Bruiser
Well-Known Member
- Joined
- Jun 7, 2018
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Nose Cone Mods Revisited
In post 4 I went over the modifications I did to the nose cone. One of those mods was to make it one inch longer to match the nose cone in the Black Brant VB drawing in post one. Bobby Hamill posted a picture of a Black Brant VB in post 7 that had U.S. markings on it. Down around post 14 I decided to switch it up and model that rocket and that's why I am revisiting the nose cone. After a lot of careful measurements and a few print outs I determined that this rocket used a shorter nose cone than the rocket I was modelling at first. It turned out that I needed the nose cone back to the original length.
I almost left it alone but that just wouldn't be right First I removed the one inch of body tube from the shoulder. I started with my x-acto knife but then I stabbed my index finger pretty deep. After I got that cleaned and bandaged I switched over to a single edge razor blade followed by some 120 emery cloth. It came out pretty well, but now I had a shoulder that was 3.5 inches long. I trimmed it to 2.5 inches with my razor saw.
Next was to install the removable bulkhead. Earlier today I had epoxied the 3 t-nuts in the ring so I just needed to epoxy the ring into the nose cone. I placed a bead of epoxy inside the lip of the shoulder and pushed the ring in about 3/16ths of an inch and stood it up to allow the epoxy to settle into a nice fillet. A few hours later I added a fillet of epoxy on the bottom side of the ring. Here is what I have now.
I need to find a small u-bolt to install in the bulkhead that screws to the ring and the nose cone will be done.
-Bob
In post 4 I went over the modifications I did to the nose cone. One of those mods was to make it one inch longer to match the nose cone in the Black Brant VB drawing in post one. Bobby Hamill posted a picture of a Black Brant VB in post 7 that had U.S. markings on it. Down around post 14 I decided to switch it up and model that rocket and that's why I am revisiting the nose cone. After a lot of careful measurements and a few print outs I determined that this rocket used a shorter nose cone than the rocket I was modelling at first. It turned out that I needed the nose cone back to the original length.
I almost left it alone but that just wouldn't be right First I removed the one inch of body tube from the shoulder. I started with my x-acto knife but then I stabbed my index finger pretty deep. After I got that cleaned and bandaged I switched over to a single edge razor blade followed by some 120 emery cloth. It came out pretty well, but now I had a shoulder that was 3.5 inches long. I trimmed it to 2.5 inches with my razor saw.
Next was to install the removable bulkhead. Earlier today I had epoxied the 3 t-nuts in the ring so I just needed to epoxy the ring into the nose cone. I placed a bead of epoxy inside the lip of the shoulder and pushed the ring in about 3/16ths of an inch and stood it up to allow the epoxy to settle into a nice fillet. A few hours later I added a fillet of epoxy on the bottom side of the ring. Here is what I have now.
I need to find a small u-bolt to install in the bulkhead that screws to the ring and the nose cone will be done.
-Bob