Regardless of what the US is admitting here I would bet SA-14s at the least...
http://www.defensenews.com/story.php?F=1473394&C=americaA Russian-made surface-to-air missile launched by anti-American insurgents brought down a U.S. military helicopter that crashed in Iraq on Jan. 16, ABC News reported Jan. 17, citing unnamed Pentagon officials.
The network said the shootdown represented “a troubling new development” because there are hundreds and possibly thousands of SA-7 missiles that remain unaccounted for in Iraq.
The AH-64 Apache went down north of Baghdad, killing its two crew members and becoming the third U.S. helicopter to be shot down in 10 days. A little-known Islamist group, Salahu Din al-Ayubi (Saladin) Brigades, claimed in an Internet statement it used rockets to shoot down the Apache.
According to the ABC report, SA-7s had been part of Saddam Hussein’s arsenal, much of which was looted after the invasion.
But until now, insurgents had never successfully used them against an American aircraft.
”It could be just a lucky shot,” Gen. John Keane, the Army’s acting chief of staff, told ABC News. “Or it could be that they have invested in a training program and they now have some qualified operators and that’ll be more of a threat than it has been in the past.”
Apache helicopters are designed to be able to survive attacks by missiles like the SA-7, but the military is investigating why the chopper targeted in Monday’s attack did not, the report said.
...perhaps because it was something newer? :eyes:
http://www.globalsecurity.org/military/world/russia/sa-14.htmSA-14 GREMLIN 9K34 Strela-3
The Portable missile system "Strela 3" is equipped with small size solid propellant guided missile. The missile has an improved system of overcoming countermeasures, increased range and flight altitude. It is developed for destroying low flying aircraft and helicopters. The missile can hit the targets both in chasing and confronting headings.
The SA-14 GREMLIN (Strela-3 9K34) man-portable SAM is the successor to the SA-7/SA-7b (Strela-2 9K32 and Strela-2M 9K32M). The system consists of the 9P59 gripstock, 9P51 thermal battery/gas reservoir, and 9M36-1 missile. The external appearance of the SA-14 is very similar to the SA-7, and the gripstock, launch canister and aft missile body are almost identical. The most significant differences are the new seeker system and the substitution of a ball-shaped 9P51 thermal battery and gas reservoir for the SA-7's canister shaped battery.
The SA-14's new nitrogen-cooled lead sulfide seeker allows it to home in on the exhaust plume of jet engines, turboprop and helicopter gas turbine engines. The enhanced seeker allowed the SA-14 to be fired against targets from much broader angles, as well as defeating countermeasures such as exhaust shrouds. Optical filtration was added to the seeker to reduce vulnerability to typical IRCM flares. The warhead of the SA-14 was nearly doubled in weight over the small warhead of the SA-7. The guidance electronics were reduced in weight and a new solid-propellant motor was introduced, compensating for the heavier warhead and improving aerodynamic performance. The SA-14 has a maximum range of 4500 meters, and a maximum altitude of 3000 meters.