Note: Sw4 has posted NO pictures. Also: if people only posted their own photos there would be a lot fewer pictures for us to look at. Those of us who come here to look at the world should be grateful to all those who post regularly, whatever the spource of the pictures. I am, even to the ones who act like jackasses here in the comment section.

Why don't you post your own photos instead of OP photos. That is my challenge to all the posters. Jchip8 are you listening?

this is what you do? post mediocre pictures you get from wikipedia? ok.

I read somewhere, that some of them for shord period of time were use internal in SU. In everyday use they flight with speed lower that speed of sound. Before Paris incident there was built a series of them - around 5 or maybe 8 aircrafts.

That's one more than I thought were ever in service. My $/50 worth