Beeing an german airforce pilot(retired), I have never heard of an aircraft with an Altimeter in meters..
11600 meters would be 38057.742 feet. Some statistics.
Fighter jets of today have a maximum operating altitude of aorund 60,000 feet.
However, the word operating must be stressed. A F-105 starfighter has been past 100,000 feet before.
So has the an F-15, reaching 115,000 feet or so highest record flight by a fighter equipped with missiles (therefore having a tactical purpose) is the MiG-25 Foxbat carrying 4 Archer Air to Air missiles. It reached an altitude of 125,635 feet.
These are record flights, intended for no other purpose but to show off, or test the extended capabilities of aircraft. They have no tactical advantage. and these aircraft are not designed to fly at those altitudes the plane with the highest operating altitude, is the SR-71, which flies between 80,000 and 85,000 feet. This means the plane was designed to fly that high. it was meant to, it didn't need to be pushed hard, or specially modified to attain that height.
Now back on topic.