File:Barrel Bombs 4.png

This image from 2012 and couple more are basically the only evidence bombs were carried inside aircraft and dropped with lit fuses (using a cigar due to wind). I recall at the time hearing they were actually captured IEDs being 'returned to sender' It soon became abundantly clear that they were ineffective. Either the fuse was too short and they exploded in the air or they hit the ground and were damaged so much before detonating they were ineffective.

They were replaced by external fabricated bombs using a variety of ad-hoc designs and impact fuses. These then were ultimately replaced by fairly crude copies of standard Soviet aerial bombs. These are the ones seen being dropped two or four at a time from external helicopter racks. The same design is also dropped from jet aircraft.

This didn't stop them being called barrel bombs. Anything dropped from a helicopter or jet was a barrel bomb - much like any jet aircraft in Syria is a MiG. --Charles Wood (talk) 00:20, 28 April 2018 (UTC)