trailing stop and limit order at the same time?

I have never used a trailing stop, but the mechanics of using a limit order with a trailing stop would be self defeating.  If you set a limit order, then that is a hard price.  A trailing stop is a floating price.  So, by the vary nature if the trailing stop gets hit, then you would sell at the market.  How would a limit order move with a trailing stop?  I suppose they could set a trailing stop with a limit that is at a set amount below the highest price, etc.  However, this again seems to me would defeat the purpose of a trailing stop.  If the trailing stop gets hit, then in theory it would seem to be that you just want out of the stock fast.  So what happens if a stock moves so fast that the stock blows past the limit?  Then you would not sell the stock at all and you could end up in a worse situation.

I would suggest setting up a limit order at first, then as the stock moves up set a trailing stop as either a percentage or a dollar amount.

Hope this helps, perhaps someone can explain it better.  Good trading.

Good Morning Everyone:

Trailing stop orders by nature trigger as market orders once the trailing criteria of the order have been met. If you are interested is setting a limit to be triggered at a certain stop price then a stop limit order is the proper order type. This type of order does not trail the price of a stock upward like a trailing stop, however you can manually adjust your stop and limit prices at anytime. 

Neal Atkins- TRADEKING -Supervisor E-Communications