Homemade Parachute

Shawnzyoo

Ok I am sure the title caught your attention, but it is not for me, it is for my cat, just kidding.
It will actually be for a model rocket I am building.
I would like to design a ram-air parachute to control a descending rocket (toggles will be attached to either servos or linear actuators and controlled via a RC system)
I have been scouring for information about ram-air chute designs but am not having much luck thus far, I was wondering if anyone here knew of some good chute design resources or are very knowledgeable of ram chutes themselves.
Thank You
--Shawn