Calculator for all your NAR and Tripoli high powered rocket needs.
Calculator for:
Black powder charges.
Ebay port hole sizes.
Parachute Calculators.
Calculate altitude and delays with various motor to see what will work in your rocket.
Add your rockets to the app to make calculations less tedious.
Keep track of all your flights for a rocket.

If you find any errors or have any motors that are missing please let me know and I will add them.