As in the previous Bullpup build, the lug eyelet was cut off and a second hole drilled for the shock cord tie.
You put two puts of clay into the nose cone. The instructions show it being tamped in place with a pencil. the hole was too small for a pencil and had to be enlarged to get all the clay in.
One of the the two centering rings has a notch for an engine hook.
This is a friction fit model with no engine hook. The instructions don't show or mention the notched ring.
I put the notched ring at the top of the engine mount tube. The added Kevlar tie will go through the engine hook relief notch.
The hole was a bit large and I was concerned the Kevlar knot could pull through it at ejection.
I cut a wadge shaped reinforcement piece from the edges of the centering ring card.
A small hole was punched with the rotary punch.
The Kevlar was fed through the small hole and the wedge piece glued on the top of the upper ring.
I am new to model rockets. I am assuming the Kevlar string attaches to the nose cone?
ReplyDeleteHi Werkplace,
DeleteI usually tie elastic to the Kevlar. The elastic ties to the nose cone.
There are some that use only Kevlar for a shock cord, but that Kevlar line must be really long.