聚氨酯尾錐

Wasn't expecting much for a chunk of urethane but this thing is light and the finish came out smooth with no bubbles or seams. Bolted it to my 4-inch airframe as a pass-through reducer and it seated perfectly. Base drag dropped noticeably on the last two flights.

The one-piece urethane casting is impressively light, and the lack of seams really cleans up the aft end on my bird. I used it as a pass-through reducer and it took the guesswork out of that transition.

The urethane is surprisingly light and rigid—my rocket’s stability improved noticeably once this was epoxied on. It also fit perfectly as a pass-through reducer for my airframe, which saved me from buying a separate part.