Browse Publications Technical Papers 952031
1995-09-01

Forecasting Engine and Airframe Development Cost 952031

Development programs for aircraft engines (272 programs) and airframes (338 programs) were evaluated with step-wise regression analysis to find correlations with program cost; i.e., the coefficients of parametric models. Data covering the last 50 to 60 years were included to obtain robust log-log models with approximately 20 independent variables. Standard errors (S.E.E.) less than 0.10 (log megabucks), and multiple correlation coefficients (R-Square) greater than 0.995 were obtained, validating the use of data from programs in the distant past. Some unexpected influence coefficients were found for program cost drivers.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Garrett TPF351-20 Engine Flight Test and Ground Test Performance

911011

View Details

TECHNICAL PAPER

Garrett TPF351-20 Turboprop Fan Engine Development

891047

View Details

TECHNICAL PAPER

Algorithmic Approach for Algebraic Derivation of Time and Distance to Speed during Variable Acceleration

2013-01-2324

View Details

X