Archive for April 2007
4m Toons alongside 2m Voltij – photo borrowed from Aeromod
I am currently working with Alexis Maréchal from Aeromod and Tom Copp from F3X.com to try to find an economical way to import a few Aeromod Toons aerobatics gliders into the US. If you are interested in getting a Toons, feel free to contact me for more information, cost estimates, etc.
Or: “There’s more than one way to spin a cat”
On the slope and at the airport there is often discussion over what constitutes a ‘snap roll’ and the technique to get an airplane or glider to enter one. There are two common ways of snapping, both using in-spin rudder and up elevator (consider an upright, or inside, snap for now). The difference is in the direction of applied aileron, whether it’s in-spin or out-spin (i.e. cross-controlled). It’s not unusual to hear debate over which one is ““better”, so let’s look at the effects of each. (note: the real answer is “use the one that works the best for your airplane.”)
What is “4 axis” flying?
4 axis flying is, to the best of this writer’s knowledge, another French contribution to the radio controlled soaring world. Most pilots are familiar with the more common 2 and 3 axis concepts, in which the elevator, ailerons and rudder (for 3 axis planes) provide pitch, roll and yaw control of the aircraft. In 4 axis flying, the additional axis of control comes from the use of dynamically controlled flaps or flaperons that allow the pilot to instantly deploy a variable degree of camber or reflex.