I've been on a flapless landing on a flight from Salt Lake into Seattle.
We flew around Seattle for a long time, I assume to burn as much fuel as possible, before the pilot attempted the landing.
He informed us what was going on early on, which was an awesome thing to do.
On the way down he explained his process and that we weren't at risk of harm (true or not, it helped us).
He then told us that there would be some "extra equipment" along the runway when we landed.
That was code for "lots of firetrucks and ambulances." We came in FAST.
The flaps stayed flat, but we stopped eventually.
It was pretty cool.
What a wonderful pilot.
It's neat to finally see one from outside the aircraft.