Fireground Calculator for iPhone

From Engine Company Software:

Fireground Calculator for iPhone can rapidly provide calculations, confirm your estimates, and help you practice your skills, in a fun, and simplified instrument created for fire-fighters. Taking out the guesswork, you can calculate the optimum pound per square inch in just seconds. Start by choosing either a landline, or master stream hose lay. Then select the appropriate nozzle tip, hose width, length, elevation, and any added-on appliances, and voila. The program calculates on the fly to give you the appropriate pump pressure you need for the scenario you are facing. This is a useful, timesaving application for any fire department. You can use it as a training tool for new recruits or out in the field to get it right on the first try, every time. It features wrench icon to set the preference for the maximum PSI, warning alert when you have exceeded maximum PSI, and quick shake reset to return to default settings.