[Llarry]

I've posted that a corvette-sized ship -- smaller than a frigate -- does not generally have full-spectrum capabilities in all warfare areas.

Here's a largish corvette -- bordering on frigate size? -- that comes close. The Israeli Navy German-built Sa'ar 6 class corvette appears to be very capable, with anti-ship missiles, air defense missiles, guns and a helicopter deck and hangar. it is 295 feet (90 m) long with a full load displacement of 1,900 tons. The only deficiency that I might cite would be a lack of land-attack missile capability but of course the main gun forward would help in that regard. As with previous Israeli Navy ships, this appears to be very capable.

The first photo is of a model and the second is of a Sa'ar firing a missile. The Israeli Navy has four ships in commission.