The biannual Singapore Airshow, Asia's biggest aerospace and defence exhibition, saw trade deals fall to $12.7bn (£8.9bn) this year compared with public takings of $32bn in 2014.
Organisers
said the smaller amount was because more transactions are being made
privately due to the "changing nature of business deals".
There were 11 announced deals, with another 40 made at undisclosed values.
The airshow launched on Wednesday and opens to the public this weekend.
