[Dantilla]

A parachute is a good idea, but there are some downsides.

Controlling weight is critical with airplanes, and adding a chute system to an airplane that was not designed for it will increase its empty weight considerably- possibly turning a four-seat airplane into a three-seater, or at least severely limiting how much baggage can be carried.

If the chute is installed in the same position as the Cirrus, behind the cabin, it will make the airplane tail-heavy. Even if the airplane is below its maximum weight, it may be difficult to keep the airplane within its legal CG (Center of Gravity) range. Airplanes come with detailed charts to calculate exact weight and balance to insure normal flight characteristics. Flying nose-heavy or tail-heavy will turn you into a test pilot!

While parachutes are available for several airplanes now, they are not popular outside the Cirrus, that comes with them from the factory.