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The DEPT OF DEFENSE | DEPT OF THE ARMY has issued a Tender notice for the procurement of a Closedcircuit Wind Tunnel 24Inch Test in the USA. This Tender notice was published on 04 Aug 2026 and is scheduled to close on 07 Aug 2026, with an estimated Tender value of Refer Document. Interested bidders can access detailed Tender information, eligibility criteria, and complete bidding documents by referencing TOT Ref No. 146491825, while the tender notice number is PANRSA-26-P-0000-037658 and Registering on the platform.
Procurement Summary
Country: USA
Summary: Closedcircuit Wind Tunnel 24Inch Test
Deadline: 07 Aug 2026
Posting Date: 04 Aug 2026
Other Information
Notice Type: Tender
TOT Ref.No.: 146491825
Document Ref. No.: PANRSA-26-P-0000-037658
Competition: ICB
Financier: Self Financed
Purchaser Ownership: Public
Tender Value: Refer Document
Purchaser's Detail
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Login to see detailsTender Details
The Closed-Circuit Wind Tunnel (24-inch test) shall include the following specifications or equivalent (if not brand name):
Requirements:
This wind tunnel must be a closed circuit, as the operation of an LDV system requires seed particles to be added to the air stream - in this case, a substance called Bis(2-ethylhexyl) subacute. The wind tunnel thus needs to be fitted with a 3/8-inch Swagelok bulkhead fitting placed upstream of the test and transitional sections.
This wind tunnel must have a maximum operating speed of approximately 50 meters per second (~9900 feet per minute). The test section walls must have 25.908 millimeter (~1.02-inch)-thick grooves placed at approximately 90 percent of the total length of the test section as measured from the entrance in which specialized nozzle restriction plates can be affixed to adjust the operating range and achieve an air speed of 0.15 meters per second (~30 feet per minute). The typical turbulence intensity across this operating range must be less than 1 percent, where turbulence intensity is defined as the root-mean-square of velocity fluctuations divided by the average test section velocity.
This wind tunnel must have a test section height and width of 60.96 centimeters by 60.96 centimeters (~24 inches by 24 inches). Test section length can vary if the design meets the following requirements: The test section must have at least two sealable ports or fittings for the insertion of instruments of various sizes, such as Pitot-static tubes and hotwire anemometers. These ports or fittings must accommodate the following instrument diameters: 4.3 mm (~0.188 in); 6.3 mm (0.25 in); 7.9 mm (0.313 in); 9.5 mm (0.375 in); 10.1 mm (0.4 in); 12.7 mm (0.5 in); 15.9 mm (0.625 in). The test section must also be designed such that a 15-inch section of the usable test area located approximately 6 inches upstream of the nozzle restriction plates can be replaced with a test item without introducing any leaks into the circuit...
Notice ID: panrsa-26-p-0000-037658
Department/Ind. Agency: dept of defense
Sub-tier: dept of the army
Office: w6qk acc-rsa
Product Service Code: 6636 - environmental chambers and related equipment
NAICS Code: 541715 - Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
Inactive Dates: aug 22, 2026
Inactive Policy: 15 days after date offers due
Documents
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