Attachment 1 - Statement of Work (SOW) ATCT Sunshades.pdf

Statement of Work

Air Traffic Control Tower (ATCT)

Window Shade Replacement

1.0 GENERAL

1.1 Project Location: Spangdahlem AB, Germany, Air Traffic Control Tower (ATCT) (bldg. 77)

1.2 Purpose:

Window sunshades enable controllers assigned to the ATCT to effectively see the surrounding environment, airfield controlled/uncontrolled movement area, and aircraft within the Spangdahlem Control Zone (CTR). Current window shades at Spangdahlem AB

ATCT have exceeded lifecycle and are showing signs of deterioration. 4 of 24 current sunshades can’t be lowered, raised, or locked into position for continued use.

1.2 Scope:

Furnish all necessary labor, material equipment, transportation, and service to "Remove and Replace All Transparent Plastic Window Shades for 24 windows at Spangdahlem AB

ATCT. Work includes but is not necessarily limited to removing the existing shades and furnishing and installing new transparent plastic window shades, in accordance with this specification. 24 window shades, 12 primary lower, 12 primary upper. Upon completion, the new transparent plastic window shades specified herein shall be complete, functional, and ready for use by Spangdahlem AB ATCT. The approximate dimensions of the sunshades are:

- Lower windows 100’’ Width across the top, 90’’ Width across the bottom and 56’’ Height.

- Upper windows 100’’ Width across the top, 90’’ Width across the bottom and 37’’ Height.

1.3 Execution of Work on Spangdahlem AB:

The contractor shall comply with the requirements and regulations of the installation and shall perform his work so as not to interrupt or interfere with the normal business at the airport. The contractor shall assume full responsibility for the protection and safekeeping of products stored on the site. The contractor and his subcontractors shall maintain the job site in a neat and orderly condition. This includes the daily removal of rubbish, waste, tools, equipment and materials not required for the work in progress.

1.4 Existing Facility Operations:

All work shall be performed so that normal facility operations may continue with a minimum of disruption or interference. This will require that the contractor suspend disrupting or interfering activities until designated times. The designated times will be coordinated with the ATCT Manager or Project Engineer (PE). All costs incurred by the contractor on account of such suspension shall be at the contractor's expense. The contractor shall closely coordinate his activities with those of other contracts and contractors working in the vicinity to prevent delays and interference.

2.0 INSPECTIONS

2.1 Protection of Existing Utilities, Vegetation, Structures, and Improvements:

This item shall also apply to roadway, shoulders slopes, culverts, guard posts, fencing, gates, etc. Where such items are disrupted or damaged, they shall be repaired or replaced at the contractors' expense.

2.2 Protection and Cleanup:

The contractor shall have the overall responsibility for the performance and enforcement of all forms of protection against the weather, and further the responsibility for repair and replacement of material or equipment damaged because of inadequate protection.

3.0 TRANSPARENT PLASTIC WINDOW SHADES

3.1 General:

This specification sets for the requirements for material, fabrication, transportation and installation of plastic window shades for use in Air Traffic Control Tower (ATCT) cabs.

These shades are required to reduce the sun's direct and reflective glare and to contribute to temperature control of tower cabs. Shades shall be installed on all exposures of the cab.

3.2 Applicable Documents:

The following specification and standards of the issues in effect on the date of invitation for bids or request for proposal form a part of this section and are applicable as specified herein. In the event of conflict between requirements of this equipment specification and documents listed or referenced herein; this specification shall have precedence:

3.3 Federal Specification:

L-P-377b, Plastic Sheet and Strip Polyester. Copies of this specification may be obtained from the Contracting Officer on Shaw AFB or request for proposals.

3.4 Federal Standard:

FED-STD- I 02, Preservation, Packaging, and Packing Levels. Information on obtaining copies of Federal specifications and standards may be obtained from the General Services

Administration.

