One of my current projects is a small O/D parasol wing sport plane. The motor, OS 26 FS, will be inverted and fully cowled. I amjust about ready to make the cowling.

I had in mind to try and make one from paper-mache or maybe a 2-piece one made from one or two plastic bottles.

I've never tried either of these methods before.

To attempt the paper-mache one I considered making a plug from modelling clay, plastering it with pieces of wet tissue paper applied with aliphatic glue, and then digging out the clay when the glue has dried.

For the plastic one I considered making a wooden plug and trying to mold the plastic over it with plenty of heat from either a heat gun or small gas bottle.

Has anyone out there had any experience using either of these methods, or can point me in the direction of some information that may help.

Thanks in advance.

Alan W