Hi again, there are many differences in the aircraft we fly, and the C172 has some of the dragiest flaps of any; On 40 degrees they are real stoppers.
We have one aircraft at our field.. Lets call him 'The Green Aircraft' that has a very slow stall speed, so that in a stiff breeze he takes an age doing the last few hundred feet onto the runway. For Take Off he climbs almost vertically at an air-speed of about 35 knots.
It was riverrock that mentioned the 10:1 glide ratio... That is the C172s best ratio at max L/D speed. Either side of that, the glide ratio falls to a lot less, especially into wind.