3.5 Association of Industrial Metallizers, Coaters and Laminators (AIMCAL) Standard

Methods:

Copies of this standard may be obtained from AIMCAL, 61 Blue Ridge Road, Wilton, CT 06897 (203)-762-5611

3.6 Material to be Furnished:

Material furnished by the contractor shall be complete in accordance with all specification requirements and shall include the following items.

3.7 Transparent Plastic Shade Material:

Shade film shall be manufactured from a polyester type polymer, such as DuPont "mylar" or equivalent in accordance with Federal Specification L-P-377b.

3.8 Transparent Plastic Shade Film Construction:

Tower shades will be in accordance with FAAE-2470b, Transparent Plastic Window

Shades and FAA-ANI-300-380, Transparent Plastic Window Shades. An ISO 9000 registered company must manufacture the transparent plastic shade film. The transparent plastic shade film construction shall be in accordance with Madico, Inc. of Woburn, Massachusetts Type SSLW-500-SRJGray/SR or approved equal. The film shall be a minimum 72 inches in width and 5 mils total thickness. The shade product shall consist of four-ply laminated polyester film (or approved equal). The two laminated center sheets shall each be 1.5 mil thick polyester vat dyed gray in color meeting the Martin

Processing Co. of Martinsville, VA specification (Gray dye, reference #8301 and laminate reference #51012) or approved equal. A clear l mil thick polyester film shall be laminated to each side of the gray dyed film laminate. Both exposed sides of the shade film surfaces shall be protected with a scratch resistant coating. The final film construction will be 5 mils thick, optically clear and totally transparent. Surface tinting and/or colored adhesives will not be an acceptable equal without independent reports qualifying the color stability in comparison with the vat dyed process.

3.9 Ultra-Violet Transmission:

The shade film shall transmit no more than 2% of the ultra-violet solar energy in the 300-to 380 nanometers range of the solar spectrum when measured in accordance with the

AIMCAL standard test methods.

3.10 Total Solar Energy Rejected:

The shade film shall reject at least 60% of the total solar energy transmitted from 360 to

2100 nanometers when measured in accordance with the AIMCAL standard test methods.

3.11 Shading Coefficient:

The shade film shall have a maximum shading coefficient of 0.45 when measured in accordance with the AIMCAL standard test methods.

3.12 Solar Heat Gain coefficient:

The shade film shall have a maximum solar heat gain of 0.40 when measured in accordance with the AIMCAL standard test methods.

3.13 Visible Light Transmission:

The shade film shall transmit no more than 4% of the visible solar energy in the 380 to

780 nanometers when measured in accordance with AIMCAL standard test methods.

3.14 Bottom Bar:

Shades shall have a flat 1-inch by ½ inch, dull black, full width hemline bar, (minimum of 26 gage) at the bottom onto which the pull cord and shade are attached. Removable black plastic caps shall be provided on each end of hemline bar to cover any sharp exposed edges.

3.15 Shade Cords:

Cords shall be color black and of sufficient length to route around stairwell and equipment to cord lock positions whenever required. The cords shall be 9/64 inch diameter rope made of 4.5 Duro Nylon or approved equal and shall be attached underneath the center of the bottom of the hemline bar. The Site TCT Manager will determine where they believe the cords and cord control hardware will be installed.

3.16 Shade Rollers:

Shades shall be mounted on 1-3/4 inch diameter wrapped rollers. The rollers shall be spring loaded, single piece barrel, with a reusable safety cotter key type retainer installed through both end pins and washers to prevent roller from falling out of mounting brackets. Constant tension in shades is required.

3.17 Mounting Brackets:

Mounting brackets shall be Plastic View, Simi Valley, CA; PV 128-205A and B, or approved equal with a 2-114 inch resting ledge. Regular "industry norm" ceiling brackets are not acceptable. The shade film shall be mounted onto the rollers so as to minimize ridging. Roll-off direction of material from roller shall be as directed by the shade manufacturer for use in the specific tower cab under consideration. Each shade shall have a label or whatever suitable means required to specify and identify the proper roll- off direction.

