At a recent aviation gathering, the topic of the Boeing 737 MAX came up. I gave my usual spiel about how TI was able to make the Speak & Spell in 1978. Why couldn’t a B737 have had a $1 voice synthesis chip saying “trimming forward” when MCAS was running, potentially prompting pilots to hit the trim interrupt switches much earlier. And why couldn’t the rest of our aircraft have voice warnings instead of simply beeping with different tones for different kinds of problems, e.g., gear not down, approaching a stall, etc.
An airline pilot responded “We lose millions of dollars every year from minor collisions on the ramp. If I buy a car for $20,000 it will come with parking sensors. Why doesn’t a $50 million jet have sensors in the wingtips to warn of a collision?”
I would love to know the answer to this question! It does not seem as though FAA certification would be a huge hassle given that the system won’t be used in flight. The sensors are commercially available from Bosch (parking ultrasonic; rear radar).