Dear Group For those that are interested pls find attached an article in the latest Gli - Chat newsletter for Narrogin Gliding Club about the Auto Pulley ...
1380
Ulrich Neumann
ulineumann
Jul 12, 2005 6:41 pm
... latest ... Pulley ... Michael, could you file the .pdf in the files section or provide a link to the article? Thanks, Uli Neumann...
1381
Michael Derry
michaelwderry
Jul 13, 2005 7:13 am
Hi Uli & All I have created a folder under files section of the groups at: http://groups.yahoo.com/group/winchdesign/files/ Can you all please feel free to add...
1382
Glider XC4Me
zsam1
Jul 13, 2005 11:27 am
Can a short video of this in operation be stored in this folder? I need more understanding of the anchor point and how it fits into the overall procedure....
1383
Michael Derry
michaelwderry
Jul 13, 2005 12:33 pm
On Wed, 13 Jul 2005 06:27:49 -0500 ... I don't have any video of the pulley system operating at present. If I do get the opportunity I will do so however this...
1384
Bill Daniels
n141sf
Jul 13, 2005 12:59 pm
Mike, I'd like to ask a few questions. How far does the car typically move during a launch as a percentage of the field length? What is the 'reset' time or...
1385
Michael Derry
michaelwderry
Jul 14, 2005 6:33 am
Hi Bill In reply: On Wed, 13 Jul 2005 12:59:06 -0000 ... approx 15 % ... To get the rope back for the next launch we would have the retrieve vehicle drag it...
1386
Bill Daniels
n141sf
Jul 16, 2005 12:23 am
... I was hoping that a few other winch manufacturers would advertise in Soaring. Today I hear that Rich Carlson, of the Soaring Safety Foundation, had asked...
1387
ctstoltz
Jul 21, 2005 10:24 pm
Wilst soaring in Minden a couple of weeks ago, Dan Daly told me about this group, and kindly provided me a link to it. I'd have joined sooner if I had known...
1388
Bill Daniels
n141sf
Jul 22, 2005 1:03 am
Chuck, a hearty welcome to you. ... I tend to favor the double link for the reasons that Tost spells out on their web site. Metal weak links will suffer...
1389
Chuck Stoltz
ctstoltz
Jul 22, 2005 3:18 am
Thanks for the feedback, Bill. My solution to the potential fatigue problem for clubs like mine, who don't do all that many launches, is to scrap the weak link...
1390
Bill Daniels
n141sf
Jul 22, 2005 3:31 am
Having the winch driver cut power is a good way to simulate a winch power failure but the SNAP of a real wire break can only be simulated by the instructor...
1391
John Giddy
jgiddyau
Jul 22, 2005 4:38 am
On Thu, 21 Jul 2005 22:24:07 -0000, you wrote: ... A couple of comments: 1. By "double weak links" I take it you mean that there are two TOST link plates...
1392
Ulrich Neumann
ulineumann
Jul 22, 2005 12:36 pm
Chuck, welcome to the group! This spring, I talked to one of your members about coming to your field to attend the winch clinic after the Ionia contest. Well,...
1393
burrtorr
Jul 22, 2005 4:41 pm
I agree with Uli, the creeping loss of engine power catches many out who either hang on in the hope that the engine will pick up speed or fail to recognise...
1394
Bill Daniels
n141sf
Jul 23, 2005 1:49 pm
I've been reading BGA accident statistics and reports and those German reports that I can translate that pertain to winch launch. There seems to be several...
1395
Frank Whiteley
kestrel19ctd
Jul 23, 2005 2:56 pm
... At RAF Wattisham in about 1979-1980, I had an inexperienced wing runner drop my SHK wing into tall grass just as the launch commenced (ex-ATC winch with ...
1396
Bill Daniels
n141sf
Jul 24, 2005 1:10 am
... I could concieve that had the wing gotten into the grass when the speed was higher than at the start, a cartwheeling ground loop would have been possible....
1397
Michael Derry
michaelwderry
Jul 24, 2005 2:01 am
Thinking aloud about this !!!! If the wing hits an obstacle then you definately should release. If the wing drops before flying speed is reached and you...
1398
Frank Whiteley
kestrel19ctd
Jul 24, 2005 2:36 am
... Not exactly. The girl on the tip dropped the wing just as the all out was given and it snagged the tall grass just as the power came on. The problem was...
1399
Frank Whiteley
kestrel19ctd
Jul 24, 2005 2:48 am
Of course there should be no obstacles ahead of the wing line. Grass grows, quickly during some seasons, especially if there's rain enough. It can take ...
1400
Bill Daniels
n141sf
Jul 24, 2005 3:23 am
... then ... not ... accounts ... cannot ... picks up ... Michael, the problem is that a CG hook is very unforgiving in a wing drop situation. The glider will...
1401
Michael Derry
michaelwderry
Jul 24, 2005 3:36 am
Runways in Australia here runways are smooth (bitumen or gravel) typically have ditches and fences next to the sides of them, some wider than others. In summer...
1402
Z Goudie
z_goudie
Jul 24, 2005 6:13 am
We have a couole of scenarios here: a) The "snap roll" technique where you have the wing on the ground as the winch accelerates you towards flying speed. The...
1403
burrtorr
Jul 24, 2005 10:21 am
Fast or slow accelration depends on the conditons of the weather such as wind strength and direction, the engine type and power used and more specifically the...
1404
Ian Forbes
zs_glw
Jul 24, 2005 7:47 pm
... I am more comfortable with a slightly slower rate of acceleration. It gives the pilot (and the instructor) a little more time to react. If there is just...
1405
Ian Forbes
zs_glw
Jul 24, 2005 7:47 pm
... Winch launching is very different to aerotow. Firstly the acceleration is much more rapid on a winch launch and there is much less time for a wing to drop....
1406
Bob Korves
bkorves
Jul 25, 2005 2:14 am
... From: winchdesign@yahoogroups.com [mailto:winchdesign@yahoogroups.com]On Behalf Of Frank Whiteley Training is critical. However, I've seen one posting on...
1407
Bill Daniels
n141sf
Jul 25, 2005 2:36 am
There is something to this discussion of reaction time. Winch launch does indeed happen quickly and the pilot has to be ready to react correctly if the...
