Is it possible, or more.. without the pole, guy, etc ..

To fly a regular spinnaker on a cruising sailboat.

I came across a couple on the net that are cheap cheap.

The sails are in great shape.

But :: these are regular symetrical spinnakers. The kind that need pole,
guy, etc. Spinnaker track ..

I got thinking .. ?? What would happen if I just flew the spinnaker
without the "stuff".