It’s 12.5 feet per second to get my plane airborne on a cold day air is more dense, lift easier.
I was just telling Mrs LC that yesterday when she has a near-hit attempting to fly up onto my head. She needed a longer run to get airborne due to the hot air, it’s less dense thus doesn’t provide as much lift.
Her reply: Bukbukbuk baaaawk…..
Rough translation- Hooman you cheated you moved at the last minute!
Mwahahahaha - yep I can move fast for an old gal!