Maybe the transmission we really need isn't all that far off. http://www.edmunds.com/insideline/do/Drives/FirstDrives/articleId=46871 With a CVT transmission...
1713
Marc Ramsey
marc_5k
Dec 7, 2005 8:26 am
... CVTs have been in the US for quite some time, starting with Subaru Justy back in the late 80s. They were limited to fairly small (i.e. low torque) cars...
1714
Leon - C
halfvw
Dec 7, 2005 4:32 pm
... From: "Marc Ramsey" <marc@...> To: <winchdesign@yahoogroups.com> ... I was aware of the old Justy CVT but I just found it interesting that they were...
1715
Frank Whiteley
kestrel19ctd
Dec 7, 2005 5:19 pm
... They been under development for over 30 years and I think this is not the first go around for the Audi chain-drive CVT. I thought they were available ...
1716
superunknown9999
superunknown...
Dec 7, 2005 10:31 pm
Hi, long time reader first time poster. I'm on a design team at Michigan Tech. with the intentions of designing a new winch. The thing I'm worried about when...
1717
burrtorr
Dec 8, 2005 12:10 am
... wrote: Hi Ben, At the risk of teaching the teacher........ Why not get a group together and visit you local club see what goes on and even take a ride. ...
1718
Chuck Stoltz
ctstoltz
Dec 8, 2005 2:18 am
Hi Ben, and welcome to the debates. I hadn't heard that there was anything going on with winch designs on a Michigan campus, and it sounds like you could use a...
1719
Chuck Stoltz
ctstoltz
Dec 8, 2005 2:18 am
Hi Ben, and welcome to the debates. I hadn't heard that there was anything going on with winch designs on a Michigan campus, and it sounds like you could use a...
1720
Frank Whiteley
kestrel19ctd
Dec 8, 2005 7:13 am
Ben, Nice to hear from a lurker. I'd like to know more about your approach to this and definitely not trying to be a wet mop. 1. How large is your design...
1721
George Moore
soargsm
Dec 8, 2005 8:24 am
Hi Ben, This issue is discussed in detail in the paper in the postings on Winch Dynamics and a following addendum. An alternate argument is what happens if...
1722
Robert Ussery
uavbob
Dec 8, 2005 10:50 pm
Ben, I don't think there's any doubt that constant-tension as George described is the way to go. A couple of years ago, I built a device to transmit the...
1723
superunknown9999
superunknown...
Dec 9, 2005 3:06 pm
I guess that prettymuch makes sense to me. Basically the only way to keep bad things from happening is to tell people not to do them. Now about the SD team, i...
1724
Frank Whiteley
kestrel19ctd
Dec 9, 2005 3:49 pm
In the USAF, initial training certification in critical tasks generally required about 25 repetitions, a bit less for some, a bit more for others, and...
1725
George Moore
soargsm
Dec 10, 2005 12:26 am
Robert, Thank you for your afirmation of the constant tension methodolgoy. One comment about your later statement on telemetered tension. Using a lumped...
1726
Robert Ussery
uavbob
Dec 10, 2005 2:29 am
George, I don't have any actual experience with tension measurement in cables, so I may be wrong here, but I'm still not convinced that the simplest / cheapest...
1727
Neil Wolthers
seeseacuethree
Dec 10, 2005 3:05 am
Frank: What does this post mean? Is this saying that after 25 times of doing something, you are qualified to do it, in the USAF? I do not see the connection...
1728
superunknown9999
superunknown...
Dec 10, 2005 4:16 am
I took no offense in that post. I believe Frank was explaining why somebody pulling back on the stick prematurely is uncommon. Or at least should be. I...
1729
Frank Whiteley
kestrel19ctd
Dec 10, 2005 6:35 am
Under high load switch on, no or low load switch off. Frank...
1730
Robert Ussery
uavbob
Dec 10, 2005 6:39 am
... Care to elaborate? -- Robert Ussery Undergrad Research Assistant Aerospace Systems Design Lab Georgia Institute of Technology (404) 917-9781...
1731
Frank Whiteley
kestrel19ctd
Dec 10, 2005 7:05 am
Operating a winch, learning to fly the winch appropriately. About 25 snaps at either end is sort of a minimum safe standard, depending on your point of view....
1732
Frank Whiteley
kestrel19ctd
Dec 10, 2005 7:11 am
Your 'wart' switches on at some pre-determined minimal load and switches off at release. The right batteries could last a very long time and there would be no...
1733
Robert Ussery
uavbob
Dec 10, 2005 7:30 am
... Yup... lots of nice tricks like this could be built into it. By the way, just ran across this link today: http://tinyurl.com/9kzzc Sheds an interesting...
1734
Bill Daniels
n141sf
Dec 10, 2005 2:20 pm
There have been several posters that have aluded to the 'complexity' of using telemetry. I think this is not as complicated as you might think. Model airplane...
1735
Glider XC4Me
zsam1
Dec 10, 2005 4:25 pm
Is there a relationship of drum rotation to tension? ... From: Robert Ussery To: winchdesign@yahoogroups.com Sent: Friday, December 09, 2005 8:29 PM Subject:...
1736
prep@...
Dec 10, 2005 4:58 pm
There is a relationship between winch drum torque and line tension and it is very close to linear. It will vary with line position though, as the drum fills. ...
1737
Frank Whiteley
kestrel19ctd
Dec 10, 2005 6:45 pm
E-mail me off list Frank_Whiteley@... ... From: Glider XC4Me [mailto:growursavingsjunk@...] Sent: Saturday, December 10, 2005 7:43 AM To:...
1738
Robert Ussery
uavbob
Dec 10, 2005 9:38 pm
... Good point. Inexpensive, low power, long range radio systems are becoming quite mainstream. Connecting a range of sensors to a radio such as you describe...
1739
burrtorr
Dec 11, 2005 12:26 pm
Hi Steve A few simple answers......... My club use winches with 350 Chevrolet V8 engines and launch gliders up to a DG500 22 meter without a problem, although...
1740
George Moore
soargsm
Dec 12, 2005 9:05 pm
Hello All, There have been a number of posts lately regarding the best method of measuring the tension in the cable. This post is a response to several of...
1741
bodhiwankenobi
Dec 13, 2005 8:14 pm
hi guys , i have an extra upper vent window rail . and i am looking to swap it for someones extra lower . daron...
