รวยกันทั่วหน้าให้รวย2งวดซ้อน"เจ้าแม่ตะเคียนจำปาทอง"งวดนี้โผล่อีก3ตัว#16/5/62
During the Private Pilot course a lot of students find the most difficult exercise to be the forward transition. Just to clarify if we talk about transition in a helicopter it is the phase between the hover and starting a climb or from a descend back to hover flight. Let's start off by looking at one aerodynamic aspect: Translational lift: This is the result of wind blowing over the disc or the helicopter moving forward (wind or forward movement between 12 to 16 knots) causing a reduction in the induced flow passing ...
from: http://ezinearticles.com/?Helicopter-Forward-Transition&id=1772166
