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Alpha Speed - Whats The History On The Name  
User currently offlineHAWK21M From India, joined Jan 2001, 31679 posts, RR: 56
Posted (8 years 2 weeks 1 day 20 hours ago) and read 3468 times:

Minimum speed Or Alpha.Where did this Name come from.Anything to do with Alpha,Beta,Gamma etc.
regds
MEL


Think of the brighter side!
3 replies: All unread, jump to last
 
User currently offlineBuzz From United States of America, joined Nov 1999, 697 posts, RR: 21
Reply 1, posted (8 years 2 weeks 1 day 20 hours ago) and read 3463 times:

Hi Hawk, Buzz here. I probably don't have enough gray (or white) hair to be the authority on this. Maximum Alpha is the angle of attack the airplane stalls (in un-accelerated flight) and speed is loosely related to angle of attack.
g'day


User currently offlineSlamClick From United States of America, joined Nov 2003, 10062 posts, RR: 68
Reply 2, posted (8 years 2 weeks 1 day 19 hours ago) and read 3453 times:

And I probably don't have enough gray matter but I'll add this: I think the Greek letter 'alpha' is used more or less uniformly by engineers to represent an angle, as 'delta' is used to represent amount of change, amount of difference and so forth. In this case 'alpha' of attack.

I'd welcome correction from my academic superiors.



Happiness is not seeing another trite Ste. Maarten photo all week long.
User currently offlineStarlionblue From Greenland, joined Feb 2004, 17030 posts, RR: 67
Reply 3, posted (8 years 2 weeks 1 day 6 hours ago) and read 3370 times:

Quoting SlamClick (Reply 2):
And I probably don't have enough gray matter but I'll add this: I think the Greek letter 'alpha' is used more or less uniformly by engineers to represent an angle, as 'delta' is used to represent amount of change, amount of difference and so forth. In this case 'alpha' of attac

Indeed. Taking it further, delta is rate of change (first differential, e.g. acceleration), gamma is rate of change of the change (second differential) and theta is rate of change of the change of the change (third differential). Delta, gamma and theta are used a lot by derivatives traders in risk calculate.



"There are no stupid questions, but there are a lot of inquisitive idiots."
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