Omer 5 was manufactured during the 2002-2003 period to participate in a new category set up during competitions, the two-seater submarines. The idea chosen was to place the pedalers feet to feet in order to bring the propulsion system together in the middle of the submarine and thus reduce the bulk. The front pedaler, in addition to providing power, is also responsible for steering the submarine.

An improvement brought to the submarine was the presence of an on-board computer which presents an autopilot system. Thus, the pilot no longer has to drive the submarine and can focus only on his physical performance. In addition, this prototype used a pre-arched propeller model to counter the deformation caused by the force developed by the propeller. In addition to these improvements, the choice of building materials was different. The hull of the submarine was made of carbon fibers and kevlar with a core of high density foam.

The submarine was used in competition until 2007. The fastest speed this submarine reached was 8.035 knots. This time was recorded in Bethesda, MD during the 9th International Submarine Race in 2007.

This speed remains until today the absolute world record to beat.