Ukrainian inventor Vladimir Tatarenko has added a new concept plane to the pile: This one has a cabin that detaches from the cockpit when the flight goes belly-up.

The idea is that in the event of an emergency, the pilots could push a button that would allow the cabin — complete with passengers and cargo — to separate from the rest of the plane and float down to safety with the help of attached parachutes.

The pilots themselves, it seems, are out of luck.

For starters, the cost of building and testing this new aircraft would be, undoubtedly, extravagant.

Airlines already spend between $100 million and $350 million per aircraft as is — and that’s without the yearly maintenance costs.

They would have little motivation to replace a trustworthy fleet with an untested concept, especially as plane crash fatalities are exceedingly rare.

According to Airline association IATA, in 2014 (a tragic year for air flight), out of the 3.3 billion passengers that traveled, there were a total 641 fatalities.

This is actually an astoundingly high safety rate. Perhaps the money would be better spent addressing heart disease, which is responsible for over 610,000 deaths yearly in the U.S. alone?