rharshberger
Well-Known Member
I'm getting a lot of inputs on shock cords, rigging, etc., however. I still have questions. Maybe my drawing will help clear things up for me.
I can see three different methods of rigging. 'A', 'B', and 'C'. I'm preferring 'B', but not real sure. Let me know what experience has taught you guys to be the best system.
Also, I'm still puzzled as to the length of the cords running from booster to the drogue, and the length of the main shock cord. I hear 3-5 times the length of the rocket, 6 times the length, etc. Too long is supposed to be bad, too short 'also' bad. How does one determine what is truly correct for a specific rocket? If I go by some of the 'rules of thumb', heck. That means some of you L3 guys need to be using steel cables a couple hundred feet long, LOL. That's why I am confused. What works best, for you guys in DD?
The drawing is not to scale. For reference only...
View attachment 298019
One thing I will recommend if you go with D is put the drogue closer to the AvBay, as the rocket falls under drogue the main chute section should always stay above the fin section. If the fin section is above the main payload bay it can fall into the deploying chute causing a collapsed chute.