This older NRS has the strangest D-ring number and placement I've ever seen. It looks like someone was trying to set a record for D-rings per square foot of hypalon.
Does anyone out there in interweb land have any, ANY idea why you'd put D-rings on a boat like this? Is it an old marine lifeboat? Military application done by cost-plus contractor? What was someone thinking?
Or is this just the kind of thing that happens when the rubber repair guy mixes pot and Sta-Bond fumes?
By a conservative estimate it looks like the 11-ft boat's got about 40 D-rings.