1056. The Challenge of Weight and Balance Control and Design-To-Cost for Y/C-14 Prototype Development


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J G Hutton: 1056. The Challenge of Weight and Balance Control and Design-To-Cost for Y/C-14 Prototype Development. 1975.



The YC-14 is being developed by Boeing for the United States Air Force in a program intended to improve transport
airlift capability. Program goals include STQL performance and a significant expansion of tactical payload carrying
ability within cost constraints. In response, the Boeing YC-14 development objectives include the following:
* Demonstrate upper surface blowing (WSB) as an efficient STQL propulsive lift augmentation system
* Demonstrate YC-14 utility in expanding tactical airlift capability
* Demonstrate YC-14 ability to accommodate unusual (large, heavy) payloads
* Prove the ability to meet cost goals
The weight and balance control objective on the YC-14 program is to help direct the prototype development in meeting
the program goals. YC-14 prototype design involves significant challenges. Both time and funding are limited for
testing to provide problem solutions. Time is also limited for design layout cycling to achieve best design. Early
in design stages the design-to-cost goals required direct involvement at a highly detailed level with few people.
YC-14 weight and balance control activities have recognized and successfully dealt with those challenges. The design
work package team concept, utilized on the YC-14 program, is instrumental in providing fast, accurate, and widely
disseminated information early in the design phase. A high degree of weight staff-initiated direction is providing a
sound basis for the program decision-making process.


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