3846 Vendor Guarantee Weights in Product Development
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Paper
Abstract
Aircraft OEMs outsource significant design and build scope to vendors/suppliers. A Guarantee weight (often termed a Guaranteed-Not-to-Exceed weight) is the maximum allowable delivered weight of a supplier’s item. This paper outlines key considerations for establishing Guarantee weight agreements between design/manufacturing suppliers and aircraft OEMs in the civil aviation industry. Contractually binding Guarantee weights are critical to meeting aircraft performance and safety goals. Because suppliers face penalties for non-compliance, Guarantee weights must be realistically achievable within program cost and schedule constraints. Guarantees are often set early in development, before the design is stable. Early unknowns create weight risk that must be accounted for (via management reserve, weight-growth allowance, or other countermeasures) to reach an agreement acceptable to both parties.
