"Don W" wrote

I'd also like it to have a built in
ballistic chute system which jettisons the engine (to its own chute)
before deployment.

Welcome, Don!

Wow, you really want to jump in, huh? g

Realistically, getting the engine out sounds like such a complicated task,
as to be un-do-able in a plane of this size, and probably even in a much
larger size.

You have to sever the fuel lines/fuel system, in a running engine, and that
sounds like fire.

You have to get the engine mounts separated, and that sounds like explosive
bolts in a hot environment, and they need to be 110% reliable. Problems
there.

The engine has to have all of the other systems separate cleanly, and the
cowl get out of the way. Reliability problems, it would seem to me, since
they also have to be assured to not separate during normal operations.

How would it jettison? Rocket type of things, like an ejection seat? That
is a pretty volatile system, and it would have to put up with the difficult
environment of the engine compartment.

There is certainly more to consider, but that is enough for now, I think.

I have to ask, what is the payoff of having the engine separate? Less
weight for the chute? OK, but chutes can be made bigger to handle all of
the weight. Not having the heavy engine to worry about it shifting into the
cockpit during a parachute landing? OK, but the landing should be at a
relatively low speed, and that should not be a big concern. Cirrus seems to
have a pretty big engine, and I have not heard of any engine/cockpit
interactions that were a problem.

I think if you want a challenge to work on, look for something else. The
engine needs to stay right where it was put, IMHO. Work on a chute for the
bigger, heavier plane, perhaps.
--
Jim in NC