Hi Anthony.

Spent some time studying your pdf of PROP_DESIGN_GEO.fortran program.

Speaking as a non-engineer, and amateur javascript programmer, the 200+/- lines of fortran code are relatively comprehensible,
and creating an (amateur) Moi javascript should be relatively easy.

There are 2 data arrays of 27 elements each. 8 integer variables, PI, 15 indexed variables, and 12 variables.
Unit 3 is for 10 input parameters to put on a .htm input screen for the A400 example.
Function #3, with input Do (for) loops.
Function #4 with calculations.
Function #5 with 27 calculations of Airfoil Points and output of x,y,z points. This would use MoI Factories or Factory.
Function #6 with 13 calculations of Rail Points and output of x,y,z points, for MoI Factory/ Factories.

Think I'll give javascript, for MoI script, a try in the next few days.