[Old Pilot]

From the BBC website

Iraqi pilots who have joined Islamic State are training its members in Syria to fly three captured fighter jets, according to a UK-based activist group that monitors the conflict.

The Syrian Observatory for Human Rights (SOHR) said witnesses had seen the planes being flown around a military airport in Aleppo.

How long will they last against the combined alliance pilots?

[Rod1]

Probably already in bits.

Rod1

[Jonzarno]

Interesting that the Iraqi pilots are training IS people to fly the planes and not flying against the coalition themselves.

I would have thought the only real danger would be some sort of Kamikaze mission whether against the coalition or the Kurds / Iraqis.

That said, Rod1's probably right, if the planes still exist and are visible, they'll get nailed whether on the ground or in the air.