- Joined
- Aug 6, 2022
- Messages
- 3,368
- Reaction score
- 3,096
Another safety thing I would joke about is if the descent is ballistic, it wets down vegetation surrounding the impact area.
Or closes the lakebed so you can't get there to retrieve it.
Another safety thing I would joke about is if the descent is ballistic, it wets down vegetation surrounding the impact area.
I watched a video over the weekend where the students were launching 1-200 golf balls, probably be more vehicle damage from those than lead shot in case of a cato...Many, many years ago (1990s?) at a launch, someone was bragging about having 44 pounds of lead in their nosecone for stability.
Check out this 11/2023 post on how I do it:I'm building a 3" rocket for AIRFest this year and have designed it to fly on a G all the way to a K. For the K motor, in order to get decent stability I need to add 3oz of mass to the top of the nose cone. The nosecone is a standard issue LOC 3" plastic nosecone and houses my electronics. I don't have any issue mounting mass since my ebay is in there and i can 3dprint whatever structures I need. My question is what material is typically used to add mass? I don't want to make like a kinetic warhead so something that can absorb energy in a crash would be ideal IMO. I was thinking of something like a water balloon but i have my doubts.
what material have you guys used to add mass to a nose cone?
PS i built a really neat removable/reusable motor mount where i can swap out a 29mm mount used for the G and then swap in a 38mm motor mount for everything else (H, I, J, and K). Once i get at least a checkout flight in i'll do a thread about the build in general.
Shouldn't that be either a ¾" hole or a scrap piece of BT-50?Parts list.
...
- Scrap center piece of a BT20 centering ring cut down to fit inside the BT20 tube.
- 3" Plywood bulkhead. Found these at Michaels. 10 in a pack for $3. Drilled a 1" hole in the center.
...
Inserted the bulkhead into the nose cone just above the shoulder then slid the BT20 tube into the hole until it bottomed out against the tip of the cone.
Shouldn't that be either a ¾" hole or a scrap piece of BT-50?
Enter your email address to join: