Hangar Door Plug

Questions & Answers / Clarifications

This document provides clarifications and answers to vendor questions regarding the Hangar Door Plug requirement for solicitation FA449726Q0006. It aims to ensure accurate technical interpretation and alignment between the government's needs and vendor proposals.

• Hangar Door Opening Configuration: The government confirms that the hangar door opening should be assumed to approximate the C-5 fuselage diameter, and the inflatable plug assembly must seal the gap created when a C-17 is positioned within that larger opening. The system is intended for C-17 aircraft only, not C-5.
• System Design: A hybrid system (inflatable + non-inflatable fabric) is not acceptable. The requirement is for an inflatable system added to existing aperture doors, not a full-height fabric curtain. The system should not be designed for jacked C-17 configurations.
• Hangar Door Dimensions: The approximate height of the hangar doors/clear opening at Building 714 is confirmed as 368 inches (30.5 feet).
• System Type: The government envisions a packable, railed curtain system. This includes a single-body fabric curtain with keder rails on vertical edges, a contoured fuselage cutout with inflatable padding, and non-inflatable fabric areas outside the cutout. The curtain should be installable by two people or less.

These clarifications refine the technical requirements for the inflatable plug system, specifically regarding aircraft compatibility, system construction, and dimensions. Bidders should ensure their proposals align with these confirmed details, particularly the C-17-only focus and the specific design of the inflatable system.

Amendment / Modification

This amendment modifies Solicitation FA449726Q0006.

• The Request for Quotation (RFQ) due date has been extended to 13 FEB 2026.

• All questions are to be submitted to 436CONS.PKB.ORG@us.af.mil by 2:00 P.M.E.S.T. on 4 February 2026.

• The delivery requirement has been updated to "180 ARO" (After Receipt of Order).

• Item 9A: Amendment of Solicitation Number (FA449726Q0006)

• Item 9B: Dated (23 Jan 2026)

• RFQ Due Date

• Delivery Requirement

• The proposal submission deadline has been extended to 13 FEB 2026.

• The deadline for submitting questions has been set for 4 February 2026.

Solicitation / RFP / RFQ

This solicitation, FA449726Q0006, is for the procurement of an "INFLATABLE HANGAR DOOR PLUG BLDG 714". The acquisition is set aside for Small Business and is associated with NAICS code 811310 (Commercial and Industrial Machinery and Equipment (except Automotive and Light Duty Truck) Repair and Maintenance) with a size standard of USD 12,500,000.00.

• The primary deliverable is one (1) unit of an "INFLATABLE HANGAR DOOR PLUG BLDG 714".

• The Product Service Code (PSC) is J039.

• Pricing Arrangement: Firm Fixed Price.

• The estimated value for this contract is USD 12,500,000.00.

• The period of performance is not explicitly detailed in the provided pages, but the delivery date is requested by 17 Jan 2026.

• Offer Due Date: 06 Feb 2026 at 01:00 PM local time.

• The solicitation incorporates FAR clauses 52.212-1, 52.212-3, and 52.212-4 by reference, with 52.212-5 attached. Evaluation will be based on Price and Technical Acceptability, with specific factors to be inserted by the Contracting Officer.

• This acquisition is 100% set aside for Small Business.

• The document includes numerous FAR and DFARS clauses related to contract administration, payment, representations, and certifications.

• Payment requests and receiving reports are to be submitted via Wide Area WorkFlow (WAWF).

• Unique item identification requirements are detailed in DFARS clause 252.211-7003.

Statement of Work (SOW) / Performance Work Statement (PWS)

To acquire an inflatable hangar door plug system for Hangar 714 North at Dover AFB. The system is needed to create a thermal and weather seal around a C-17 aircraft fuselage, resolving air gap issues caused by the hangar's C-5 configured doors. This will enable year-round C-17 maintenance operations and protect hangar infrastructure.

• Provide an inflatable hangar door plug system.

• The system must seal the aperture between the hangar doors and a C-17 fuselage.

• Installation requires a bolt-on, corrosion-resistant aluminum keder rail system.

• The plug edges must have a reinforced Keder seam for secure retention.

• Installation of the rail must not impede normal hangar door operation and should be performable by two people without specialized training.

• Inflation System: Fully inflate the plug in under 3 minutes.

• Operating Temperature Range: -22°F to 158°F (-30°C to 70°C).

• Wind Load Resistance: Withstand up to 50 MPH without damage or deflation.

• Fire Retardancy: Fabric must meet or exceed NFPA 701 standards.

• Inflation Blower: Electrically safe (110V AC), guarded, with a pressure relief valve.

• Not explicitly stated, but the location is Hangar 714 North, Bldg 714, 736 AMXS, Dover AFB.

• Materials: High-strength, lightweight, fire-retardant fabric resistant to puncture, UV, and aviation fluids. High-grade, corrosion-resistant aluminum for keder rails.

• Portability & Storage: Entire system package not to exceed 85 kg (187 lbs) and dimensions of approximately 100cm x 80cm x 70cm.

• Warranty: Minimum 12-month warranty for parts and labor covering defects and workmanship.

• Kit Contents: Must include inflatable plug, electric blower (110V AC), keder rails, mounting hardware, storage bag, on-site repair kit, and weatherproof installation/re-packing instructions.