"The results of this simulator are right-on with the results I've gotten with every FAT and F2K machine I have. It's amazing!"
     -- Ron Toms, Inventor of the FAT and F2K designs.

"These are MUCH more complicated machines to model than a traditional treb."
     -- Les Scholz, Programmer and engineer.

Q: What's the best way to learn about the FAT?

A: Build a lot of them!

What's the easiest, cheapest and safest way to test your theories about FATs and F2K machines? Use the simulator!

This is the one and only, authorized and approved, FAT and F2K simulator you can get!

Engineered and programmed by Les Scholz, this simulator models BOTH the FAT and F2K type trebuchets in all their complexity and beauty. It's like getting two simulators for the price of one! You can add the effects of air drag, friction, do stress analysis on your arm, sling, pin, axle... and work out all the finer details of your trebuchet design before you even buy a single piece of lumber. It also includes a metric conversion calculator, release pin optimizer, and you can save hundreds of design parameters and simply load them from disk to work on different projects at the click of a button.

BUY NOW!     Only $24.95. or get the demo version $FREE *** Also available on CD-Rom with Trebuchet Kit Plans! *** Download the PDF user manual here. In basic mode, just plug in the lengths for your arm, tracks, wheels, sling, etc. until you're AMAZED with the performance you get. Then click into advanced mode to fine tune things like the weight and shape of your arm, the thickness of your axle, aerodynamics, friction, How long and what angle should your pin be? What are the stresses? With over 16 graphs of data, you'll know exactly what your treb should be able to do. Graphs include counterweigh velocity, pivot load, trajectory, projectile acceleration, sling tension/time, finger load, arm stresses, and lots more! Then watch an animation of your design in action. Either smooth motion or strobe mode reveals the timing of your release point and arm position. You'll actually be able to see the elliptical curve of the arm tip and how it affects the sling release. Can this machine release the load with the arm perfectly perpendicular? Or beyond perpendicular? And how does that affect the performance? Now you'll know!

BUY NOW!

Only $24.95

Read the FAQ!