PPRuNe Forums - Search Results

Search: Posts Made By: Genghis the Engineer

Showing results 1 to 5 of 5
Search took 0.00 seconds.

Forum: Professional Pilot Training (includes ground studies)

11th Aug 2017, 17:42

Replies: 24

Can an airliner break sound barrier with an extreme tailwind?

Views: 6,002

Posted By Genghis the Engineer

Oh +TS let us not start on the use of V without a...

Oh +TS let us not start on the use of V without a qualifier!

Forum: Professional Pilot Training (includes ground studies)

11th Aug 2017, 17:39

Replies: 24

Can an airliner break sound barrier with an extreme tailwind?

Views: 6,002

Posted By Genghis the Engineer

Both in fact, they are sufficiently different in...

Both in fact, they are sufficiently different in value that using the same letter doesn't seem to cause too many problems.

Forum: Professional Pilot Training (includes ground studies)

11th Aug 2017, 10:03

Replies: 24

Can an airliner break sound barrier with an extreme tailwind?

Views: 6,002

Posted By Genghis the Engineer

As I did my BEng, PhD and ETPS before my CPL, I...

As I did my BEng, PhD and ETPS before my CPL, I may have just mentally mapped this bit of terminology to the technically correct "c" used everywhere else to my CPL groundschool notes without noticing...

Forum: Professional Pilot Training (includes ground studies)

9th Aug 2017, 17:04

Replies: 24

Can an airliner break sound barrier with an extreme tailwind?

Views: 6,002

Posted By Genghis the Engineer

Speed of sound is relative to the motion of the...

Speed of sound is relative to the motion of the medium through which the sound is passing, not like speed of light which is an absolute. This is because c is based upon transmission of energy...

Forum: Professional Pilot Training (includes ground studies)

9th Aug 2017, 16:20

Replies: 24

Can an airliner break sound barrier with an extreme tailwind?

Views: 6,002

Posted By Genghis the Engineer

Because of the tailwind. The speed of the...

Because of the tailwind. The speed of the aeroplane that matters in terms of Mach number is the speed through the parcel of air within which it is flying that that time, not the groundspeed.

And...

Showing results 1 to 5 of 5