• Support PF! Buy your school textbooks, materials and every day products Here!

EASY Flight/Aerospace questions

  • Thread starter wzzp144
  • Start date
  • #1
6
0
EASY Flight/Aerospace questions!!

Here is a picture of my question.

http://tinypic.com/view.php?pic=158rvt&s=7

On the left is the Altitude (ft x 10^3) scale and on the bottom is Years. In the graph as different planes at different years.

Notice from 1900-1970 the altitude the the aircraft increase. Then from 1970s -present the altitude decreases. Why does it decreaase?

These are combat planes.
 

Answers and Replies

  • #2
272
0


The altitude values are actually service ceilings

Not all of them are fighters. Some of them such as the U-2 were reconnaissance aircraft, and thus the service ceiling was incredibly high to escape any air attacks by fighters, etc...

Also, a high service ceiling is not something easily attained. It is a function of engine power, efficiency, fuel burn, and a host of other factors.

There are a lot of other reasons why service ceilings would decrease, FAA regulations for instance (such as requesting airspace at certain altitudes), there are not a lot of reasons why fighters need to go to such high altitudes. I could go on forever, so I shall stop here.
 

Related Threads on EASY Flight/Aerospace questions

Replies
0
Views
1K
Replies
3
Views
1K
  • Last Post
Replies
1
Views
2K
Replies
3
Views
1K
  • Last Post
Replies
3
Views
902
  • Last Post
Replies
8
Views
2K
Replies
1
Views
2K
  • Last Post
Replies
2
Views
12K
  • Last Post
Replies
6
Views
4K
  • Last Post
Replies
1
Views
2K
Top