1760 INTERNAL WEAPONS BAY UPGRADE (IWBU)

Abstract

The MIL-STD-1760 Internal Weapons Bay Upgrade (IWBU) enables the integration of the 1760 weapons capability into the bomb bay on 78 B-52H aircraft (76 operational plus two (2) Ground Instructional Training Aircraft (GITA)), utilizing 44 Common Strategic Rotary Launchers (CSRLs) converted into Conventional Rotary Launchers (CRLs). Three of the CRLs were modified under EMD for test purposes. The 1760 IWBU project is segmented into increments. Increment 1.0 provides internal and external carriage of JDAM, Laser-JDAM, JASSM, JASSM/ER, MALD, and MALD/J. It consists of two sub-increments 1.1 and 1.2. This requirement's CDD was validated by the Air Force Requirements Oversight Council (AFROC) in June 2013. The 1760 IWBU Inc. 1.1 CDD was revalidated as a Capability Production Document (CPD) by the AFROC in February 2015; the 1760 IWBU Inc. 1.2 CPD was approved October 2018. Development efforts for Increment 1.1 were completed in November 2015 and Air Force Global Strike Command (AFGSC) declared Initial Operational Capability (IOC) in May 2016. AFGSC declared Full Operational Capability (FOC) in June 2018. Increment 1.1 utilizes 44 CSRLs converted into CRLs, where three of the CRLs will be modified under EMD for test purposes. Increment 1.2 converts 44 CRLs three of which will be modified under EMD and 76 operational B-52H aircraft plus two GITA. Increment 1.2 develops the capability for internal carriage of eight Joint Air-to-Surface Standoff Missiles (JASSM) and its variants, to include JASSM Extended Range (JASSM-ER), and eight Miniature Air Launched Decoys (MALD) and its variants, to include MALD Jammer (MALD-J). This increment also develops the capability for external carriage for 12 JASSM-ER. Increment 1.2 completed Preliminary Design Review (PDR) in October 2015. Critical Design Review (CDR) was conducted in March 2016. Milestone B approval was granted in April 2016. An Integrated Baseline Review (IBR) was conducted in May 2016, validating cost and schedule baselines. Long Lead parts approval was granted in October 2016, estimated award August 2018. In addition, a change from Low Rate Initial Production (LRIP)/Full Rate Production (FRP) to an FRP-only strategy with 2 lot buys was approved in October 2016. Lot I/II Approval was granted after the Milestone C Decision, November 2018. Upon completion of JASSM/ER software development, an interim capability provided for carriage and deployment of no less than 20 JASSM/ER [8 bay (power 4), 12 external] is planned. A combined DT/OT validated this capability in advance of 1.2 Full System validation, and Required Assets Available (RAA) was declared September 2017. AFGSC declared 1.2 Interim Fielding Authorization October 2017. Aircraft Hardware Development: Development of Group A wiring and circuit breakers to supply additional power to the CRL per JASSM-ER requirements (for all 76 operational B-52H aircraft) and two GITA. Software Development consists of a modification to existing aircraft SMO and weapon (JASSM and MALD) OFP software to allow for internal and external carriage and modification to ground-based Joint Mission Planning System (JMPS). CRL Hardware Development consists of developing Group A-associated interface hardware and two Group B LRUs (power supply and power distribution box). Two CRLs were modified for Interim and three CRLs were modified for 1.2 Full system using RDT&E funds. Support Equipment consists of developing software updates to the existing MUSTANG to interface with the CRL and the development of additional ground handling support equipment, maintenance stands. DMS efforts to include removal of end-of-life software/hardware within simulators systems and move to a modular, common open system architecture that is sustainable and cyber-resilient. Additionally, implementation requirements and standards are defined under the Simulator Common Architecture Requirements and Standards (SCARS) initiative. Funds may be used to resolve emerging safety of flight and DMS issues, accommodate technology insertion, and fulfill FAA (or other) mandates necessary to ensure continued aircrew safety and mission effectiveness.

Document Details

• Document Type: Project
• Publication Date: Oct 01, 2020
• Source ID: 675048_0101113F_7_3600_PB_2020

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• Naval Mine Countermeasure Systems Development.

Technology Areas

• Cyber
• Directed Energy