Acrobatics: Tips and Help.

       Please practice all new maneuvers, 7 mistakes high. 

                                                                                                

     Here are a couple maneuvers and one example of ways to do them

     Most of these maneuvers can be varied in many different ways and combinations of them can be formed. 
     Your planes reactions to these inputs will vary depending on power, throw and CG.
 

     Knife edge spin 
     From level flight, bring the plane to a stall, go to full down elevator, full left aileron and full left rudder. The
     speed of the spin can be varied with power.


     Flat inverted spin 
     From level inverted flight, bring the plane to a stall, go to full right rudder, full left aileron and then once the
     plane has started spinning, full down elevator. This maneuver is most graceful with the motor at idle. 
     The above to maneuvers can be combined to go from a Knife Edge Spin to a Flat inverted spin by
     entering the KES and then going to full opposite rudder and going to idle on the motor.
 

     The Haig Shuffle 
     This is as close to a true Lomcevac ( I don't know haw to spell this word ) as you can get with a model.
     This is not from me but a full scale guy who explained that the true Lomcevac is done with the combination
     of the control surfaces and the gyroscopic effect of the propeller disk, on models we don't have the mass
     in the prop disk so we cant use it. That's what some say anyway. There are also many variations on the
     Lomcevac, so start with this and add some variance of your own. 
     So, pull to 45 degrees, go to full left rudder, full left ailerons and full down elevator generally use half to
     three-quarter throttle. The plane should flip end over end several times. 
     This maneuver can be exited into a torque roll which look's great to spectators. A knife edge exit can also
     be used.


     Inverted tail dragger 
     This maneuver is best done on a flat grass runway, paved surfaces or bumps are out. It is very hard to
     practice and can be sort of costly. Approach the runway inverted at a speed that will give the plane a lot of
     angle of attack. Control the planes altitude with the throttle. As the rudder touches the ground apply a
     couple clicks of throttle so the nose doesn't drop. It is important to remember that during the time the
     rudder is in contact with the ground that the elevator is not going to work in a way that will provide pitch to
     clime, to gain altitude USE THE THROTTLE. 
     Most of the maneuvers above are of the hotdog variety and relatively easy to do. The one's that are a lot
     harder to do well are the rolling circles and loops.

 
     Inverted tail dragger 
     This maneuver is best done on a flat grass runway, paved surfaces or bumps are out. It is very hard to
     practice and can be sort of costly. Approach the runway inverted at a speed that will give the plane a lot of
     angle of attack. Control the planes altitude with the throttle. As the rudder touches the ground apply a
     couple clicks of throttle so the nose doesn't drop. It is important to remember that during the time the
     rudder is in contact with the ground that the elevator is not going to work in a way that will provide pitch to
     clime, to gain altitude USE THE THROTTLE. 

     Most of the maneuvers above are of the hotdog variety and relatively easy to do. The one's that are a lot
     harder to do well are the rolling circles and loops.


     There are a wonderful variety of these,
     Single roll. 
     Multiple roll. 
     Varied roll rate. 
     Roll direction changes. 
     Hesitation. 
     Snapping circles. 
     Rolling with snaps. 
     Rolling vertical figure 8ts with varied rates and direction changes. 
     The list goes on.

 

     These are maneuvers that some consider, worth the effort to learn. 
     If you haven't done this before. 
     The basic rolling circle is accomplished by holding a constant roll rate, then timing the input of the rudder
     and elevator to cause the plane to go in a circle with out l losing or gaining altitude.

     A good thing to practice is slow roll's, the rolling circle is just a slow roll in a circle.

     Happy Flying J