A new, different looking Turkish drone has been showing up over Syria at least since 23 January

They all dispense with a flight-number/call sign -- who are you going to call in a drone, right. They also have a mode-s identifier that is different from a 'vanilla' Bayraktar (TB2) -- which is digits only -- and include letters. Interestingly, as with the regular TB2s, there is one with a legal mode-s code.

They are at this time, in order of appearence :

They all also appear to cruise a little higher and definitely faster than your average TB2.

If you take 001071, for example, on average it cruises between at 15 and 17,000 feet at somewhere between 70 and 90 knots.

These drones rarely go below 18,000 feet and rarely below 100 knots, at times double the speed of a classic TB2 flying similar patterns.