RigCalc for smart phones and on the web

D2 Flying Effects are riggers that fly people and things.  They are also pretty savy programmers, too.  At their web site you can find RigCalc and a bevy of other software tools for making life on the fly rail easier.

They also have a Rigging Math Primer online at: www.d2flying.com/riggingmath/

There are a bunch of really handy online calculators at: www.d2flying.com/RigCalc.html

The smart phone app looks like this (2 of 4 screens shown):

A really handy app for stackin' steel bricks.

If they add a batten loading calculator to get the needed weight it will be great.

Just $9.99.  Where to get it: http://www.androidzoom.com/android_applications/productivity/rigcalc_qmvr.html

Also available for the iPhone and Blackberry with links at: http://www.rigcalc.com/
Other related blog entries:

http://theatresafetyblog.blogspot.com/2010/03/in-god-we-trussed-all-others-pay-499.html
http://theatresafetyblog.blogspot.com/2009/12/jr-clancy-releases-irigging-application.html
http://theatresafetyblog.blogspot.com/2010/06/arena-rigging-app-for-iphone.html