Hi, I had a flight to Derby in a Club Cessna 152 that I had not flown before.
On route it needed max throttle to achieve any sort of speed and throttled back it was down to 80 Knots, which I thought could be due to a worn out prop.
Anyway, the approach to landing at Derby was just about Ok, with 60Knots over the fence, then flared to within 3 feet and held off the numbers with no power, still Ok.
However by halfway down the runway with the plane wanting to climb rather than stall, I realised I was running out of runway so decided to let her fly on to the grass at 3/4 way down the runway, and then stepped quite hard on the brakes to slow before the end.
The rest of the days flying was uneventful, but when I asked the engineer if this was a particularly slow 152, that cruised at 75-80 knots, he inspected the ASI and found the tube from the Pitot to the ASI was split.
So my 'Slow Cruise' could have been 100+ knots with that throttle opening, and the landing at Derby was most likely at 80+ knots !