View Single Post
Old 09-23-2013 | 03:53 PM
  #1  
mspano85
Gets Weekends Off
 
Joined: Mar 2013
Posts: 215
Likes: 0
Default Need Some Homework Question Help!

Hey Guys,
I'm stuck on a few questions and for some reason I can't seem to even find the answer google searching or clearly defined in my books.

The first one I keep going back and forth.

Increasing speed also

A) increases lift, drag, control surface effectiveness and altitude.
B) decreases altitude.
C) increases lift, drag, and control surface effectiveness.

I know B) is wrong. I'm trying to think logically here for the other two. It's the altitude one that gets me. I think of a car. When I accelerate and increase speed the car will raise. The same thing happens when accelerating down the runway. Since it does increase lift on the wings, it should increase altitude, correct? Or is that just the torque increasing the altitude?

The second question is about axis. I answered all my other axis questions fine but this one pertains to the center pressure of a wing and I'm not comprehending it on my own. Maybe you all can enlighten me.

The center of pressure of a wing causes the aircraft to rotate around the _____________ axis and affects the _________________ stability.

A) longitudinal / lateral
B) lateral / lateral
C) lateral / longitudinal

I think A) is wrong. Lateral Axis of flight would be wingtip to wingtip, pitch, whereas longitudinal would is tip to tail. I'm lost on which stability it would affect?

Thanks for any help guys. I appreciate the answers. My apologies if this is "Airplane 101."
Reply