6th generation engine

[Matej]

Writing the article about the 6th generation fighters I couldnt resist and I made a sketch of my vision of the 6th generation engine

 

[sferrin]

You seem to have left out the flux capacitor.

 

[Nik]

http://www.reactionengines.co.uk/lapcat_scim.html

"This engine is capable of sustained Mach 5 flight whilst achieving an effective exhaust velocity of order 40,900 m/s. In addition the engine has a second operating mode that features a high bypass airflow permitting efficient subsonic flight and moderate take-off noise."
/quote

Yes, this design looks 'familiar but different': It is the cut-down version of SSTO Skylon's Sabre engine, ie minus rocket stuff...

 

[sferrin]

http://www.reactionengines.co.uk/lapcat_scim.html

"This engine is capable of sustained Mach 5 flight whilst achieving an effective exhaust velocity of order 40,900 m/s. In addition the engine has a second operating mode that features a high bypass airflow permitting efficient subsonic flight and moderate take-off noise."
/quote

Yes, this design looks 'familiar but different': It is the cut-down version of SSTO Skylon's Sabre engine, ie minus rocket stuff...

That's gotta be a typo. 40.9km/sec exhaust velocity? Pull the other one.

 

[shockonlip]

OK, from the cool subject, I was attracted into looking at this.

However, on inspection, was the intention humor?

Some seem to think so and others don't.

Trying to clarify.

 

[Matej]

Original post was in the bar, so I think the idea was clear But... the future life of the topic content is sometimes hard to predict.

 

[Simon666]

That's gotta be a typo. 40.9km/sec exhaust velocity? Pull the other one.

A high Isp (10 times higher than hydrogen-oxygen) can also be expressed in a correspondingly higher effective exhaust velocity. Doesn't mean the exhaust is effectively that fast though.

 

[sferrin]

That's gotta be a typo. 40.9km/sec exhaust velocity? Pull the other one.

A high Isp (10 times higher than hydrogen-oxygen) can also be expressed in a correspondingly higher effective exhaust velocity. Doesn't mean the exhaust is effectively that fast though.

"exhaust velocity" is not the same as isp.

 

[Simon666]

"exhaust velocity" is not the same as isp.

Equivalent velocity, sometimes called equivalent exhaust velocity = Isp * g0

http://www.grc.nasa.gov/WWW/K-12/airplane/specimp.html