air brushing

One tip would be to post this question in the "Painting and Airbrushing" section.

We would also need more info,what paint do you plan to use,acrylic or enamel,what airbrush,does it have a mixing cup or jar,what air source,

I second the recommendation to visit that forum.  Also, ships seem to be amenable to more brush painting than most other genres (with the exception of figures).  Hulls and major deckhouses look better airbrushed, but smaller details can be brushed by hand.  Many ship modelers do wooden decks by hand, or with a rattle can undercoat and hand painting over that.  Also, whatever method you use, priming is always a good idea.

I would suggest reading everything you can get your hands on. Kalmbach publishes 'How to Use an Airbrush", available in the bookstore, and there are numerous articles in Fine Scale and other modeling magazines that show specific techniques and applications.

Another thing that really helps is practice. Rather than spend money on model paints and plastic, you can start with india ink and posterboard until you get a good feel for your AB. I've used an airbrush for years, but I always have some scrap black (for light colors) and white boards handy to check the spray pattern or get a feel for a new type of paint, tip size, etc.

Hope this helps, and have fun!

Mike

Food coloring is another good medium to practice with. Easy clean up.