The CAA came in all guns blazing for every flying machine to be fitted with mandatory Mode S. Just a few short month ago they accepted it was an impossible dream for a host of reasons.
Is there any interest in a fitting a cheaper system such as Fl..m to all types of light aircraft?
About 30 yrs ago students at Cranfield uni experimented with a system that detected aircraft strobe lights. It was basically sphere covered with photelectic cells that detected the flash from the strobe lights.
This info was then displayed on the flight deck.
With the vast development in electronics since the would this be a possibility?