I had another poster on another forum indicate to me that he thought that the TY-90 was a rolling airframe. I indicated that I had read nothing at Jane's, on the Chinese blogs, on Chinese Defense sites, or anywhere else that said this...and that to the contrary they indicated that this missile had always been strictly fin stabilized.
Are you aware of anything different?
I don't know or don't think the TY-90 is a rolling airframe.
I'm pretty sure the FL-3000N as shown here has to be a rolling airframe. Note again the two receivers. I believe its meant for passive radar seeking. In order for it to scan and locate the radar emitting target, the receivers have to roll around. Its a process similar to conical scanning.