-
  Dear Paul

  Apologies for the last message being rich text, hopefully this time I
  got it
  right?

  Here is a software Link for aircraft design that might be useful to
  rotary
  engine?

  www.oad.aero <http://www.oad.aero/>

  Anyone on the list using or have experience of this?

  Kind regards

  Clive....Gobxoy

  Is that 21 dollars US or 21 thousand dollars US?

  Paul Lamar

 Hey Paul

 If you want to design anything other than a cartoon to play Fight Sim
 games this is the least expensive option they offer.

 This one's $218.83

 *ADS Light * is intended for *the* *pilot-builder* who wants to design
 his own dream plane, *for the student* who is doing a design project for
 his research thesis, *for the interested* who want to understand the
 physics and principles of conceptual aircraft design, *for the pilot
 *who wants to find out about the flight and handling qualities of their
 aircraft, and * for anyone interested in aircraft design.*

 The * algorithms* are the same as for the professional version. The
 modules used to accelerate the design process and to enable a market
 analysis of the product are not included in the package. A limited
 technical support is available

 Mark LaPierre


Mark,  I noticed in their site that they implied you could fly your
design in X-Plane. This is not true. The .obj format in the simulator is
not the same as an .obj file used by others.  You can convert your model
to display it on an X-Plane screen but the flight model which you fly is
created in X-Plane. The performance, speeds, lift vectors and all sorts
of flight data can be turned on and displayed on screen real time. The
data can be saved in digital format so you can adjust flight surfaces,
Cg, HP, prop, control surfaces a step at a time and compare the results.
Don't let the $49 price fool you. This is a well developed serious
design tool which fortunately made a decent game and is used for pilot
flight training simulators which has brought the price down. The
fusalogue needs a .bmp image (or .png) of the side profile and top view
to guide in creating the 3d part. The  wings and control surfaces and
airfoils are simple to specify and apply. This program is much more
accurate than an RC model to test a new design and major changes can be
made in minutes. The only thing I don't like is that disk 1 has to be in
the drive to launch the program on later versions. My original version
did not have this.There is a huge library of global scenery and airports
which don't need installed to use X-Plane as a tool. I just fly around
Florida with the rest of the planet as water.

george grimes