DynaSoar
Well-Known Member
- Joined
- Mar 14, 2004
- Messages
- 3,022
- Reaction score
- 0
Regarding kevlar shock cords:
I learned at the CATO launch that while nomex is heat resistant, kevlar is less so. On one bird the kevlar shock cord burned through and I ended up with a tumble recovery body and chute recovery nose (it was the upscale Rock-A-Chute, which otherwise survived without a scratch). Another burned pretty good, but not quite through.
The lesson is that kevlar is fine, but it should not be strung directly foreward from the opening of the MMT. From now on, I'll be stringing it between the upper centering ring and the body, or else through a hole drilled in the upper ring somewhere mid-ring, rather than between the upper ring and MMT tube.
I learned at the CATO launch that while nomex is heat resistant, kevlar is less so. On one bird the kevlar shock cord burned through and I ended up with a tumble recovery body and chute recovery nose (it was the upscale Rock-A-Chute, which otherwise survived without a scratch). Another burned pretty good, but not quite through.
The lesson is that kevlar is fine, but it should not be strung directly foreward from the opening of the MMT. From now on, I'll be stringing it between the upper centering ring and the body, or else through a hole drilled in the upper ring somewhere mid-ring, rather than between the upper ring and MMT tube.