So the Dutch roll, now called coordination roll, quickly drives home the need to lead rudder to be coordinated. Coordinated is not equal application of aileron and rudder, it requires we lead rudder to prevent adverse yaw in the opposite direction and then come in with aileron for the bank. Rudder pulls aileron around. That is why you hear me yelling, "push the nose around." The Dutch roll also teaches us a lot about the capabilities of the rudder as the anti-turn control. While the Dutch roll to 45 degree bank is a lot more exaggerated than walking the rudders to maintain wings level on short final, the principal is the same. If we maintain the target between our legs with rudder, the wing will be stabilized level. So Dutch roll is a coordinated way to maintain the centerline extended and keep the wing level. So if you are a wing wagger instead of a tail wagger (rudder only wing leveller,) Dutch rolls is the proper and coordinated way to do that. Try ol contact's rudder only centerline holder and wing leveller(walk the rudders) technique. You will find it to be easier and more comfortable.
While we are at 500,' we might a well practice some energy management turns. I hope a pipeline pilot will post us some patrol video here, because it is difficult to teach the concept that all anticipated turns or planned turns can be fully law of the roller coaster energy management turns. For excellent 90 and 180 degree turns to target (usually section lines), see Energy Management Turns with soyAnarchisco and CFOT's videos on this site.
So again, is 500' an unsafe altitude to practice energy management turns? If we are afraid of the 1 g safety turn, why are we pulling back on the elevator to load the wing in climbing and level turns in the pattern. Why aren't those more dangerous turns practiced at stall recovery altitude?
First we have to understand the principals of the energy management turn, the laws of the roller coaster. Without zoom reserve in the form of cruise or as fast as possible airspeed, we do not pull back on the elevator. If we are already at Vy because of DA or load or just being stupid, we simply allow the nose to go down naturally. We only pull back on the elevator with zoom reserve airspeed and with the wings level. Yes, crop dusters will violate this wings level part occasionally and partially. We will get to that safe point with practice, but let's stick with the wings level for the go up part of the law of the roller coaster.
Second we have a muscle memory default in our brain that pulling back on the elevator wings level is temporary. So now we have speed (OK) and wings level (OK) and need to turn up there a bit (OK) and we are not, I say again we are not, going to keep pulling on this yoke. As soon as we begin the bank, we release the back pressure on the yoke to unload the wing back to 1 g.
Third we are not going to just stay in the bank for some exercise or turn to heading purpose. We are turning to a near target, usually the pipeline right of way going in the new direction or the next segment of the airport pattern or some target. As the crop duster knows, after 180 degrees of turn, the nose is well down and the airspeed is well up and the earth is coming up pretty fast now.
Fourth we are going to level the wing before we pull on the yoke to first climb using the airspeed gained in the nose down safety turn. To pull up with the wing in a bank would create the graveyard spiral effect. To keep the wing down going into the field, if a crop row is the target, would chance catching the wire or tree with the down wing.
Fifth we are going to trade the extra airspeed of the dive in the turn for altitude. While the law of the roller coaster dislikes the waste of the extra airspeed of cruise over a slower speed that would decrease the radius of the turn (pitch up wings level to start), it also dislikes the waste of the extra potential energy of the wings level pitch up and it dislikes the waste of the dive speed but wants to use it to return to near original altitude. Remember Wolfgang's airspeed is altitude, altitude is airspeed, airspeed is altitude...the law of the roller coaster.
Learn and practice the safety turn. When it becomes the default contact flying turn, and we still remember the limited bank level turn for IMC, we are truly managing energy in every paradyme of flight. Yes limited bank level turns were awkward when Doolittle first got us under the hood and later integrated instrument awkwardness crept in when we began to attempt safe integration of contact flying skills with instrument flying skills. As a high altitude concept, integration works well. It is a very dangerous maneuvering flight concept, especially when it totally precludes stick and rudder flying skills. There was a time between Doolittle and the PTS when we old guys first learned to fly contact and then learned to fly instrument. That was a low altitude concept for contact flying and a high altitude concept for instrument flying.
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