METRIC 2.1,.89 EDPVE1.PRM .5272395,.354,1.511445,.097 16.5 .5334896,1.6835016,3.605388,1.003009 ====================================== .1116931,1.977,1.2114282,1.194 ====================================================================== EDPVE.PRM NOTES: PARAMETER FILE FOR SIMLAB-F PROGRAM READS ONLY FIRST EIGHT LINES THEY ARE: FIRST LINE SAYS ENGLISH OR METRIC - PER SE (NOTE ENGLISH OPTION UNTESTED!) SECOND LINE IS STANDARD DENSITY AND MINIMUM BURNING RATE DENSITY IS IN GM/CM^3 - USED WHEN NO PROPELLANT MASS IS INPUT MINIMUM BURNING RATE IS IN CM/SEC - USED AS FIRST PROGRAMMATIC GUESS AT BURNING TIME (*) THIRD LINE HAS LN(VE) POLYNOMIAL PARAMETERS (X0-X3): COEFFICIENTS IN LN(P) FOURTH LINE HAS LNVE POLYNOMIAL PARAMETERS (X4-X6) AS ABOVE FIFTH LINE HAS LOW AND HIGH PRESSURE RANGE FOR ABOVE POLY ESTIMATE SIXTH LINE HAS TWO PRESSURE/RB PARAMETER SETS: A, N FOR RB=A*(P^N) SET FORTH AS LOW PRESSURE A AND N, HIGH PRESSURE A AND N SEVENTH LINE HAS CUTOFF KRATIO FOR ABOVE AND BELOW EIGHTH LINE HAS PRESSURE/Kn PARAMETERS: A, N IN P=A*(Kn^N): 2 SETS CORRESPONDING TO DIFFERENT BURNING RATES THE PROGRAM LOOPS THROUGH ENTRY OVER AND OVER. IT USES VALUES ENTERED AS DEFAULTS. DEFAULT VALUES ARE DISPLAYED IN PARENS ON INPUT PROMPT. (*) TO GET A FULL 500 POINTS, GRAPH ONCE ON SCREEN, THEN CHOOSE THE OPTION TO SET THE BURNING TIME. WHEN PROMPTED FOR A TIME, PRESS WITH NO ENTRY. PROGRAM WILL RE-RUN WITH FULL TIME. USEFUL WHEN INITIAL ESTIMATE SO FAR OFF THAT FULL GRAPH WON'T DISPLAY ON FIRST TIME THROUGH. NOTE SPLINE TABLES PRODUCED BY PROGRAM MAKESPLN