984
xkcd #2862: Typical Seating Chart
(imgs.xkcd.com)
Alt text:
Now that airlines have started adding wheel locks to their drink carts, less than half of flights have one accidentally fall out through the hole.
They're weight-limited rather than space-limited
So they're carry-on only seats with no extra baggage?
Putting your luggage on the main plain incentivises you to protect it.
They're operated by Ryanair