英文字典,中文字典,查询,解释,review.php


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       


安装中文字典英文字典辞典工具!

安装中文字典英文字典辞典工具!










  • What are the advantages and disadvantages of autogyro aircraft?
    Aviation statistics show gyrocopters to be more dangerous than most recreational aircraft An Australian Transport Safety Bureau report on accidents between 2004 and 2013 found half of all gyrocopter accidents to be fatal, with the aircraft responsible for the worst fatality rate per hours flown
  • What are the uses of gyroplanes? - Aviation Stack Exchange
    The gyrocopter is cheap, versatile, and as easy to operate as an off-road motorcycle What can it be used for? For everyone's daily ride to work The owner of Quobba Station in Western Australia owns a gyrocopter and uses it to patrol his land, and to muster the sheep and goats when time comes to sell them
  • Is it possible to have dual contra-rotating rotors on a gyrocopter or . . .
    Look at rc twin rotor gyros They perform quite well Instead of having articulated blades they are fixed and counter rotating at the end of opposing booms The rotors are shorter and spin much faster on ground roll for takeoff
  • How to convert a PPL (Gyrocopter) to a PPL (Helicopter)?
    In the US, Gyroplane and Helicopter are class ratings within the Rotorcraft category FAR 61 63(c) specifies that the addition of a class rating does not require any specific amount of flight training time, and no more total experience than would be required for the gyroplane rating you already have, so the question is moot
  • Would an Autogryro Gyrocopter with wings be safer than a normal . . .
    Typically Autogyros experiencing quot;negative Gs quot; will crash I wonder if an Autogyro with wings would work as a fail safe for this situation? Would it allow the pilot to recover assuming this
  • How much could human power add to the endurance of an electric gyrocopter?
    One has to look at the total energy requirement of the gyrocopter In this instance it is a 80 kW powerplant A human power plant would be incapable of a sustained output of more than 1kW, therefore I would conclude that the impact of augmented human sourced power would be less than 1% and therefore insignificant
  • theory - Can a gyro-copter soar? - Aviation Stack Exchange
    $\begingroup$ True, the updraft will be be identically the inflow to the rotor (less the gyrocopter's horizontal velocity vector), but, if you model the updraft as a sharp-edged vertical gust, won't it result in a local change in angle of attack at the rotor? That change will necessarily be "softened" by the aircraft vertical velocity (since
  • How to calculate the amount of thrust of a autogyro during auto . . .
    When a autogyro gyrocopter is in a horizontal steady flight the rotor should be able to provide enough thrust using the auto rotation principle if the horizontal speed can be regulated by the vertical propeller I was wondering how the amount of thrust provided by the main rotor of a autogyro during auto rotation can be calculated


















中文字典-英文字典  2005-2009