popaviator
Well-Known Member
Hi All, I was wondering why in the DA42 Vy is 79 while Vx is 86? To me it would be more realistic to have Vx at a lower airspeed to correlate a higher pitch attitude.
DA42
- Thread starter popaviator
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moxiepilot
Well-Known Member
While you probably want more specific knowledge, it all comes down to the drag curve and respective time or distance. Just like explaining it to one of your students, that's the simple explination. Now I know you want the engineer explination... 
Fly_Unity
Well-Known Member
Probably because Vx is lower than Minimum safe speed. So they raised it to match Vy.
I thought Vy and Vx were the same in a DA42?
popaviator
Well-Known Member
I used this website to gather the airspeed information for Vx and Vy. http://www.aopa.org/pilot/features/2006/feat0611.html
Cheyenne
Well-Known Member
Its in the PIM. Like Ben said, it's too slow so they don't list it.
CharlieRomeo
Well-Known Member
Vy in the Thielert-powered version is 79. Vy in the Lycoming-powered version is 90. Vx is not published in the manual for either model. I don't know where AOPA got its information.
Cheyenne
Well-Known Member
Correct. (just to be clear) The reason they don't list the number is in the PIM.
R
Roger, Roger
Guest
Thank you Chris. You da man.
ntbjounin
Well-Known Member
yes they do. it's something like 62, but i forget the actual #.
CharlieRomeo
Well-Known Member
Haha No problem. 14 posts in over two years. I'm doing pretty well.