 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
tonyplane(at)bellsouth.ne
Guest
|
 Posted: Sat Jan 27, 2007 9:26 am Post subject: 601XL Wing Flutter???? |
 |
|
| Quote: | | Hi Bill,Glad everything came out OK. Looks like you ran into some really weird turbulence from the power-plant, giving you an "E" ticket ride. If you were really experiencing wing or control surface flutter, your diving and picking up speed should have exacerbated the problem with the amplitude going divergent very rapidly, until something(s) bends or more likely breaks off. Only saw this once in a film of a dynamic model in a wind tunnel - once flutter started the entire model was gonzo in a second or two. Do you recall experiencing any feed back in the stick/rudder?In 199 hours in my XL, I have had some bumpy rides and the airplane has handled it ok - Glad everything came out OK. Looks like you ran into some really weird turbulence from |
0 | Quote: | | Glad everything came out OK. Looks like you ran into some really weird turbulence from |
1 | Quote: | | Glad everything came out OK. Looks like you ran into some really weird turbulence from |
2 | Quote: | | Glad everything came out OK. Looks like you ran into some really weird turbulence from |
3 | Quote: | | Glad everything came out OK. Looks like you ran into some really weird turbulence from |
4 | Quote: | | Glad everything came out OK. Looks like you ran into some really weird turbulence from |
5 | Quote: | | Glad everything came out OK. Looks like you ran into some really weird turbulence from |
6 | Quote: | | Glad everything came out OK. Looks like you ran into some really weird turbulence from |
7 | Quote: | | Glad everything came out OK. Looks like you ran into some really weird turbulence from |
8 | Quote: | | Glad everything came out OK. Looks like you ran into some really weird turbulence from |
9 | Quote: | | the power-plant, giving you an "E" ticket ride. |
0 | Quote: | | the power-plant, giving you an "E" ticket ride. |
1[/quote]
[quote][b]
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
 |
ggower_99(at)yahoo.com
Guest
|
| Posted: Tue Jan 30, 2007 9:56 am Post subject: 601XL Wing Flutter???? |
|
|
My "best" turbulent ride, was years ago (about 25...) when we were invited to a Xcountry flight competition over the Mojave Desert in a hang glider...
In that area, you experience all the "flutter", "G forces" or what ever your fear can imagine, but at the end, just the greatest flight of your life.
Never tried Gliders (cabin type) yet, but I think will be a similar experience.
Saludos
Gary Gower.
701 912S.
Do not archive.
"T. Graziano" <tonyplane(at)bellsouth.net> wrote:[quote] | Quote: | Hi Bill,Glad everything came out OK. Looks like you ran into some really
weird turbulence from the power-plant, giving you an "E" ticket ride. If you were really experiencing wing or control surface flutter, your diving and picking up speed should have exacerbated the problem with the amplitude going divergent very rapidly, until something(s) bends or more likely breaks off. Only saw this once in a film of a dynamic model in a wind tunnel - once flutter started the entire model was gonzo in a second or two. Do you recall experiencing any feed back in the stick/rudder?In 199 hours in my XL, I have had some bumpy rides and the airplane has handled it ok - Glad everything came out OK. Looks like you ran into some really
weird turbulence from |
0 | Quote: | Glad everything came out OK. Looks like you ran into some really
weird turbulence from |
1 | Quote: | Glad everything came out OK. Looks like you ran into some really
weird turbulence from |
2 | Quote: | Glad everything came out OK. Looks like you ran into some really
weird turbulence from |
3 | Quote: | Glad everything came out OK. Looks like you ran into some really
weird turbulence from |
4 | Quote: | Glad everything came out OK. Looks like you ran into some really
weird turbulence from |
5 | Quote: | Glad everything came out OK. Looks like you ran into some really
weird turbulence from |
6 | Quote: | Glad everything came out OK. Looks like you ran into some really
weird turbulence from |
7 | Quote: | Glad everything came out OK. Looks like you ran into some really
weird turbulence from |
8 | Quote: | Glad everything came out OK. Looks like you ran into some really
weird turbulence from |
9 | Quote: | | the power-plant, giving you an "E" ticket ride. |
0[quote][quote]Dear Thread Friends, I went flying this afternoon. Took a fellow with me and
just wanted an hour in the clear blue. Conditions were perfect, clear, cool
and only a slight wind. The only big thing around much to see nearby is Lake
Juliette which has a big coal fired power station in the middle. Three huge steam
towers that look like a nuclear power station. We flew around the lake about
two miles away at 5000 feet so my pal could get a good look see. On the down
wind side we flew into an invisible killer. We were doing above 140 when we
flew into it. Instantly the left wing fluttered at a fast pitch, aileron and all
and it looked to be moving maybe two inched up and down. I figured a couple
seconds would break it off. I didn't have time to look around the passenger to
see if the right wing was fluttering, but I suspect it was. I chopped power and
did a hard diving wing over to the left and out of it. The flutter sound was
great even over my Lightspeed AN system and the whole thing probably last
maybe 5 or 6 seconds. I regained control out of the snap dive, maxing above 170
and flew slow and easy back to the field before I tested the controls.
Everything felt okay and I could see no wrinkles in the top skin so I landed. Didn't
really have much choice. Upon inspection I found no sign of stress, no skin
deform, no paint cracked around rivets, nothing. I will take off all inspection
panels for a close inspection this weekend and check bolts, controls, etc., but
I cannot believe such a prolonged violent movement of the wing did not damage
something other than my pride. Two things learned. Don't fly anywhere near a
power station. Even at 5000 feet and miles away the invisible heat rises and is
most extreme. Maybe intensified in cold weather. The other thing is the XL is
very, very tough. Oh, there is a third thing. How could I have been so stupid
not to know the first thing !! I am interested though in knowing why the
wings fluttered in this thermal? What theory of air dynamics would cause this
extreme reaction? Was is just the level of heat and speed the invisible air was
streaming past? This 8:00? 8:25? 8:40? [url= http://tools.search.yahoo.com/shortcuts/?fr=oni_on_mail&#news] Find a flick[/url] in no time
with the[url= http://tools.search.yahoo.com/shortcuts/?fr=oni_on_mail&#news]Yahoo! Search movie showtime shortcut.[/url] [quote][b]
| | - The Matronics Zenith-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Zenith-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
