To Non-Java ALLSTAR Network Website

                                                                                                                                                                        JAVA-capable browser required for graphic-based menus (Exploer 3.0 or Netscape 2.0 or greater)

Please let me remind all of you--this material is copyrighted.  Though partially funded by NASA, it is still a private site.  Therefore, before using our materials in any form, electronic or otherwise, you need to ask permission.
There are two ways to browse the site: (1) use the search button above to find specific materials using keywords; or,
(2) go to specific headings like history, principles or careers at specific levels above and click on the button.
Teachers may go directly to the Teachers' Guide from the For Teachers button above or site browse as in (1) and (2).

FAQnewred.gif (906 bytes)           

What is Thrust?

jet_line.gif (1450 bytes)

THRUST is one of the four forces acting on an aircraft. Thrust (measured in pounds or newtons) provides the velocity required for an aircraft's wings to produce LIFT. Thrust is the force necessary to move the aircraft forward and lift is the force acting in the upward direction required to keep the aircraft aloft. Opposing thrust is DRAG or the force produced by air resistance. The last force is the WEIGHT of the airplane, the downward acting force, and is produced by gravity.

You might have read where the F-15 can accelerate while flying straight up. A F-15E can accomplish this when the weight of the F-15E is less than the 58,200 pounds of thrust produced by the engines (commonly referred to as a thrust-to-weight ratio of greater than 1.0).

Thrust is a measurement of force. Force is addressed by Newton's second law of motion and is represented by the formula

Force = Mass x Acceleration


Send all comments to
1995-2018 ALLSTAR Network. All rights reserved worldwide.

Funded in part by Used with permission from
90th Fighter Squadron
"Dicemen" Aviation
wpe1B.jpg (2191 bytes)

Updated: March 12, 2004