( Collect) DESL Macro Collection

The following is a list of the currently defined DESL user macros which are available for inspection and/or downloading (file|save as) from your browser.

See the macrolib command for a discussion of how to activate macros in a DESL session.

Beta derivative. Compute standard beta derivatives from two files containing alpha sweep lateral data at two different values of beta.

The second file's dependent lateral variable ( rolling moment coefficient "crm", yawing moment coefficient "cym", side force coefficient "cy") data will be fit via a third-order piece-wise polynomial curve to correspond the values of the independent variable ("alpha") from the first file. The values of "beta" and "run" will be brought along for reference.

Calling syntax : bd file1 file2 newfile

Assumes the names of variables which will be used to compute derivatives are on the files as "alpha", "beta" ,"crm", "cym", "cy", "run" .

See/download the source of the macro.

Performance Calculations. Compute some common aircraft performance parameters for various combinations of test/run/CLcruise.

See/download the source of the macro.

Reform of Data. Restructure one or more files which are a function of some independent variable, each at constant values of a second variable, into files which vary in the second variable at constant values of the original independent variable. Fitting can be done during this process.

See/download the source of the macro.