Report Abuse. To get airborne, a Boeing 737 needs to reach a speed of 140 knots (its rotate speed or Vr). For landings, I usually maintain 150knots (MS-FlightSimulator). These speeds really depend on an airplane's design, weight, wing shape and size, wind/weather factors, etc.Fulani Filot Â· 9 years ago.o get airborne, a Boeing 737 needs to reach a speed of 140 knots (its rotate speed or Vr). For landings, I usually maintain 150knots (MS-FlightSimulator).
The Muscles Worked During Calf Raises. Calf raises target the muscles on the back of your lower legs. Photo Credit fatchoi/iStock/Getty Images. The calf raise exercise targets the muscles on the back of your lower legs that facilitate plantar flexion, or ankle extension. These muscles contract to lift your heels off the floor during the upward-movement phase of the exercise, and to control the speed of movement during the downward movement phase.
Lateral Raise. The dumbbell lateral raise is performed from a standing or seated position. Hold a dumbbell in each hand with your arms straight at your sides. Turn palms to face your body. If standing, position your feet hip-distance apart. If seated, keep your back straight and your feet flat on the floor. Contract your stomach by pulling your navel toward your spine to provide core stability. Keep a slight bend in your elbow as you exhale and raise the dumbbells out to the sides.