Friend of mines father had a cub. Half moon bay has an emergency strip for SFO. With the sock straight down the runway he took 45 minutes to fly from one end to the other
When I did my PPL in 1963, I flew J3's, PA11's, and when available the school's 1 Luscombe 8E. The J3 was fun - when the wind was strong enough, you could take off, climb to circuit height, fly backwards down the runway, then descend to the threshold and land. Only when the CFI wasn't watching!