With the introduction of these functions, AutoTURN 5.1 included the ability to set the ratio of front to rear axle steering. The vehicle library file has been changed to a searchable database with international vehicle standards.
![autoturn 4.0 autoturn 4.0](https://images-na.ssl-images-amazon.com/images/I/61O-cz7dh2L._SL1000_.jpg)
Tools were also built in that enabled the user to simulate maneuvers without guidelines. The change in the interface included a new toolbar. A significant change in interface and functionality was necessary to take many new properties into account.
![autoturn 4.0 autoturn 4.0](https://images-na.ssl-images-amazon.com/images/I/61kDqithbxL._AC_SL1000_.jpg)
In addition to many improvements, AutoTURN 4.0 included expanded international vehicle libraries. It was the first version in different languages. In 2000 AutoTURN 4.0 appeared, which could now be used internationally.Simulations were only possible on pre-drawn guidelines. In addition to other improvements, AutoTURN 3.0 allowed the user to play animations of simultaneous simulations of two vehicles moving forward and backward.
#Autoturn 4.0 software#
(This supplement came out in 1995 as standalone software with the name AutoTURN Aircraft). This version contained extended vehicle libraries and an addition with aircraft. AutoTURN version 3.0 contained many upgrades.
![autoturn 4.0 autoturn 4.0](https://images-na.ssl-images-amazon.com/images/I/61eYQs59juL._AC_SL1200_.jpg)
The vehicle library, which was included for the simulation and analysis of towing curves, was limited and only allowed simulations of forward maneuvers. AutoTURN 2.0 was released in 1992 and was the first version compatible with Bentley Systems MicroStation Unix.The first version of AutoTURN ran on Autodesk's AutoCAD version 9. AutoTURN was developed in 1991 by Milton Carrasco, who completed this practical application as a thesis at the University of Calgary.