Region of reverse command

[Amish RakeFight]

Well, while it is generally true that the region of reverse command falls below L/D max, the technical definition is when the speed drops below the best endurance speed. The best endurnace speed is actually a little slower than the speed found at L/D max. So theoretically, a small range of speed below L/D max actually occurs within the region of normal command.

At any rate, it's important for the student to know that the airplane will require a greater power setting even though the plane is flying slower. This will seem contrary to a student pilot who has flown generally in the region of normal command where a lower airspeed requires a corresponding lower power setting.

 

[paid4training]

Thank you professor... :beer:

 

[Kream926]

this is what i demo for new students.....

as a joke i first will start out with a bet that it will require more power to fly slower. first i will draw the graph and then show them that at roughly 2000rpm i will be ably to fly at 2 airspeeds...about 80 and right around 55ish in a warrior. then i take them up and shot them vs1+10 and note the power setting, a/s and alt. then go to vs1+5 with that same power setting, let the airplane stabilize its self and low and behold....we start a slow descent

 

[PDH]

this is what i demo for new students.....

as a joke i first will start out with a bet that it will require more power to fly slower. first i will draw the graph and then show them that at roughly 2000rpm i will be ably to fly at 2 airspeeds...about 80 and right around 55ish in a warrior. then i take them up and shot them vs1+10 and note the power setting, a/s and alt. then go to vs1+5 with that same power setting, let the airplane stabilize its self and low and behold....we start a slow descent

Finally a guy with a total time to post ratio close to 1. Congrats. That should be a rule for everybody. What you said is a good idea. I will try that with my future students (hopefully soon).

 

[Kream926]

i dont see what the post to time ratio has to do with anything but ok....

 

[NoahWerka]

Those of us who are old enough remember getting "behind the power curve". Now we get in the "region of reverse command". From the Airplane Flying Handbook. "If the airspeed is too slow an increase of pitch and the application of full power may only results in an increased sink rate. This occurs when the angle of attack is so great and creating so much drag that the maximum available power cannot overcome it. Generally referred to the region of reverse command, or operating on the back side of the power curve."
:beer:

 

[TRGFlyer2006]

Those of us who are old enough remember getting "behind the power curve". Now we get in the "region of reverse command". From the Airplane Flying Handbook.

I'm Not that old, and have read the AFH, and still have been taught being "behind the power curve".

 

[Alltheway]

Talk about something your flying in denver on a hot day in a fully loaded C-150 comming to land with full flaps and you find yourself sinking abit much on app, so you add some power to adjust but you find you have full power just trying to make a normal decent, can't take the flaps out b/c we all know what happens then so the only thing to do is get ride of that induced drag so you have to lower the nose and now whats there the ground so you crash. the end

 

[Amish RakeFight]

Not worth saying.

 

[midlifeflyer]

I'm Not that old, and have read the AFH, and still have been taught being "behind the power curve".

And it fits much better with the L/D/power graph where the "region of reverse command" is =literally= "behind the power curve."