A US Air Force B1-B bomber plane flies above the Syrian town of Kobane, , also known as Ain al-Arab, on October 18, 2014 as seen from the Turkish border town of Suruc.
The Hell Cannon is a towed, projectile launcher, that is roughly similar in dimensions to the US built 105mm M101A1 Howitzer. It can launch a plethora of improvised explosive projectiles, but its main ammunition of choice (or of necessity?) is a highly modified propane gas cylinder, complete with stabilizing fins and filled with a crude explosive mixture.