Concerto Writing question

I am writing a concerto for violin, flute, and trumpet together, and I am wondering, should I leave out the regular orchestra flutes and trumpets, or is it typical to leave them in anyway? I suppose it is a matter of taste, but I am curious about how it is usually done.

Usually the ones in the orchestra are kept in. That said, there's nothing wrong with reducing the woodwind and brass sections in a wind concerto.

Do whatever makes the music sound good to you.

*Laughs* More to the point I have three weeks to write it in and don't want to deal with those extra flutes and trumpets. ;)

I believe Caltech is right - nowadays, the ripieno players are left in the orchestra. Mozart and his contemporaries usually left them out, though; e.g. when they were writing a flute concerto, there were usually no flutes in the orchestra. Concerti for strings were an exception, of course.

What an unusual sound that combination of solo instruments will make. I hope you'll post it when it's done.

Oh, and GET TO WORK! ;)