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.
How to do Abdominal Hip Raises. Abdominal hip raises are a great exercise that work the abdominal and lower back muscles, as well as the hamstring and gluteous muscles. This exercise is not only good for people who are trying to tone these zones, but also for those who are interested in weight loss. About Abdominal Hip Raises Abdominal hip raises are a great exercise that should be included in your workout, regardless of current strength or skill level. This exercise is beneficial not only in that it can tone and strengthen the muscles of the lower back as well as the abdominal, glute and hamstring muscles, but can also help to stabilize this part of the body.