How Does Installing Equipment and a New Seat Affect an Aircraft's Balance?

  • Thread starter Thread starter mike smith1
  • Start date Start date
  • Tags Tags
    Aviation Equipment
mike smith1
Messages
3
Reaction score
0
A 5lb Piece of equipment is installed on a aircraft on a Aircraft 45 inches aft of the C of G. A new Seat is also fitted 60 inches fwd of the C of G, Weighing 3.5 lbs more than the old seat. What is the resultant moment?

I Know its 60-45=15

Im not sure do i have to use the weight for anything? or they asking for more than i need?

the resulant moment is -15 i think.

Still behind the datum.
 
Last edited by a moderator:
Physics news on Phys.org
Since when is 5 lbs. = 3.5 lbs.? This is a simple moment calculation (Hint: think see-saw.)
 
Not sure what You mean... Its a Aircraft not a See saw. Its trying to find the Negative and Positive weight to the C of G. its either -15 or +1.25 Ibs...
 
How do you know how much the old seat weighs>?
 

Thread 'Direction of the magnetic field of an oscillating charge'

Hello everyone, I’m considering a point charge q that oscillates harmonically about the origin along the z-axis, e.g. $$z_{q}(t)= A\sin(wt)$$ In a strongly simplified / quasi-instantaneous approximation I ignore retardation and take the electric field at the position ##r=(x,y,z)## simply to be the “Coulomb field at the charge’s instantaneous position”: $$E(r,t)=\frac{q}{4\pi\varepsilon_{0}}\frac{r-r_{q}(t)}{||r-r_{q}(t)||^{3}}$$ with $$r_{q}(t)=(0,0,z_{q}(t))$$ (I’m aware this isn’t...
View full post »

Thread 'Initial conditions for orbits around a wormhole'

Hi, I had an exam and I completely messed up a problem. Especially one part which was necessary for the rest of the problem. Basically, I have a wormhole metric: $$(ds)^2 = -(dt)^2 + (dr)^2 + (r^2 + b^2)( (d\theta)^2 + sin^2 \theta (d\phi)^2 )$$ Where ##b=1## with an orbit only in the equatorial plane. We also know from the question that the orbit must satisfy this relationship: $$\varepsilon = \frac{1}{2} (\frac{dr}{d\tau})^2 + V_{eff}(r)$$ Ultimately, I was tasked to find the initial...
View full post »

Similar threads

Aircraft weight and balance related math - help needed
Replies
2
Views
5K
Landing forces at aircraft touchdownequations?
Replies
2
Views
7K
Why is the U-2 nicknamed the Dragon Lady?
Replies
4
Views
8K
Do Movies Teach Us Realistic Life Skills?
Replies
1
Views
10K

Hot Threads

Recent Insights

Back
Top