foose4string
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- Joined
- Jan 17, 2009
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Since the snow is piling up at a ridiculous rate, I figured this would be as good a time as any to get back in the swing of building. It's been a while. I picked up the Crossbow for half price last week and it looks like a pretty easy build. It's small enough where I can finish it quickly and have an interesting looking rocket when I'm done. I have found a couple glitches in the instructions, however.
The first one involves the forward dorsal fin(K) which is supposed to be glued on the "HL" line. The instructions say to mark the tube at 3" and glue the fin there. 3" puts the mark right at the motor mount seam(the motor mount tube gets coupled to the main BT20). The illustration shows the 3" mark well short of the motor tube seam instead of the end, and a portion of fin(K) resting on both sides of the seam. In reality, one end of fin(K) will be flush with the seam.
The other glitch so far is there is no measurement provided for placement of the forward "wing" fins(J). Has anyone else noticed this or have any idea what that measurement is supposed to be? Am I missing something here?
The first one involves the forward dorsal fin(K) which is supposed to be glued on the "HL" line. The instructions say to mark the tube at 3" and glue the fin there. 3" puts the mark right at the motor mount seam(the motor mount tube gets coupled to the main BT20). The illustration shows the 3" mark well short of the motor tube seam instead of the end, and a portion of fin(K) resting on both sides of the seam. In reality, one end of fin(K) will be flush with the seam.
The other glitch so far is there is no measurement provided for placement of the forward "wing" fins(J). Has anyone else noticed this or have any idea what that measurement is supposed to be? Am I missing something here?