News:



  • July 08, 2025, 07:44:44 AM

Login with username, password and session length

Author Topic: ...a sperement...  (Read 1562 times)

Offline Bootlegger

  • 22 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2711
...a sperement...
« on: July 27, 2012, 09:58:32 AM »

    y1   I am gonna conduct a sperement on spectra 30lb test lines.
 First is soak some of the lines in fuel overnight to check the effect..
 Second is making the line ends up like we do on steel cables, wrapping A M A style...
 Third all tests will be using 1/2A models for safety..

  Hopefully I will have some results by mid week.. #^
8th Air Force Veteran
Gil Causey
AMA# 6964

Offline Tim Wescott

  • 25 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 12907
Re: ...a sperement...
« Reply #1 on: July 27, 2012, 12:13:19 PM »
Do some where you tie the lines off to a bight (I think that's the right word) -- I've heard a rumor that that's the "AMA way" for Spectra-type line, and at any rate I've seen comments that that's the 'right' way to do it.

My personal experience is tying it off to miniature line clips (which are very bight-like); I've only had one failure and that was after the model went slack on the lines and made it almost halfway across the circle before it came tight again with a huge jerk -- and the crash was on a subsequent flight on the same lines (I think I learned something from that).
AMA 64232

The problem with electric is that once you get the smoke generator and sound system installed, the plane is too heavy.

Offline David Russum

  • AMA Member
  • Trade Count: (0)
  • Lieutenant
  • *
  • Posts: 117
Re: ...a sperement...
« Reply #2 on: July 27, 2012, 12:34:00 PM »
Gil, get in touch with Bill Wilson here in Dallas.  He has done lots of tests with knots, connections, breaking strength, etc.  He probably has the most experience of anyone around here with Spectra lines.
AMA #335952

Offline Douglas Ames

  • 2014 Supporters
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 1299
Re: ...a sperement...
« Reply #3 on: July 27, 2012, 12:44:40 PM »
I like sperement gum!

The little 1/2A job I used to have had fishin' lines (spectra).

The knot was critical, especially when lubed with castor/ engine exhaust. If anything is going to fail it will be that.
AMA 656546

If you do a little bit every day it will get done, or you can do it tomorrow.

Offline Mark Scarborough

  • 2015
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 5918
Re: ...a sperement...
« Reply #4 on: July 27, 2012, 01:20:52 PM »
you might also get ahold of the combat guys, they have been sperimenten with them thar spectral lines too,,
For years the rat race had me going around in circles, Now I do it for fun!
EXILED IN PULLMAN WA
AMA 842137

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 4060
Re: ...a sperement...
« Reply #5 on: July 28, 2012, 05:56:06 PM »
If you do use knotted ends, wet the thread before pulling it tight.  It will pull tighter without abrasion.   I have had no further failures in knotted ends as I did with dry tying.
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!


Advertise Here
Tags: