First up rolling Carbon tubes, you guys have seen how I do this, so I bore you with that,
Forward Airframe is 2 layers of Unidirectional 3k Carbon, then 3 layers of 2x2 twill
giving me 5 layers longitudinal strands and 3 layers of hoop strands
I did this so the forward tube can withstand more bending stresses, being it's long and unsupported.
this is a trade off between compressional forces and bending forces..
Idealy I shuold have used a 3 layers of 45x45 double bias carbon and 2 twill, but the shop didn't have any double bias, and I would have had to wait to order it in.
So I made do with out
Mid section Airframe and Booster section were rolled as follows;
1 layer of Uni 3K carbon, then 4 layers of 2x2 twill
giving me 5 layers of longitudinal strands and 4 layers of hoop strand.
This arragnment gives better compressional force, to deal with motor force, and fin forces
all tubes are 4" diameter and are 1.75mm wall thickness
Tubes are raw, they have not been sanded or polished