A_-_Winch_Scope_of_Work181.docx

RFQ-OH-15-00181

Attachment A:

Statement of Work and Performance/Technical Specifications Electric Tether Winches

Background The U.S. Environmental Protection Agency’s National Risk Management Research Laboratory (NRMRL) has conducted aerial sampling of emissions since 2010 using a tethered aerostat. The aerostat lifts a gas and particle sampling instrument into the air typically about 200-400 feet to capture emissions from sources as diverse as waste fires, burning oil plumes, and forest fire smoke. The aerostat is tethered to the ground via one or two electrical winches holding a Spectra tether.

Scope This request calls for two battery-operated, remotely controllable winches capable of meeting the performance and technical requirements denoted below.

Performance/Technical Requirements

· 24 V DC power system with charging system. But batteries not included in this purchase.

· Tether feed system capable of ensuring against tether wear when the tether feeds out in any direction respective to the winch axis.

· Tether guide, system frame, system mount must be capable of withstanding significant (3G) forces

· Water resistant

· Controllable, variable speed, >75 feet/min operation under load, gear range can be changed for different aerostat sizes

· Spring activated, electrically released brake system

· Soft start, soft braking stop operation to avoid sudden changes on payload

· Forward and reverse, full power

· Remotely operable up to at least 1 mile in range.

· Remote control handset and winch-mounted button control

· Rack frame or legs for mounting on an ATV bed (e.g., John Deere Gator)

· Holds 1,000 ft of 1,000+ lb test Spectra tether (e.g., 6125 braid)

· Line tension torque: at least 60 lbs

· Must hold load without spinning and without the need to engage the controller motor as a brake

· Level tether line spooling if drum > 20 cm across

· Options for controller or power failure (e.g., hand winch)

· Contractor must provide written documentation to set-up, operate, and maintain the system.

· Contractor must provide documented, demonstrated experience with this product in an aerostat/tether operation.

· 1 year Manufacturer’s warranty for parts and labor

Deliverables Electric winch (Qty – 2) Remote Control (Qty - 2) Vendor shall deliver to EPA-RTP within 6-8 weeks of order placement.

Deliver to:

US Environmental Protection Agency 4930 Page Road Durham, NC 27703 Once item is received by EPA-RTP Receiving and Shipping, EPA shall deliver items to EPA-RTP Building E, Room E366.