The National Business Aviation Association estimates that so-called “hangar rash”—accidental ground damage involving business aircraft—can run as high as $150 million per year, industrywide. The damage includes much more than just the cost of repairs, which can run into tens of thousands for even a minor scratch. There is also the cost of fleet downtime and diminution of resale value for an aircraft with damage history. And with composite airframes, damage repairs can run exponentially higher in cost than with traditional aluminum aircraft. All these factors can also cause insurance rates to increase exponentially.
This is a companion discussion topic for the original entry at https://www.avweb.com/aviation-news/hangar-rash-prevention-system-uses-proximity-warning-software