brewster_rockit
Well-Known Member
- Joined
- Nov 22, 2014
- Messages
- 67
- Reaction score
- 12
Hello all,
When I returned to the model rocket hobby after many years away, it seemed like I was having shock cord protection issues that I never remembered from before my hiatus. Sewing elastic shock cords were burning through after just a few flights, while the rubber ones in the kits were fairing somewhat better.
I've heard the term "shotgun ejection charge" thrown about, and I suspect that Estes had reformulated the ejection charge for better ejections during my time away from the hobby (probably due to feedback from customers about ejection failures.)
With that being said, am I alone in my shock cord burnthrough troubles? Should I just double up on the wadding I'm using to protect my shock cords, or is there a technique for installing the wagging I should be aware of? I already place sheets of wadding over the tube and push down to get a good seal where the wadding touches the wall of the body tube. Is it time to move away from sewing elastic (or Quest-style sewing elastic plus kevlar) on my scratchbuilt models?
When I returned to the model rocket hobby after many years away, it seemed like I was having shock cord protection issues that I never remembered from before my hiatus. Sewing elastic shock cords were burning through after just a few flights, while the rubber ones in the kits were fairing somewhat better.
I've heard the term "shotgun ejection charge" thrown about, and I suspect that Estes had reformulated the ejection charge for better ejections during my time away from the hobby (probably due to feedback from customers about ejection failures.)
With that being said, am I alone in my shock cord burnthrough troubles? Should I just double up on the wadding I'm using to protect my shock cords, or is there a technique for installing the wagging I should be aware of? I already place sheets of wadding over the tube and push down to get a good seal where the wadding touches the wall of the body tube. Is it time to move away from sewing elastic (or Quest-style sewing elastic plus kevlar) on my scratchbuilt models?