation and Coatings

Q. Item 203 – Would the 29,800 sq ft include the interior of the sea chest, bow thruster and the “Upper Bow Area”?

Q. Item 203 – We cannot find a surface preparation listed for the Under Water Hull (5.13.1)?

There is a surface preparation listed for the Sea Chest and other hull items in 5.14.1 but not the underwater hull.

R. Abrasive blast to SSPC-SP6-85, “Commercial Metal Blast”. Please refer to section 5.16.

Q. Item 203 – Could UHP water blasting to a WJ-3 (commercial standard) be utilized instead of grit?

R. UHP will not be used unless specifically stated in the specification.

Item 208 Propeller Inspection, Maintenance and Repairs

Q. 6.3 Specification states to take readings in 4-72-1 & 4-72-2 F.O. tanks. What amount of fuel will be in tanks on arrival to ship yard?

R. Fuel On Board will be negligible.

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Item 211 – Chain Locker

Q. Item 211 – What pressure should be allowed for in the washing of the Chain Lockers i.e.

3000 PSI paragraphs 3.2.1 and 5.2.1?

R. Spec states Low-Pressure Water Cleaning (LP WC) Cleaning performed at pressures less than 34 Mpa (5,000 psi)

Q. Item 211 – Would the washing in 5.2.1 be in addition to the washing of 3.2.1 for the Chain Lockers or is only one wash required?

R. Chain and Lockers

Q. Item 211 – How much mud (if any) should be allowed for paragraphs 1.1 and 5.2.2?

R. 100 LBS

Q. Item 211 – Would staging be needed to access the upper areas of the lockers?

R. No staging would be required

Item 223 – Aft Mast Maintenance

Q. Item 223 – What is the surface area (in square feet) of the Aft Mast (6.1.6.3)?

R. Contractor’s Responsibility to determine at Ship Check.

Q. Item 223 – Specification directs to blast to an SP-5 (6.1.6) which is a “white blast” and the highest blast standard there is, and most commonly used in cargo liners carrying sophisticated products. Please advise if this is an error or not.

R. Spec will be changed to: SSPC-SP6 / NACE 3 Commercial Blast Cleaning.

Q. Item 223 – Could UHP water blasting to a WJ-2 standard be utilized instead of grit?

Item 224 – Forward Mast Maintenance

Q. Item 224 – What is the surface area (in square feet) of the Fwd Mast (6.2.3)?

R. Contractor’s Responsibility to determine at Ship Check.

Q. Item 224 – Specification directs to blast to an SP-5 (6.2.3) which is a “white blast” and the highest blast standard there is. Please advise if this is an error or not.

R. Spec will be changed to: SSPC-SP6 / NACE 3 Commercial Blast Cleaning.

Q. Item 224 – Could UHP water blasting to a WJ-2 standard be utilized instead of grit?

Item 503 – Blast and Coat Array Tank 2-92-2

Q. Item 503 – What is the surface area (in square feet) of the Array Tank 2-92-2?

R. Bid per the specified capacity of the tank as specified in section 3.1.1.

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Q. Item 503 – Would staging be needed to access the upper areas of the Array Tank?

R. Spec states tank sounding and capacity, so yes, minimal staging may be required in keeping with contractors own policies for safe working conditions.

Q. Item 503 – How much mud removal (if any) should be allowed for?

R. Minimal Mud & or Debris

Q. Item 503 – Due to the dangers associated with UHP water blasting inside of a tank with complex geometric structure and limited access could grit blasting to a SP-6 (commercial standard) be utilized and then pressure wash the entire tank?

R. Spec states SSPC 6

Item 504 – Optional Purchase and Install New Oily Water Seperator

Q. Please provide the following references:

2.1 Bilge System Modification, MDO Drawing 1355-S48-1-3

2.2 Ballast Piping System Modification, MDO Drawing 1355-S48-1-2

2.9 46 CFR Part 162.050, Section 21 Design Specifications

R. Item has been removed from the specification.

Item 507 – Upper Deck Blast and Coat –

Q. Could UHP water blasting to a WJ-2 standard be utilized instead of grit (5.8)?

Item General Question

General question – is all paints and thinners to be contractor furnished?

R. Yes, contractor to furnish all coatings to be applied per the contract

Q. Item 501, Strut Bearings: RTD Replacement - Please provide referenced technical manual

T9244-AF-MMC-010.

R. This manual does not exist and has been removed from the specification

Q. Item 505, Replace (4) Silencers – Main Diesel Generators - Please provide reference drawings 53711-259-0000-223.

R. Drawings available in the amended solicitation, Ref 40 & 41

Item 506, Top End – Main Generator No. 1 - Please provide contact information for owner provided Caterpillar service representative that will be working item.

R. Specification requires contractor to furnish the service representative and accomplish all listed repairs, parts and inspections.

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Q. Work item 504 paragraph 2.2 calls out a ballast piping system modification, MDO drawing 1355-S48-1-2. This drawing was not in the drawings given to the bidders. Please furnish this drawing since it is critical to the installation of the new Oily Water Separator.

R. Item has been removed from the specification.

As we discussed the spec items that were not included on the pricing sheet in the solicitation are 116, 403, 404 and 405. There is also one item that was on the pricing sheet without a spec provided, which is item 117 – Off Load of Liquids and Storage.

R. An Excel spreadsheet is being posted with Amendment 2 which is to be used by bidders to input their pricing. Spreadsheet will correct item numbering.