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Forum: Tech Log

10th Feb 2008, 12:40

Replies: 37

Its not rocket science...or is it?

Views: 5,497

Posted By Keith.Williams.

By Newton's second law we have Thrust = Mass x...

By Newton's second law we have Thrust = Mass x Acceleration.

If we take a mass of air and exert a force on it such that we accelerate in rearwards, we will get forward thrust.

The amount of...

Forum: Tech Log

10th Feb 2008, 08:17

Replies: 37

Its not rocket science...or is it?

Views: 5,497

Posted By Keith.Williams.

No, I did not say that "everything aft of the...

No, I did not say that "everything aft of the turbine is a net drag force". If you look carefully you will see that the RR figures include the statement that, "Exhaust unit (imediately aft of the...

Forum: Tech Log

9th Feb 2008, 11:56

Replies: 37

Its not rocket science...or is it?

Views: 5,497

Posted By Keith.Williams.

Many text books give diagrams to illustrate where...

Many text books give diagrams to illustrate where the thrust is produced.

In their book "The Jet Engine" Rolls Royce give the follwing figures for "a typical single-spool axial flow engine".
...

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