Tie off

[Luckistrykes]

In some of the instructions it says to tie the chute off to the shock cord, others say the nose cone, is there really a difference, is one more effective than the other?

 

[chadrog]

I've never noticed an advantage to using one over the other. I guess one could argue that tying your 'chute (or swivel) to your shock cord adds a stress point, but I think that would only be a factor with a rubber band type shock cord.

 

[Fdog]

I have found that for 24" through 42" parachutes, attaching the nose cone to the shroud lines preferentially allows the nose cone to interact with the parachute when it rebounds during opening shock.

This interaction is usually bad for the parachute, especially if the nose cone has a point.

I have no data above 42", because I learned my lesson and now have a generous length of shock cord between the parachute and the nose cone....


All the best, James

 

[jadebox]

Most of the instructions for kits have you tie the shock cord to the nose cone then attach the parachute to the shock cord about one-third of the way from the nose cone to the body tube. But, someone in TRF suggested that, instead, you attach the parachute to the end of the shock cord and the nose cone to the shock cord about about one-third of the way from the end. This causes everything to come down in a more straight line, resulting in less tangling.

-- Roger

 

[Handeman]

I like to attach the nosecone to the shock cord about two thirds of the way to the end and then attach the chute to the end. Attaching the chute to the nose cone always seem to cause problems. It seems like the nose cone gets between the shroud lines and tangles everything.

 

[hcmbanjo]

Kit instructions still tell you to tie the parachute to the screw eye in the nose cone.
The nose cone will flip in between the shroud lines and tangle things up.

All my newest builds have the parachute tied to the end of the shock cord and the nose cone attached 1/3 the way down the shock cord.
If the upper body section is long, be sure it is tied on high enough it won'g swing and hit the lower body during recovery.

 

[Luckistrykes]

All my newest builds have the parachute tied to the end of the shock cord and the nose cone attached 1/3 the way down the shock cord.
If the upper body section is long, be sure it is tied on high enough it won'g swing and hit the lower body during recovery.[/QUOTE]

Im gonna try that, sounds like it makes the most sence

 

[Coop]

I like to attach the nosecone to the shock cord about two thirds of the way to the end and then attach the chute to the end. Attaching the chute to the nose cone always seem to cause problems. It seems like the nose cone gets between the shroud lines and tangles everything.

This is my method as well. The NC eye, then, doesn't have to support the whole weight of the rocket during descent, either --merely attaches the NC to the shock cord.


Later!

--Coop

 

[Micromeister]

To Prevent the nasty "Estes Dent" caused by the combination of way to short a Shockcord and the NC being tied directly to the end of the shockcord. attaching the chute approximately 1/3 of the distance between Body and NC (being sure to have a LEAST 36" of shock line out.) will eliminate the possibility of "the DENT" and Help ensure everything stays together.