3.18 Shade Labels:

Each shade shall have two (2) manufacturer's label attached to the metal bar hemline giving cleaning instructions and the telephone number for emergency service.

A label stating "THIS END DOWN" with an arrow pointing to proper installation direction of the roller into the mounting brackets shall be placed on the spring motor end of each shade roller.

A sticker on the bottom of the metal hemline, with each shade's number, aids in saving installation time and eliminates the possibility of putting the wrong shade in the wrong brackets during shade washing, cab painting, ceiling work etc.

3.19 Lock Pulley and Cord Direction Change Pulley:

Lock pulleys shall consist of a roller and spring return side action cam cord grip #R359

Britain, Merriman, Co, Millersville, MD or approved equal. Cord direction change pulleys #PV-128-CDC/57-1006/8 Plastic View, Simi Valley, CA or approved equal shall be used to route shade cord around obstructions where they exist. Pulleys shall be positioned in direct line with cord outlet on metal hemline. The s i t e ATCT Manager will provide recommendations on the type of hardware used.

3.20 Special Tools for the Shades:

Spring Motor Winder Tool to re-energize or add tension to spring.

3.21 Stick Hook:

Stick hook for reaching the cord when flipping the bottom metal hemline over the roller to tighten or loosening the spring motor tension.

3.22 Arm Down:

Accessory hardware unit may be needed to re-route cord if bottom of the window is lower than the consoles.

3.23 Wood Plate:

In situations where the acoustic tiles are installed directly up against the glass, it may be necessary to use a wood plate (l inch x 4 inch x 12 inch) with the brackets attached to spread out the total "pull weight" of the shade.

4.0 FABRICATION

4. 1 Shade Size:

The shade roller width shall be to within ½ inch of maximum possible width as determined by physical limitations. Shade material width with shade fully drawn shall be to within 1 inch of columns on bias cut sides and within 1-3/4 inch of columns on vertical cut sides. Horizontal seam shall be located a minimum of 70 inches up from the bottom metal hemline bar. Shades in the ATCT cabs shall be bias cut when required. To ensure a safe roll-up, a minimum of 12 inches of shade film shall remain on the roller when the shade is fully extended.

4.2 Measuring for Shades:

Measuring for shades and positing shall be strictly in accordance with the shade manufacturer's instructions. Marks showing the precise position of all brackets, pulleys, and metal hemline positions as related to the factory measuring instructions shall be provided. All the measurements shall be taken per instructions from the manufacturer.

4.3 Packaging:

Packaging shall be in accordance with FED-STD-102, Level "B". Shades shall be packaged to afford adequate protection against deterioration and damage during shipment. The supplier may use his standard practice when it meets these requirements.

4.4 Installation:

Shades shall be installed in shade recess pockets or on wood or metal plates. Shades shall follow the slope of cab glass as closely as practical within physical limitations of air ducts and other equipment. No drilling is to be done in vertical uprights of cabs, as some uprights contain electrical cables or rain down spouts. Spring tension in roller shall be manually adjusted so that shades roll up comfortably. In order to safely control and limit the shade travel, the installer shall make two knots in the shade cord. One knot is to be placed before the lock pulley to prevent the metal hemline bar from hitting the windowsill. The second knot is to be placed after the lock pulley to prevent the metal hemline bar from hitting or overrunning the shade roller. Adherence to the "THIS END DOWN" label when installing the shade will prevent improper roller installation which can result in locked shade situation when the metal bar hemline in near the lock pulley and cannot be pulled down to release the spring motor camlock.

5.0 CONTACTS

Site ATCT Manager/Tower POC: MSgt Edwin Diaz, DSN 314-452-4802, edwin_gregory.diaz@us.af.mil

SMSgt John Addams, DSN 314-452-4802, john.addams.1@us.af.mil@us.af.mil

Contracting Officer: Mr. Angelo Minisini, DSN 314-452-9541, angelo.minsini@us.af.mil