Thanks Mike,
Paul Hare has informed me that the ‘storage’ boxes were round, but if they were used to dispense the darts remains a moot point.
However, I have a copy of the photo of 3034. If you look closely, the boxes – which appear to be partially in the fuselage and set at an angle – look to be rounded.
I do not have the Air Enthusiast article. Any chance you could scan the photos you mention?
Cheers
Ian