A aviation & planes forum. AviationBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » AviationBanter forum » rec.aviation newsgroups » Soaring
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Wanting to start a new glider club



 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #18  
Old April 29th 18, 11:22 PM posted to rec.aviation.soaring
Frank Whiteley
external usenet poster
 
Posts: 2,099
Default Wanting to start a new glider club

On Sunday, April 29, 2018 at 3:30:06 AM UTC-6, Paul T wrote:
At 20:43 28 April 2018, Chris Rowland wrote:
I did most of my ab initio training and learning to be an instructor

o
autotow.

I'd suggest avoiding reverse pulley because it's difficult for both

the to
car driver and pilot to know when to finish the launch. With

straigh
autotow it's easy, stop sufficiently before the end of the runway

that yo
can drive forward and lay the cable out.

Another issue is cross winds. The cable will drift downwind and

looking a
Ronan on Google Earth there are fields with irrigation equipment

there. Th
farmers will take a dim view of the launch cable being dragged

throug
their irrigation kit.

Chris




Don't see what the problem is at all with reverse pulley - had many
launches that way - the other end of the runway is just as easily
visible to the tow car driver and as speed decays the glider pilot
pulls off - think you creating an issue where none exists.

If you have a straight reverse pulley system and set it up properly,
with removable strops t both ends the cable is waiting for the next
glider, the car drives back and connects to the other end of the cable
and your ready to launch again.

Some reverse pulley systems where just way over the top -KISS is
the answer. Doubt these guys will be doing hundreds of launches a
day.

Crosswinds are something every ground launching site has to
contend with and 1000's of sites around the world seem to manage
ok with proper training - seem to remember the advice was to have
at least 80m width of clear land to launch from.


http://coloradosoaring.org/thinking_...ey/default.htm

I've had a couple of chats with John Foster. There are raised runway lights. Reverse pulley allows a lot more control of the line than direct auto tow, so could be an option. Today, UHMWPE ropes, spectra, dyneema, or polyolefin drag line might work for reverse pulley, though I'm unaware of an operation doing so.

Frank Whiteley
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Best Club class glider Paul T[_4_] Soaring 37 July 27th 14 11:17 PM
Janus 2-seat glider as a club glider? K_Miller Soaring 35 February 3rd 13 10:43 PM
Which glider club ran over the cop? Karen Soaring 1 July 22nd 10 10:11 PM
Club Glider Hangar? noel.wade Soaring 33 January 14th 08 10:47 PM
Littlefield Glider Club Jack Soaring 3 October 23rd 05 01:16 AM


All times are GMT +1. The time now is 07:55 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 AviationBanter.
The comments are property of their posters.