Takeoff Predictions for Powered-Lift Aircraft

861630

10/01/1986

Event
SAE Aerospace Technology Conference and Exposition
Authors Abstract
Content
Takeoff predictions for powered lift short takeoff (STO) aircraft have been added to NASA AMES Research Center's aircraft synthesis (ACSYNT) code. The new computer code predicts the aircraft engine and nozzle settings required to achieve the minimum takeoff roll. As a test case, it predicted takeoff ground rolls and nozzle settings for the YAV-8B Harrier that were close to the actual values. Analysis of takeoff performance for an ejector-augmentor design and a vectoring-nozzle design indicated that ground roll can be decreased, for either configuration, by horizontally moving the rear thrust vector closer to the center of gravity, by increasing the vertical position of the ram drag-vector, or by moving the rear thrust vector farther below the center of gravity.
Meta TagsDetails
DOI
https://doi.org/10.4271/861630
Pages
12
Citation
Wardwell, D., Sandlin, D., and Hahn, A., "Takeoff Predictions for Powered-Lift Aircraft," SAE Technical Paper 861630, 1986, https://doi.org/10.4271/861630.
Additional Details
Publisher
Published
Oct 1, 1986
Product Code
861630
Content Type
Technical Paper
Language
English