Howto: https://youtu.be/q-g2TynD83U
Takeoff: with half flaps, Vr between 97 ... 139 kias (no faster than that: the nosewheel steering can't handle it).
Note: Don't put gear out at 200 kias -- damage from overspeed!
Landing: with 100% flaps, approach 145 kias, touchdown between 126 ... 139 kias (faster than that is beyond what nosewheel steering can handle).
Slowest landing speed is 97 kias: below that there's trouble with ground effect, see https://qr.ae/pGcdfW
History/Documentary: https://youtu.be/eFOvtC027sw