Notar520AC
Topic Author
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Skyhawk- Left Turning Tendancies

Sun Sep 29, 2002 4:22 am

Ok people, my instructor gave me a little homework. He wants me to find and explain the four LEFT turning tendancies for an airplane. I know that one of them is torque, which you have to apply right rudder to compensate from the force of the rotating prop. Does anyone know what the others are? Thanks.

-Notar520AC
BMW - The Ultimate Driving Machine
 
jhooper
Posts: 5560
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RE: Skyhawk- Left Turning Tendancies

Sun Sep 29, 2002 4:30 am

Torque - Propeller rotates one way, plane rotates other way (Newton's 3rd Law)

Spiraling Slipstream - Propwash spirals under the fuselage and strikes the left side of the tail, causing the plane to vear left.

P-Factor - The decending propeller blade has a higher angle of attack to the relative wing, and hence more "lift", causing the right blade to produce more power than the left blade.

Gyroscopic force of the propeller - The propeller acts as a gyroscope, which produces a force 90 degrees from the plane of rotation.

I'm doing this from memory, but I'm pretty sure I got all of them. I'm sure it's fully explained in your training materials; best review that material.
Last year 1,944 New Yorkers saw something and said something.
 
Notar520AC
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RE: Skyhawk- Left Turning Tendancies

Sun Sep 29, 2002 4:42 am

Thank you so much Jhooper for a speedy response! I'm still flipping through my manuals and text to make sure- your assistance is greatly appreciated!!

 Smile/happy/getting dizzy -Notar520AC
BMW - The Ultimate Driving Machine
 
sllevin
Posts: 3312
Joined: Wed Jan 30, 2002 1:57 pm

RE: Skyhawk- Left Turning Tendancies

Sun Sep 29, 2002 5:09 am

I'm glad Jhooper wrote all that  Smile

I don't see that he missed anything.  Smile

Enjoy!
 
Ralgha
Posts: 1589
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RE: Skyhawk- Left Turning Tendancies

Sun Sep 29, 2002 6:01 am

Don't get into the habit of getting your information from here. While Jhooper's response is correct, often the information distributed here is faulty, faulty information can kill you.

 Big thumbs up
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Notar520AC
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RE: Skyhawk- Left Turning Tendancies

Sun Sep 29, 2002 7:14 am

That's why I always double check Ralgha!! Thanks everyone!

:D -Notar520AC
BMW - The Ultimate Driving Machine
 
ThirtyEcho
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Joined: Tue Jan 01, 2002 1:21 am

RE: Skyhawk- Left Turning Tendancies

Sun Sep 29, 2002 8:20 am

Yeah, Ralgha. I'm surprised that nobody has suggested Coriolis Force.
 
dragogoalie
Posts: 1172
Joined: Sun Oct 14, 2001 3:58 pm

RE: Skyhawk- Left Turning Tendancies

Sun Sep 29, 2002 9:04 am

Hey now, no cheating on your homework. We had to look it up in our books, so you should too  Big grin

--dragogoalie-#88--
Formerly known as Jap. Srsly. AUSTRALIA: 2 days!
 
Notar520AC
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RE: Skyhawk- Left Turning Tendancies

Sun Sep 29, 2002 9:55 am

Are you pulling my chain ThirtyEcho?

Dragogoalie- I'm not cheating, I'm just saving time. I'm still flipping through manuals to make sure that information is correct. When you're on my schedule, time is of the essence.
BMW - The Ultimate Driving Machine
 
SkyGuy11
Posts: 532
Joined: Fri Oct 26, 2001 7:09 am

RE: Skyhawk- Left Turning Tendancies

Sun Sep 29, 2002 12:08 pm

"Are you pulling my chain ThirtyEcho?"

Yes, he (or she) is.
.
 
Guest

RE: Skyhawk- Left Turning Tendancies

Sun Sep 29, 2002 2:20 pm

One of these days I will write about the P factor on 747 "classics"...
Hope they got rid of that in "them" 400 series...
(s) Skipper

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