this page are various items available for download.
Aircraft Simulation (AutoLISP format - 2 kb)
is a simple 2D simulation in AutoLISP format. It displays
the dynamic response of a Macchi Jet Trainer due to a
step input of thrust or flight path angle. This
simulation will require either AutoCAD or IntelliCAD in
order to be able to be run. It uses these programs to
generate a graphical output, and is written in the
AutoLISP macro language. This is the function described
in our MultiCAD article (October 2000 issue) introducing
IS28 Glider model (DXF format - 39 kb)
3D model is representative of an IS-28 B2 sailplane. The
model was created for testing with a Computational Fluid
Dynamics program. It has been constructed with a view to
being representative of the actual aircraft while having
a minimal number of faces. The entire model comprises
less than 2500 facets.
3DP0 (10 Kb)
is an Autolisp function (for use with AutoCAD Release 12
or later) to reconstruct a 3D point from two 2D points
defined on separate 2D drawing views. It is intended as a
tool for quickly creating 3D points when a 2D plan and
elevation drawing is available. It is particularly useful
for constructing complex 3D curves.