1、Lessons Learned Entry: 1292Lesson Info:a71 Lesson Number: 1292a71 Lesson Date: 2002-01-01a71 Submitting Organization: ARCa71 Submitted by: DR Mendoza/ M. SumichSubject: Cost Estimates for Flight Test Vehicles Based on Technological Complexity Versus Weight Description of Driving Event: Cost estimate
2、s for the project were based on the standard method based on aircraft weight. However, while the test vehicle was not full scale, it had an ensemble of technologies never flown before and had as many if not more components than are found on full size aircraft. Therefore, the cost estimates based on
3、weight alone were significantly lower than the actual.Lesson(s) Learned: Cost estimates for highly sophisticated flight vehicles do not scale accurately with weight and can be from 40% to 80% higher.Recommendation(s): Cost estimates for highly sophisticated sub-scale flight vehicles should only use
4、weight as a baseline. The complexity, number and significance of new technologies, and number of sub-systems as compared to full size aircraft should be factored into the estimate as additions to the baseline. Evidence of Recurrence Control Effectiveness: N/ADocuments Related to Lesson: N/AProvided
5、by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Mission Directorate(s): a71 Exploration Systemsa71 Aeronautics ResearchAdditional Key Phrase(s): a71 Aircrafta71 Financial ManagementAdditional Info: Approval Info: a71 Approval Date: 2002-10-10a71 Approval Name: Anthony Bricenoa71 Approval Organization: ARCa71 Approval Phone Number: 650-604-1012Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
