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Aircraft Speeds  
User currently offlineChi-town From United States of America, joined Sep 2000, 971 posts, RR: 5
Posted (13 years 8 months 23 hours ago) and read 1002 times:

Can anyone tell me how to convert knots into miles per hour. (mph)

thanks

7 replies: All unread, jump to last
 
User currently offlineHeavyCapt From United States of America, joined Jan 2001, 62 posts, RR: 0
Reply 1, posted (13 years 8 months 23 hours ago) and read 974 times:

multiply knots by 1.15 and you'll have mph
ex: 100 (kts) X 1.15 = 115 (mph)

Brock "useacalculatororane6b" Mandrake


User currently offlineWestern737 From United States of America, joined May 2000, 489 posts, RR: 0
Reply 2, posted (13 years 8 months 13 hours ago) and read 952 times:

What about how to convert Mach into miles per hour (MPH)?



User currently offlineTop Gun From Canada, joined May 1999, 101 posts, RR: 2
Reply 3, posted (13 years 8 months 13 hours ago) and read 948 times:

To convert Knots or MPH into Mach you need more info such as the ambiant temp and so forth. There is no straight conversion.

User currently offlineAmbasaid From , joined Dec 1969, posts, RR:
Reply 4, posted (13 years 8 months 7 hours ago) and read 932 times:

Definitely not as easy.....

TAS = MACH x 38.968 square root Temperature.

Temperature is in degrees kelvin. TAS is in Knots.

Or you could just use the good old Jeppesen E6 computer.


User currently offlineWestern737 From United States of America, joined May 2000, 489 posts, RR: 0
Reply 5, posted (13 years 8 months 7 hours ago) and read 921 times:

Gosh... That's pretty tough to understand the formula on conversation of mach into MPH. Boy, those chemist or physicist or any scientists making it quite difficult for normal like us to do the simple mathematics to figure it out.

User currently offlineNorseman From United States of America, joined Feb 2001, 41 posts, RR: 0
Reply 6, posted (13 years 8 months 6 hours ago) and read 919 times:

Go buy a cheap E-6b flight computer. It will do it for you in a few seconds.

User currently offlineAs16 From , joined Dec 1969, posts, RR:
Reply 7, posted (13 years 8 months 4 hours ago) and read 913 times:

The speed of sound decreases as altitude increases.
Concorde flys at mach2, however this is at 55,000 feet, much higher than a typical 33,000 ft cruising altitude, where some passenger aircraft may fly at, say, mach 0.8.
Try this link...
http://hyperphysics.phy-astr.gsu.edu/hbase/hframe.html
look for speed of sound in menu on left, near to the bottom.


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