We investigated order parameter textures of the rotating superfluid 3 He-A phase in a single narrow cylinder with
a diameter of about 10 times the dipole coherence length by the cw-NMR method. It is theoretically proposed
that in such a narrow cylinder, a few special textures will appear due to the confinement in a cylindrical geometry.
We observed three types of NMR spectra in the A phase. The NMR spectra of the textures were identified by
a comparison with the spin waves excited in the NMR potential using their numerically calculated resonance
frequencies and relative intensities. We have established a method to selectively generate each one of the textures
by controlling the conditions when the A phase was formed, such as the applied magnetic field, rotation angular
velocity, and temperature
