Light plane crash, Serpentine airfield, near Perth, WA.

[Garfly]

Does the IAS need to be 20% more even if the wing is unloaded?

 

[facthunter]

IF you unload the wing, the drag is substantially reduced. If you are slow (short of energy) you FIX that by adding power (lots) or losing height (dive) or a combination, depending on your situation.   The wings are the only way that maximum FORCE is applied to the plane to make it turn fast. Extra lift comes at the price of extra drag.. Pitch doesn't give a direct indication of angle of attack of the wings. Your method of adjusting the AoA is by the elevators. Nev

[Garfly]

I guess I was trying to get this part of turning theory straight:

 

 

"Every basic flying handbook, including the Pilot’s Handbook of Aeronautical Knowledge, includes a diagram that shows the exponential increase in stall speed associated with bank angle. But bank angle itself isn’t the culprit. As the notes—too often overlooked—for the diagram point out, the graph is predicated on a level turn, and it is load factor that drives the increase in stall speed.

To confirm this point, trim your airplane for wings-level flight at the final approach speed recommended in the airplane flight manual. Using only a couple of fingers on the yoke or stick, smoothly roll into a bank of at least 30 degrees. Don’t pull or push. The airplane doesn’t stall—or even nibble at the stall—unless you apply back-pressure on the yoke or stick. Instead, the nose drops, and the airplane, trying to maintain its trimmed speed, enters a descending spiral. To make the wing stall, you must increase the angle of attack by pulling on the yoke or stick, and pulling also would increase the load factor. Recover by reducing angle of attack and rolling the wings level. The nose will come up as the bank shallows. In some airplanes, you might need to hold forward pressure on the elevator control to prevent the nose from rising too aggressively.

It’s important to understand that increasing bank angle alone doesn’t lead to a rapid rise in stall speed."

Source:

THE RIGHT FORMULA: A PRESCRIPTION FOR EFFECTIVE SPIN-AVOIDANCE AND LOSS-OF-CONTROL TRAINING

 

https://www.aopa.org/news-and-media/all-news/2017/november/flight-training-magazine/the-right-formula

[rgmwa]

4 hours ago, Jase T said:

Because there is always someone who can explain it better than i can....

 

https://youtu.be/nWbk3jn0GK4

Wish I could fly with that kind of precision!

[facthunter]

30 degrees of bank doesn't require much extra speed (or lift) but if you double the bank angle you get 8 times the amount of % stall speed increase. By not applying back stick you will not do a level turn.  You will fall out of your level. You also need a speed increase to maintain a safe speed margin over your NEW higher stall speed.  Even using 30 degrees as a bank limit you should be adding power entering a turn and reducing it as you take bank off coming out of it.. It's generally considered to not retrim in the turns hand flying because it's not for long and you are soon back to the condition you left. IF you are on autopilot with altitude hold engaged your airspeed may drop dangerously if you don't add the required power at the appropriate time. or if an engine lost partial power same as when cruising. You have an  airspeed /power relationship. Nev